www.seltech-international.com 3
Table of Contents
Dynamic loudspeakers and receivers……....................................... 4
Dynamic receivers………………………………………….. 5
Micro-size speakers………………………………………... 9
Loudspeakers…………….…………………………………. 14
Speaker boxes................................................................................. 30
Add-on acoustic solutions................................................................ 33
MEMS microphones........................................................................ 36
MEMS microphone evaluation kit.................................... 60
MEMS microphone gaskets………….…………………… 61
Balanced armature receivers........................................................... 62
Inline Mic for earphones.................................................. 79
Specialty microphones.................................................................... 80
Boom microphones & Sensors........................................................ 87
Accelerometers, Ultrasonic, Dampers, Wax protection.................. 92
Expertise in acoustics...................................................................... 97
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Dynamic loudspeakers and receivers
Seltech historical activity is to provide high-quality loudspeakers and
receivers. Thanks to a large selection of loudspeakers/receivers, Seltech offers the best solution for all acoustic sound requirements.
Our portfolio meets all needs for high-quality acoustics or cost-effective solutions for sound performance in various electronic products such as:
any tiny and handheld devices
automotive alarms & tones
corded & cordless phones
conference systems
portable navigation devices
on board/in-vehicle computers
medical devices
door entry systems
web radios
sound boxes
etc. Seltech provides a large variety of: 1/ dynamic receivers from 6x12mm to 8x15mm 2/ micro-size speakers from 9x16mm to 14x20mm 3/ loudspeakers either flat or rectangular, oblong, round, square, wideband … They are available with many contact options: solder pads, horizontal or vertical solder tags, spring contacts with or without cables & connectors (standard or custom). The features of our standard loudspeaker range:
impedances from 4Ω to 50Ω
rated input power from 0.2W to 5W
within frequency range from less than 200Hz up to 20kHz
housing materials: metal, plastic
membrane materials: paper, mylar, PEI, PI, cloth
magnet materials: AlNiCo, ferrite, neodymium (NdFeB), etc.
operating temperature: Industrial (-20 to 70°C) or Extended (-40 to +85°C) If you have any special/custom requirements out of our standard product range, just contact us. We would be glad to support you.
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Portfolio: SELTECH dynamic receivers
DYNAMIC RECEIVER MODEL
Picture Dimension
(mm) Impedance
(Ω)
Nom. power (mW)
SPL@ 1kHz (dB)
F0 (Hz)
Frequency range*
(Hz)
GR1206L020UN32MDA with mesh
6 x 12 x 2.25 32 20 117* 450 200 – 7k
GR1506L020UN32
6 x 15 x 2 32 20 118* 500 300 – 7k
GR1506L020UN32-WPG Waterproof
6 x 15 x 2.25 32 10 115* 500 300 – 7k
BR1506L025YN16/32M HAC
6 x 15 x 2.5 16 / 32 22 111.5** 450 300 – 6k
BR815S15YN32 Slim, HAC
8 x 15 x 1.5 32 10 114** 300 200 – 7k
* measured on type 3.2 high leak coupler @ nominal power ** measured on IEC at 10mw 1cm baffle
These are our standard models. For any other requirements (for eg. with cable & connector, paper/ABS sealing gasket, extended temperature range, waterproof, etc.), please contact us at [email protected]
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Product range:
• GR1206L020UN32MDA: with spring contacts and top mesh and adhesive
Specifications: Frequency response:
• Dimension 6 x 12 x 2.25mm including mesh and adhesive before compression • Impedance 32Ω
• Sensitivity 117 ±3 dBSPL
• Power ratio 20mW Nom / 40mW Max
• F0 450Hz
• Frequency range 200Hz – 7kHz
Measured on type 3.2 high leak coupler ear simulator
Product range:
• GR1506L020UN32: with spring contacts Specifications: Frequency response:
• Dimension 6 x 15 x 2mm • Impedance 32Ω • Sensitivity 118±3 dBSPL • Power ratio 20mW Nom / 50mW Max • F0 500Hz • Frequency range 300 – 7kHz
Measured in relative level (dB re 1kHz value),
on type 3.2 high leak ear simulator
Receiver 6x12mm GR1206L020UN32MDA
Receiver 6x15mm GR1506L020UN32
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Product range:
• GR1506L020UN32-WPG: with spring contacts and top gasket – waterproof IPx7
Specifications: Frequency response:
• Dimension 6 x 15 x 2.25mm including top gasket non-compressed • Impedance 32Ω
• Sensitivity 115±3 dBSPL
• Power ratio 10mW Nom / 30mW Max
• F0 500Hz
• Frequency range 300Hz – 7kHz
Measured on type 3.2 high leak simulator Product range:
• BR1506L025YN16M: with spring contacts, 16Ω, HAC
• BR1506L025YN32M: with spring contacts, 32Ω
Specifications: Frequency response:
• Dimension 6 x 15 x 2.5 mm • Impedance 16, 32Ω
• Sensitivity 90dB @ 10mW/1cm
• Power ratio 10mW Nom / 30mW Max
• F0 450Hz
• Frequency range 300Hz – 7kHz
Measured on IEC baffle at 10mW, 1cm. 2kHz to 3kHz average
value
Receiver 6x15mm GR1506L020UN32-WPG
Receiver 6x15xmm BR1506L025YN16M
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Product range:
• BR815S15YN32 with spring contacts, HAC
Specifications: Frequency response:
• Dimension 8 x 15 x 1.5mm • Impedance 32Ω
• Sensitivity 89dB @ 10mW/1cm
• Power ratio 10mW Nom / 30mW Max
• F0 300Hz
• Frequency range 200Hz – 7kHz
Measured on IEC baffle at 10mW, 1cm
Receiver 8x15mm BR815S15YN32
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Portfolio: SELTECH micro-size speakers
MICRO-SIZE SPEAKER
MODEL Picture
Dimension (mm)
Impedance (Ω)
Nom./Max power (mW)
SPL* @ 1W/1m
(dB)
Fo* (Hz)
Frequency range (Hz)
CR1609L030BN8
16 x 9 x 3 8 500/800 70,01 900 700 – 10k
GR1511L030UN8
11 x 15 x 3 8 1000/1200 73,5 850 400 – 20k
BR1511L035UN6 Waterproof
11 x 15 x 3.5 6 700/1200 72 900 900 – 5k
GR1511L035UN8
11 x 15 x 3.5 8 700/1000 72 840 400 – 20k
GR1813L025UN8
13 x 18 x 2.5 8 700/1000 75 900 600 – 20k
GO2014… family
14 x 20 x 4 8 500/1000 78 950 500 – 10k
CS13M04YO8 SMD
13 x 13 x 4 8 700/1000 69 850 600 – 20k
CS15M04YO8 SMD
15 x 15 x 4 8 500/800 70 900 550 – 20k
* in typical back volume of 1cc
These are our standard models. For any other requirements (for eg. with cable & connector, paper/ABS sealing gasket, extended temperature range, waterproof, etc.), please contact us at [email protected]
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Product range:
• CR1609L030BN8: with spring contacts Specifications: Frequency response:
• Dimension 16 x 9 x 3mm • Impedance 8Ω
• Sensitivity 70,01dB @ 1W/1m
• Power ratio 500mW Nom / 800 mW Max
• F0 900Hz
• Frequency range 700Hz – 10kHz
Measured on IEC baffle (1cc BV) at 0.5W, 10cm
Product range:
• GR1511L030UN8: with spring contacts Specifications: Frequency response:
• Dimension 11 x 15 x 3mm • Impedance 8Ω
• Sensitivity 73,5dB @ 1W/1m
• Power ratio 1000mW Nom / 1200 mW Max
• F0 400Hz
• Frequency range 400Hz – 20kHz
Measured on IEC baffle (1cc BV) at 1W, 10cm
Speaker 9x16mm CR1609L030BN8
Speaker 11x15mm GR1511L030UN8
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Product range:
• BR1511L035UN6: with solder pads
• BR1511L035UN6-WP: with solder pads, waterproof IPx7
Specifications: Frequency response:
• Dimension 11 x 15 x 3.5mm • Impedance 6Ω
• Sensitivity 72dB @ 1W/1m
• Power ratio 1000mW Nom / 1200mW Max
• F0 900Hz
• Frequency range 900Hz – 5kHz
Measured on IEC baffle (1cc BV) at 0.7W, 3.16cm
Product range:
• GR1511L035UN8: with spring contacts • GR1511L035UN8GDA: with top foam & adhesive gasket Specifications: Frequency response:
• Dimension 11 x 15 x 3.5mm bare speaker • Impedance 8Ω
• Sensitivity 72dB @ 1W/1m
• Power ratio 700mW Nom / 1000mW Max
• F0 520Hz
• Frequency range 400Hz – 20kHz
Measured on IEC baffle (1cc BV) at 0.7W, 10cm
Speaker 11x15mm BR1511L035UN6
Speaker 11x15mm GR1511L035UN8
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Product range:
GR1813L025UN8: with spring contacts Specifications: Frequency response:
• Dimension 13 x 18 x 2.5mm • Impedance 8Ω
• Sensitivity 75dB @ 1W/1m
• Power ratio 700mW Nom / 1000W Max
• F0 380Hz
• Frequency range 600Hz – 20kHz
Measured on IEC baffle (1cc BV) at 0.7W, 10cm
Product range:
• GO2014S4Y8GD with solder pads, top gasket and adhesive
• GO2014L4Y8GD with spring contacts, top gasket and adhesive
• GO2014C4Y8GD-1 with cable and connector, top gasket and adhesive
• GO2014C4Y8GN-1 with cable and connector, top gasket and mesh
Specifications: Frequency response:
• Dimension 14 x 20 x 4mm bare speaker • Impedance 8Ω
• Sensitivity 78dB @ 1W/1m
• Power ratio 500mW Nom. / 1000mW Max
• F0 950Hz
• Frequency range 500Hz – 10kHz
Measured on IEC baffle at 0.1W, 1m
Speaker 13x18mm GR1813L025UN8
Speaker 14x20mm GO2014S4Y8
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Product range:
• CS13M04YO8: SMD Specifications: Frequency response:
• Dimension 13 x 13 x 4mm • Impedance 8Ω
• Sensitivity 69dB @ 1W/1m
• Power ratio 700mW Nom. / 1000mW Max
• F0 850Hz
• Frequency range 600Hz – 20kHz
• Weight 1.1g
Measured on IEC baffle at 0.7W, 10cm
Product range:
• CS15M04YO8: SMD Specifications: Frequency response:
• Dimension 15 x 15 x 4mm • Impedance 8Ω
• Sensitivity 70dB @ 1W/1m
• Power ratio 500mW Nom. / 800mW Max
• F0 900Hz
• Frequency range 550Hz – 20kHz
• Weight 1.5g
Measured on IEC baffle at 0.5W, 10cm
Speaker 13x13mm CS13M04YO8
Speaker 15x15mm CS15M04YO8
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Portfolio: SELTECH loudspeakers (1/2)
LOUDSPEAKER MODEL
Picture Dimension
(mm) Impedance
(Ω) Nom./Max. power (W)
SPL @ 1W/1m
(dB)
Fo (Hz)
Frequency range (Hz)
CC18S05YN4
Ø18 x 5 4 1/1.2 72 350 350 - 5k
SOD00902Y8LCBB1
Ø23 x 4.1 8 0.2 / 0.3 78 550 300 - 10k
WD11903Y8H
Ø28 x 6 8 0.5 / 1 86.5 700 450 – 8k
EC31S09VN4
Ø31 x 9 4 3 / 5 77 250 250 – 20k
SOD02902Y50LCBT /-1
Ø34 x 4.1 8, 50 0.3/0.5 82 450 200 – 17k
SOC34S09XN8/50
Ø34 x 9.5 8, 50 0.5 / 1 82 500 500 – 10k
SOC34H10X50
Ø34 50 0.5 / 1 83 500 500 – 10k
SOC36S05B8-1
Ø36 x 5.8 8 1 / 1.5 78 380 300 – 20k
SOD01621Y25LV
Ø38 x 14.3 25 0.3 / 0.8 80 440 300 – 10k
SOC40S05BN25G-2
Ø40 x 5.2 25 0.3 / 0.5 84 390 390 – 4k
SOC40S09D4 Wideband
Ø40 x 9.5 4 2 / 4 82 350 170 – 15k
SOC40S18D4 Wideband
Ø40 x 18.5 4 2 / 4 75 170 170 – 15k
SOC40S19DN4
Ø40 x 19 4 5 / 10 87 160 160 – 15k
SOC40C22D4-2 Wideband
Ø40 x 22.5 4 1 / 2 78 230 230 – 15k
These are our standard models. For any other requirements (for eg. with cable & connector, paper/ABS gasket, extended temperature range, waterproof, etc.), please contact us at [email protected]
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Portfolio: SELTECH loudspeakers (2/2)
LOUDSPEAKER MODEL
Picture Dimension
(mm) Impedance
(Ω)
Nom./Max. power (mW)
SPL @ 1W/1m
(dB)
Fo (Hz)
Frequency range (Hz)
SOC50… family
Ø50 x 7.9 8, 50 500/800 85 350 350 - 3500
CC50C09AN22
Ø50 x 9 22 0.2 / 0.4 80 500 500 – 5k
SOD20621Y50LH
Ø50 x 16 50 0.3 / 0.8 83 390 300 – 4k
SOD20722Y family
Ø50 x 18.2 25, 50 0.3 / 0.8 87 390 390 – 4k
SOD20722X family
Ø50 x 18.2 4, 8, 25, 50 1 / 2 84 300 300 – 10k
SOC50S24D4 / 8 Wideband
Ø50 x 23.5 4, 8 2 / 4 82 180 180 – 20k
SOC52… family
Wideband
Ø52 x 22.5/26.5/30.5
4 2/ 4 81 160 160 – 12k
SOD2071X…
family
Ø64 x 19.4 8, 50 1 / 2 86.5 400 400 – 3.5k
SOD2071Z…
family
Ø64 x 19.4 8, 25 1 / 2 87 340 340 – 3.5k
CR4020S08ZN8
40 x 20 x 8.4 8 2 / 3 80 650 650 – 6k
SOR4020C08Z4
40 x 20 x 8.4 4 1 / 2 80 700 700 – 10k
SOR4028S16YN8-2
40 x 28.5 x 16 8 3 / 5 77 260 300 – 3k
SOS103S37B8W Waterproof
103 x 103 x 37
8 5 /10 89 450 450 – 5k
These are our standard models. For any other requirements (for eg. with wires, cables & connector, paper/ABS gasket, extended temperature range, waterproof / IP rated, etc.), please contact us at [email protected]
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Product range:
• CC18S05YN4: with solder pads
Specifications: Frequency response:
• Dimension Ø18 x 5mm • Impedance 8Ω
• Sensitivity 78dB @ 1W/1m
• Power ratio 1W Nom. / 1.2W Max
• F0 350Hz
• Frequency range 350Hz – 5kHz
Measured on IEC baffle at 1W, 0.5m
Product range:
• SOD00902Y8LCBB1: with solder pads on external block contact & on backside
Specifications: Frequency response:
• Dimension Ø23 x 4.1mm • Impedance 8Ω
• Sensitivity 78dB @ 1W/1m
• Power ratio 0.2W Nom. / 0.3W Max
• F0 550Hz
• Frequency range 300Hz – 10kHz
• Weight 4.5g
Measured on IEC baffle at 0.1W, 1m
Loudspeaker Ø18mm CC18S05YN4
Loudspeaker Ø23mm SOD00902Y8LCBB1
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Product range:
• WD11903Y8H: with spring contacts, top adhesive and rear pad
• WD11903Y8H-WPDAP: with additional waterproof IPx7 ability
• WD11903Y8HDAPC-5: with also a 65mm cable and Molex connector
Specifications: Frequency response:
• Dimension Ø28 x 6.0mm • Impednce 8Ω • Sensitivity 86.5dB @ 1W/1m • Power ratio 0.5W Nom. • F0 700Hz • Frequency range 450 – 8000Hz • Weight 4.9g
Measured on IEC baffle at 0.1W, 10cm
Product range:
• EC31S09VN4: with solder tags
Specifications: Frequency response:
• Dimension Ø31 x 9 mm • Impedance 4Ω
• Sensitivity 77dB @ 1W/1m
• Power ratio 3.5W Nom. / 5W Max
• F0 250Hz
• Frequency range 250Hz – 20kHz
• Weight 21g
Measured on IEC baffle at 1W, 1m
50
60
70
80
90
100
110
120
100 1000 10000 100000
Frequency [Hz]
dBSPL
HPFS (2403 258 13002)
Loudspeaker Ø31mm EC31S09VN4
Loudspeaker Ø28mm WD11903Y8H
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Product range:
• SOD02902Y50LCBT with solder pads on external block contact & on membrane side
• SOD02902Y50LCBT-1 with 49mm cable + connector
Specifications: Frequency response:
• Dimension Ø34 x 4.1mm • Impedance 50Ω
• Sensitivity 82dB @ 1W/1m
• Power ratio 0.3W Nom. / 0.5W Max
• F0 450Hz
• Frequency range 200Hz – 17kHz
• Weight 5.5g
Measured on IEC baffle at 0.1W, 1m
Product range:
• SOC34S09XN8 with contact lugs
• SOC34S09XN50 with contact lugs
Specifications: Frequency response:
• Dimension Ø34 x 9.5mm • Impedance 8, 50Ω
• Sensitivity 83dB @ 1W/1m
• Power ratio 0.5W Nom. / 1.0W Max
• F0 500Hz
• Frequency range 500Hz – 10kHz
• Weight 8.8g
SOC34S09XN8 measured on IEC baffle at 1W, 1m
Loudspeaker Ø34mm SOD02902Y50LCBT / -1
Loudspeaker Ø34mm SOC34S09XN8 / 50
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Product range:
• SOC34H10X50 with contact lugs
Specifications: Frequency response:
• Dimension Ø34 x 9.5mm • Impedance 50Ω
• Sensitivity 83dB @ 1W/1m
• Power ratio 0.5W Nom. / 1.0W Max
• F0 500Hz
• Frequency range 500Hz – 10kHz
• Weight 8.8g
Measured on IEC baffle at 0.1W, 1m
Product range:
• SOC36S05B8-1 with solder tags and front blue ABS gasket
Specifications: Frequency response:
• Dimension Ø36 x 5.8mm • Impedance 8Ω
• Sensitivity 78dB @ 1W/1m
• Power ratio 1W Nom. / 1.5W Max
• F0 380Hz
• Frequency range 300Hz – 20kHz
• Weight 9.5g
Measured on IEC baffle at 0.1W, 1m
Back
Loudspeaker Ø34mm SOC34H10X50
Loudspeaker Ø36mm SOC36S05B8-1
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Product range:
• SOD01621Y25LV with telecom plastic membrane and vertical solder tags
Specifications: Frequency response:
• Dimension Ø38 x 14.3mm • Impedance 25Ω
• Sensitivity 80dB @ 1W/1m
• Power ratio 0.3W Nom. / 0.8W Max
• F0 440Hz
• Frequency range 300Hz – 10kHz
• Weight 24g
Measured on IEC baffle at 0.1W, 1m
Product range:
• SOC40S05BN25G-2 with solder pads and front paper gasket
Specifications: Frequency response:
• Dimension Ø40 x 5.2mm
• Impedance 25Ω
• Sensitivity 84dB @ 1W/1m
• Power ratio 0.3W Nom. / 0.5W Max
• F0 390Hz
• Frequency range 390Hz – 4kHz
• Weight 9g
Measured on IEC baffle at 0.25W, 0.5m
Loudspeaker Ø40mm SOC40S05BN25G-2
Loudspeaker Ø38mm SOD01621Y25LV
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Product range:
• SOC40S09D4 with solder tags Specifications: Frequency response:
• Dimension Ø40 x 9.5mm • Impedance 4Ω
• Sensitivity 82dB @ 1W/1m
• Power ratio: 2W Nom. / 4W Max
• F0 350Hz
• Frequency range 170Hz – 15kHz
• Weight 18g
Measured on IEC baffle at 1W, 1m
Product range:
• SOC40S18D4 with solder tags
• SOC40W18DN4 with wires
Specifications: Frequency response:
• Dimension Ø40 x 18.5mm • Impedance 4Ω
• Sensitivity 75dB @ 1W/1m
• Power ratio 2W Nom. / 4W Max
• F0 170Hz
• Frequency range 180Hz – 15kHz
• Weight 36g
Measured on IEC baffle at 0.25W, 0.5m
Loudspeaker Ø40mm SOC40S09D4
Loudspeaker Ø40mm SOC40S18D4
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Product range:
• SOC40S19DN4 with solder tags
Specifications: Frequency response:
• Dimension Ø40 x 19mm • Impedance 4Ω
• Sensitivity 87dB @ 1W/1m
• Power ratio 5W Nom. / 10W Max
• F0 160Hz
• Frequency range 160Hz – 15kHz
• Weight 38g
Measured on IEC baffle at 1W, 0.5m
Product range:
• SOC40C22D4: with 130mm cable & PHR-2 connector
Specifications: Frequency response:
• Dimension Ø40 x 22.5mm • Impedance 4Ω
• Sensitivity 78dB @ 1W/1m
• Power ratio 1W Nom. / 2W Max
• F0 230Hz
• Frequency range 230Hz – 15kHz
• Weight 45g
Measured on IEC baffle at 1W, 0.5m
Loudspeaker Ø40mm SOC40S19DN4
Loudspeaker Ø40mm SOC40C22D4-2
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Product range:
• SOC50S07Y50 with solder pads, low F0
• SOC50S07Y50-1 with solder pads • SOC50C07Y50 low F0 version with 150mm cable & PHR-2 connector
Specifications: Frequency response:
• Dimension Ø50 x 7.9mm • Impedance 50Ω
• Sensitivity 85dB @ 1W/1m
• Power ratio: 0.5W Nom. / 0.8W Max
• F0 300 / 380Hz
• Frequency range 300 / 380Hz – 3.5kHz
• Weight 11g
Measured on IEC baffle at 0.1W, in 1m
Product range:
• CC50C09AN22 with 100mm cable and AMP280358 connector
Specifications: Frequency response:
• Dimension Ø50 x 9mm • Impedance 22Ω
• Sensitivity 80dB @ 1W/1m
• Power ratio 0.2W Nom. / 0.4W Max
• F0 500Hz
• Frequency range 500Hz – 5kHz
Measured on IEC baffle at 0.1W, 0,1m
Loudspeaker Ø50mm CC50C09AN22
Loudspeaker Ø50mm flat SOC50…
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Product range:
SOD20621Y50LH: with telecom band plastic membrane and horizontal solder tags
Specifications: Frequency response:
• Dimension Ø50 x 16mm • Impedance 50Ω
• Sensitivity 83dB @ 1W/1m
• Power ratio 0.3W Nom. / 0.8W Max
• F0 390Hz
• Frequency range 300Hz – 10kHz
• Weight 30g
Measured on IEC baffle at 0.1W, 1m
Product range:
SOD20722Y25LVC: with telecom plastic membrane, with 85mm wires
SOD20722Y50 LH/LV: with horizontal / vertical solder tags
SOD20722Y50LV-R1: with rubber adapter ring Ø53mm
Specifications: Frequency response:
• Dimension Ø50 x 18.2mm • Impedance 25, 50Ω
• Sensitivity 87dB @ 1W/1m
• Power ratio 0.3W Nom. / 0.8W Max
• F0 390Hz
• Frequency range 390Hz – 4kHz
• Weight 47g
SOD20722Y50LH measured on IEC baffle at 0.1W, 1m
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Loudspeaker Ø50mm SOD20621Y50LH
Loudspeaker Ø50mm SOD20722Y...
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Product range:
SOD20722X 4/8/25 CH: with compound plastic membrane & horizontal solder tags
SOD20722X 8/25/50 CV: with vertical solder tags
SOD20722X8CHCRP: with Ø53mm rubber adapter ring & rear foam pad
SOD20722X8CV-CR: with 60mm cable & PHR-2 connector
SOD20722X8CVC: with 85mm wires
SOD20722X 4/8 CVT-CC: with temp. range -40 to +85°C, cable & connector
Specifications: Frequency response:
• Dimension Ø50 x 18.2mm • Impedance 4, 8, 25, 50Ω
• Sensitivity 84dB @ 1W/1m
• Power ratio 1W Nom. / 2W Max
• F0 300Hz
• Frequency range 300Hz – 10kHz
• Weight 47g
SOD20722X8CH measured on IEC baffle at 0.1W, 1m
Product range:
SOC50S24D 4/8: with wideband paper membrane and solder tags
SOC50C24D4G-2: with 110mm cable, PHR-2 connector & 52mm rubber ring
SOC50C24D8R: with 75mm cable, PHR-2 connector & 52mm rubber adaptor ring
SOC50C24D8G-4: with 80mm cable, GHR-03V-S connector & front gasket
SOC50C24D8G-1: with 200mm cable, PHR-2 connector & front gasket
Specifications: Frequency response:
• Dimension Ø50 x 24.8mm • Impedance 4, 8Ω, • Sensitivity 82dB @ 1W/1m
• Power ratio 2W Nom. / 4W Max
• F0 180Hz
• Frequency range 180Hz – 20kHz
• Weight 78.5g
SOC50S24D8G measured on IEC baffle at 1W, 0.5m
Loudspeaker Ø50mm SOD20722X…
Loudspeaker Ø50mm SOC50S24D4/8
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Product range:
SOC52S22DN4: NdFeb magnet , paper membrane and solder tags
SOC52S26D4: NdFeb magnet
SOC52S30D4: Ferrite magnet
Specifications: Frequency response:
• Dimension Ø52 x 22.5/26.5/30.5mm • Impedance 4Ω
• Sensitivity 81dB @ 1W/1m
• Power ratio 2W Nom. / 4W Max
• F0 160Hz
• Frequency range 160Hz – 12kHz
SOC52S30D4 measured on IEC baffle at 1W, 1m
Product range:
• SOD2071X 8/50: with plastic membrane and horizontal solder tags
• SOD2071X8C1P: with 46mm cable, PHR-2 connector & rear foam pad
Specifications: Frequency response:
• Dimension Ø64 x 19.4mm • Impedance 8, 50Ω
• Sensitivity 86.5dB @ 1W/1m
• Power ratio 1W Nom. / 2W Max
• F0 400Hz
• Frequency range 400Hz – 3.5kHz
• Weight 50g
SOD2071X8C1P measured on IEC baffle at 1W, 1m
Loudspeaker Ø52mm SOC52…
Loudspeaker Ø64mm SOD2071X…
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Product range:
• SOD2071Z 8/25: with paper membrane and vertical solder tags
Specifications: Frequency response:
• Dimension Ø64 x 19.4mm • Impedance 8, 50Ω
• Sensitivity 87dB @ 1W/1m
• Power ratio 1W Nom. / 2W Max
• F0 340Hz
• Frequency range 340Hz – 3.5kHz
• Weight 50g
Measured on IEC baffle at 1W, 1m
Product range:
• CR4020S08ZN8F: with solder tags & screw holes
Specifications: Frequency response:
• Dimension 40 x 20 x 8.4mm • Impedance 8Ω
• Sensitivity 80dB @ 1W/1m
• Power ratio 2W Nom. / 3W Max
• F0 650Hz
• Frequency range 650Hz – 6kHz
• Weight 7g
Measured on IEC baffle at 1W, 0.5m
Loudspeaker Ø64mm SOD2071Z…
Loudspeaker 40x20mm CR4020S08ZN8F
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Product range:
• SOR4020C08Z4: with 250mm cable, PHR-2 connector & screw holes
Specifications: Frequency response:
• Dimension 40 x 20 x 8.4mm • Impedance 4Ω
• Sensitivity 80dB @ 1W/1m
• Power ratio 1W Nom. / 2W Max
• F0 600Hz
• Frequency range 600Hz – 10kHz
• Weight 7.2g
Measured on IEC baffle at 1W, 0.5m
Product range:
SOR4028S16YN8-2: with solder tags & screw holes
Specifications: Frequency response:
• Dimension 40 x 28 x 16mm • Impedance 8Ω
• Sensitivity 77dB @ 1W/1m
• Power ratio 3W Nom. / 5W Max
• F0 300Hz
• Frequency Range 300Hz – 3kHz
• Weight 25g
Measured on IEC baffle at 1W, 0.5m
Loudspeaker 40x20mm SOR4020C08Z4
Loudspeaker 40x28mm SOR4028S16YN8-2
Back
www.seltech-international.com 29
Product range:
• SOS103S37B8W: with mylar membrane, solder pads and IP65 rating
Specifications: Frequency response:
• Dimension 103 x 103 x 37mm • Impedance 8Ω
• Sensitivity 89dB @ 1W/1m
• Power ratio 5W Nom. / 10W Max
• F0 450Hz
• Frequency range 450Hz – 5kHz
• Weight 290g
Measured on IEC baffle at 1W, 1m
Loudspeaker 103x103mm SOS103S37B8W
Back
www.seltech-international.com 30 Table of contents
Speaker boxes Small back volume, Rub & Buzz, and Distortion are the challenges often encountered during speaker integrations. To help customers overcome these acoustic issues, Seltech has strengthened its capabilities and its dedicated engineering team in order to support the integration of standard and customized speaker boxes. Why use a speaker box?
Fixed closed back volume: Because a speaker is very sensitive to its environment, the fixed back volume of the box will ensure the consistency of the speaker performance and will avoid Larsen effect on microphone.
Optimized acoustic design: Via simulation and prototyping, Seltech can propose the best design of the acoustic solution taking performance and space limitations into account.
Reliable quality control: Precise equipment and trained personnel will measure and control each speaker box to ensure its performance and quality.
Easier integration: A speaker box is always easier to integrate than a core speaker due to its robustness and its adapted connectivity.
The level of customization of Seltech’s speaker boxes is high and adapted to each customer’s requirements:
Many shapes possible: square, curved, high complexity, low profile… Many kinds of connectivity: cables, connectors, inserted molding, pogo pins… Many speakers: Seltech has a wide range of core speaker types adapted to each situation Many features: N’Bass integrated, amplifier integrated…
Our speaker boxes are used in many applications such as :
Smartphones
Standard / Rugged tablets
Notebooks
e-readers / e-books
Navigation devices
Portable meters
etc. If you have space limitations, loudness requirements and integration issues, please send us your project. Our dedicated team can adapt to your planning and provide you the optimized speaker box based on your needs.
www.seltech-international.com 31 Table of contents
Portfolio: SELTECH standard speaker boxes
Below, examples of standard speaker boxes that we provide:
SPEAKER BOX
MODEL 3D picture Description
Dimensions (mm)
Impedance (Ω)
Nom./Max. power
per channel
(mW)
SPL @1W/1
m (dB)
Fo (Hz)
Frequency range (Hz)
BOX1-13102-B
Speaker box with 1 x speaker Donau
11x15x3.5mm and cables
12 x 40 x 4 8 500/1000 68 800 700 - 7000
BOX1-13102-2B
Speaker box with 1 x speaker Cobra
11x15x3.5mm and cables
12 x 40 x 4 6 700/1000 66 1000 800 - 5000
BOX1-13102-7
Speaker box with 1 x speaker Cobra
11x15x3.5mm and PCB 12 x 40 x 4 6 700/1000 74 850 700 - 20000
BOX13101-xx
Speaker box with 2 x speakers Donau
11x15x3.5mm and cables
12.5 x 70 x 5 8 500/1000 67.5 890 700 - 5000
BOX14011
Speaker box with 2 x speakers Donau
11x15x3.5mm and cables
12.5 x 70 x 5 8 500/1000 67.5 825 700 - 5000
BOX13091
Speaker box done via PCB layer with 1 x
speaker Donau 11x15x3.5mm
15.6 x 40.6 x 5.74
8 350/500 73 800 700 - 16000
BOX10051
Speaker box with 2 x speakers Donau
11x15x3.5mm and with cables & connector
20 x 45 x 8 8 500/1000 77 800 800 - 10000
BOX1-11051
Speaker box with 1 x speaker Donau
11x15x3.5mm and cables & connector
34 x 13.8 x 6 8 350/500 73 800 650 - 16000
*) These speaker boxes are not recommended for new designs
The choice of micro-size speaker integrated into the speaker box is defined by:
the customer requirements
the application (space constraints, audio performances needed)
and the time to market The connection type of most of our standard speaker boxes is cables and connector for easy integration. The types of cables and connectors are defined together with the customer. Otherwise, Seltech is using its own standards For more information on our standard speaker boxes, please do not hesitate to contact us at [email protected]
www.seltech-international.com 32 Table of contents
Portfolio: SELTECH customized speaker boxes
Below, examples of customized speaker boxes that we presently supply:
SPEAKER BOX
MODEL 3D picture Description
Dimensions (mm)
Impedance (Ω)
Nom./Max. power
per channel
(mW)
SPL @1W/1
m (dB)
Fo (Hz)
Frequency range (Hz)
BOX14013 (with black housing)
Speaker box with 1 x speaker Cobra
11x15x3.5mm and cables
12.85 x 53.55 x 6.5
6 700/1000 74 850 700 - 20000
BOX14013-2 (with white housing)
Speaker box with 1 x speaker Cobra
11x15x3.5mm and cables
12.85 x 53.55 x 6.5
6 700/1000 74 850 700 – 20000
BOX1-14092
Speaker box with 1 x speaker Cobra 11x15x3.5mm
14 x 36.9 x 7.59
6 700/1000 74 850 700 – 20000
BOX12101
Speaker box with 1 x speaker Donau
11x15x3.5mm, gasket and pogo pins
15.1 x 30 x 13.2
8 350/500 73 850 700 - 16000
BOX13094
Speaker box with 2 x speaker Donau
11x15x3.5mm and 11.15mm Flex PCB
20.7 x 39.62 x 8.8
8 350/500 73 800 650 - 16000
BOX13094-2
Speaker box with 2 x speaker Donau
11x15x3.5mm and 50.25mm Flex PCB
20.7 x 39.62 x 8.8
8 350/500 73 800 650 – 16000
BOX2-13094-3
Speaker box with 2 x speaker Donau
11x15x3.5mm and 15.58mm Flex PCB
20.7 x 39.42 x 7.84
8 350/500 73 800 600 - 16000
*) These speaker boxes are not recommended for new designs
You need a customized speaker box, please feel free to contact us at [email protected]. Our dedicated engineering team will support you from design to production.
www.seltech-international.com 33 Table of contents
Add-on acoustic solutions If you are looking for high quality and cost effective customizable acoustic products, you reached the right partner! Seltech can build customized assemblies and offers many value added services to meet your acoustic requirements. Why use a gasket?
Acoustic sealing between the front and the back volume of the acoustic product
Optimized protection against vibrations, shocks etc. Easier integration to compensate the mechanical tolerances
Why use a mesh?
Optimized sound performance: the mesh can optimize the sound performance by improving the frequency response.
Better protection: the mesh has another important function which is to protect micro-size speaker from dust and any other particles which can affect its performances and life time.
Why add cables and connector?
Flexible connection to the PCB : as the integration of an acoustic product can be complex, cables and connector can allow more flexibility of design
Easy handling during mass production
Seltech offers high quality and cost effective services to customize micro-size speakers, dynamic receivers, loudspeakers and any acoustic products to perfectly fit your application, for example by adding:
Wires Wires and connector Acoustic mesh (IP rated or not) Single/double adhesive foil Gasket (paper, foam, ABS, various thickness and shapes etc.)
OR doing assemblies like connecting 2 micro-size speakers with wires and connector Depending on your requirements, we can do complete or part of design works for customers. Bring us your custom request, and we will make it “live” through our organization.
www.seltech-international.com 34 Table of contents
Portfolio: SELTECH add-ons (1/2)
Below, examples of basic add-ons we supply for dynamic receivers:
ADD-ON MODEL
3D picture Description Dimensions
(mm)
Impedance
(Ω)
Nom./Max. power
per channel
(mW)
SPL* @ 1W/1m(
dB)
Fo (Hz)
Frequency range (Hz)
RA6X12X2C-2
Receiver Lean 6x12x2mm with cables
& connector 6 x 12 x 2 32 10/75 65 350 300 - 7000
RA6x12x2DA
Receiver Lean 6x12x2mm with double
adhesive foil 6 x 12 x 2.1 32 10/75 65 350 300 - 7000
RA6X12X2GDA-2
Receiver Lean 6x12x2mm with gasket and double adhesive
foil
6 x 12 x 2.69 32 10/75 65 350 300 - 7000
KR15R60L20X32MDA
Receiver Franklin 6x15x2mm with mesh and double adhesive
foil
6 x 15 x 2.25 32 20/50 71 400 300 - 7000
RA6x15x2.5HACW
Receiver Julia HAC 6x15x2.5mm with
cables 6 x 15 x 2.5 16 20/50 60 450 400 - 4000
RA6X15JULIAGDAR
Receiver Julia 6x15x2.5mm with
gasket, double adhesive foil and rear
insulating pad
6 x 15 x 2.5 32 20 70 450 400 – 4000
RA6X15GDA
Receiver Julia 6x15x2.5mm with
gasket 6 x 15 x 3.06 32 20/50 70 450 400 - 4000
*) These add-on solutions are not recommended for new designs
Whatever your request on add-on (gasket, acoustic mesh, adhesive foil, cables & connector etc.), please feel free to contact us at [email protected]
www.seltech-international.com 35 Table of contents
Portfolio: SELTECH add-ons (2/2)
Below, examples of basic add-ons we supply for dynamic speakers:
ADD-ON MODEL
3D picture Description Dimensions
(mm)
Impedance
(Ω)
Nom./Max. power
per channel
(mW)
SPL* @ 1W/1m(
dB)
Fo (Hz)
Frequency range (Hz)
RA11X15X3DSLIMDA
Speaker Donau slim 11x15x3mm with
double adhesive foil 11 x 15 x 3 8 600/1200 73 800
700 – 20000
KR15P110C35Y6WGMDA-2
Speaker Cobra 11x15x3.5mm with
gasket, double adhesive foil and wire
assembly
11 x 15 x 3.5 6 700/1000 73 650 500 – 16000
RA11X15COBRAGDA
Speaker Cobra 11x15x3.5mm with gasket and double
adhesive foil
11 x 15 x 4.19
6 700/1000 74 850 700 - 20000
RA11X15X350GDA-3
Speaker Donau 11x15x3.5mm with gasket and double
adhesive foil
11 x 15 x 4.19
8 350/500 73 750 650 - 16000
RA11X15X350GDAM
Speaker Donau 11x15x3.5mm with gasket, mesh and
double adhesive foil
11 x 15 x 4.25
8 350/500 73 750 650 - 16000
RA11X15X350WGDA-1
Speaker Donau 11x15x3.5mm with
gasket, double adhesive foil and
cables
11 x 15 x 4.19
8 350/500 73 750 650 - 16000
RA11x15x350GDARI
Speaker Donau 11x15x3.5mm with
gasket, double adhesive foil and insulating sheet
11 x 15 x 4.16
8 350/500 73 750 650 - 16000
*) These add-on solutions are not recommended for new designs
Whatever your request on add-on (gasket, acoustic mesh, adhesive foil, cables & connector etc.), please feel free to contact us at [email protected]
www.seltech-international.com 36 Table of contents
MEMS microphones
Most of the Audio applications using loudspeakers uses also Microphones
and heretoo Seltech is global provider of Knowles SiSonic™ MEMS microphones. Knowles SiSonic™ MEMS microphones are designed with leading MEMS technology for stable acoustic performance under extreme conditions such as high temperature, shock and vibration.
Knowles SiSonic™ MEMS microphones are:
Omnidirectionnal
Surface Mount Devices (SMD)
with operating & storage temperature range from -40 °C to +100 °C
with either Analog or Digital output
with different RF immunity levels (standard, enhanced and maximum)
Knowles SiSonic™ MEMS microphones are available with either Top or Bottom sound port:
Top sound port: Bottom sound port:
The MEMS microphones with Bottom sound port (also called Zero Height Mic™) can shrink product thickness by up to 30%! They minimize the distance between PCB and device housing, enabling the very thin, high-density product designs. Knowles SiSonic™ MEMS microphones have integrated RF protection to help prevent RF noise from getting into the acoustic signal. Maximum RF protection is obtained with metal-can packaging and a RF filtering built into the CMOS IC. New generation of Knowles Digital SiSonic
TM MEMS Microphones offers enables “always-on” voice trigger
solutions at ultra-low power. Using the VoiceIQTM
adaptive engine, they allow the entire audio chain to remain in sleep mode, commanding it to wake-up only when acoustic activity is detected. First model of this Intelligent Audio VoiceIQ
TM family is named IA200.
Knowles SiSonic™ MEMS microphones are available with different package sizes:
Knowles’ state-of-art MEMS microphones are used in various applications such as cell phones, digital cameras, portable music players, smart phones, laptop computers, sensors, digital and other portable electronic devices.
www.seltech-international.com 37 Table of contents
Portfolio: KNOWLES Digital MEMS microphones
MEMS MIC MODEL
Picture Digital
interface Dimensions
(mm) Sound
port
Sensitivity @1kHz (Note1)
SNR (dBA) (Note1)
Comments
IA200
PDM 3.50 x 2.65
x 0.98 Bottom -26.0±1 65
Always-On Listening / Voice IQ
IA201
PDM 3.50 x 2.65
x 0.98 Bottom -26.0±1 65
Always-On Listening / Voice IQ
/ CSR867x
SPG0660LM4H
PDM 4.00 x 2.00
x 0.80 Bottom -26.0±3 63.5
Very narrow Note2
SPH0641LM4H-1
PDM 3.50 x 2.65
x 0.98 Bottom -26.0±1 64.3
Multi-mode / High SNR
SPH0641LU4H-1
PDM 3.50 x 2.65
x 0.98 Bottom -26.0±1 64.3
Multi-mode / Ultrasonic
SPH0644HM4H-1
PDM 3.50 x 2.65
x 0.85 Top -36.0±1 58 Multi-mode
SPH0644LM4H-1
PDM 3.50 x 2.65
x 0.98 Bottom -37.0±1 65.5
Multi-mode / High SNR
SPH1668LM4H-1
PDM 3.50 x 2.65
x 0.98 Bottom -29.0±1 65.5
Multi-mode / High SNR
SPH0645LM4H
I2S 3.50 x 2.65
x 0.98 Bottom -26.0±3 65
Multi-mode / High SNR
SPK0415HM4H
PDM 4.00 x 3.00
x 1.06 Top -26.0±3 61 Multi-mode
SPK0641HT4H-1
PDM 4.00 x 3.00
x 1.00 Top -26.0±1 64.5
Multi-mode / High SNR
SPK0833LM4H
PDM 4.00 x 3.00
x 1.00 Bottom -26.0±3 63 Note2
SPK0838HT4H
PDM 4.00 x 3.00
x 1.00 Top -26.0±3 64
Multi-mode / Flat freq. response
SPK1638LM4H
PDM 4.00 x 3.00
x 1.00 Bottom -26.0±3 64.5
Multi-mode / High SNR
SPM0423HM4H
PDM 4.72 x 3.76
x 1.25 Top -26.0±3 56 Note2
SPM1423HM4H
PDM 4.72 x 3.76
x 1.25 Top -22.0±3 61.5 Note2
SPM0437HD4H
PDM 4.72 x 3.76
x 1.25 Top -26.0±3 57.5 Note2
SPM1437HM4H
PDM 4.72 x 3.76
x 1.25 Top -22.0±3 61.5 Note2
All Knowles’ MEMS Microphones are Omnidirectionnal and Surface Mounted Devices (SMD) with operating & storage temperature range from -40°C to +100°C. Standard sensitivity tolerance is +/-3 dB. Some models exist with sensitivity tolerance of +/-1 dB and their part number terminates with -1. Note1: SNR: 94dB SPL@1kHz, A-weighted; Sensitivity (S): @1kHz (dB FS/1Pa) Note2: These MEMS microphones are not recommended for new designs as they can be replaced by new models with better performances
An evaluation kit called KAS-33100-002 is available to easily evaluate Knowles MEMS microphones. For more info, please click here. Seltech offers MEMS microphone gaskets to achieve optimal acoustic performance in MEMS microphones. For more info, please click here. Values in the document are typical values unless other indication.
www.seltech-international.com 38 Table of contents
Portfolio: KNOWLES Analog MEMS microphones
MEMS MIC MODEL
Picture Gain Dimensions
(mm) Sound
port
Sensitivity @1kHz (Note1)
SNR (dBA) (Note1)
Comments
SPA2410LR5H
Unity Gain 3.35 x 2.50 x
0.98 Bottom -38.0±3 63 Note2
SPA2629LR5H
Unity Gain 3.35 x 2.50 x
0.98 Bottom -38.0±3 65
SPH0611LR5H-1
Unity Gain 3.50 x 2.65 x
0.98 Bottom -38.0±1 65 Note2
SPH1611LR5H-1
Unity Gain 3.50 x 2.65 x
0.98 Bottom -38.0±1 65
SPH0642HT5H-1
Unity Gain 3.50 x 2.65 x
1.00 Top -38.0±1 65 Note2
SPH1642HT5H-1
Unity Gain 3.50 x 2.65 x
1.00 Top -38.0±1 65
SPM0408LE5H
Amplified
(0-20dB) 4.72 x 3.76 x
1.25 Bottom -18.0±3 63
SPM0404HE5H
Unity Gain 4.72 x 3.76 x
1.25 Top -42.0±3 59 Note2
SPQ0410HR5H
Unity Gain 3.76 x 2.24 x
1.10 Top -42.0±3 59 Note2
SPQ1410HR5H
Unity Gain 3.76 x 2.24 x
1.10 Top -42.0±3 59
SPU0410LR5H SPU0410LR5H-1
Unity Gain 3.76 x 3.00 x
1.10 Bottom
-38.0±3 -38.0±1
63 Ultrasonic
sensor Note2 for -1
SPU1410LR5H
Unity Gain 3.76 x 3.00 x
1.10 Bottom -38.0±3 63
Low Freq. Sensor
SPU0410HR5H SPU0410HR5H-1
Unity Gain 3.76 x 2.95 x
1.10 Top
-42.0±3 -42.0±1
59 Note2 for -1
SPU0414HR5H
Amplified
(0-20dB) 3.76 x 2.95 x
1.10 Top -22.0±3 59
SPU0442HR5HT-1
Unity Gain 3.76 x 2.95 x
1.10 Top -42.0±1 59
Square port hole + tape
SPUL409HE5H
Unity Gain 3.76 x 2.95 x
1.10 Top -42.0±3 59 Note2
SPV0840LR5H
Unity Gain 2.75 x 1.85 x
0.90 Bottom -38.0±3 62.5 Note2
SPV0842LR5H-1
Unity Gain 2.75 x 1.85 x
0.90 Bottom -38.0±1 62.5
SPV1840LR5H
Unity Gain 2.75 x 1.85 x
0.90 Bottom -38.0±3 62.5
SPW2430HR5H
Analog Unity Gain
3.10 x 2.50 x 1.00
Top -42.0±3 59
SPW0442HR5H-1
Analog Unity Gain
3.10 x 2.50 x 1.00
Top -42.0±1 59
All Knowles’ MEMS Microphones are Omnidirectionnal and Surface Mounted Devices (SMD) with operating & storage temperature range from -40°C to +100°C. Standard sensitivity tolerance is +/-3 dB. Some models exist with sensitivity tolerance of +/-1 dB and their part number terminates with -1. Note1: SNR: 94dB SPL@1kHz, A-weighted; Sensitivity (S): @1kHz (dB V/1Pa) Note2: These MEMS microphones are not recommended for new designs as they can be replaced by new models with better performances
An evaluation kit called KAS-33100-002 is available to easily evaluate Knowles MEMS microphones. For more info, please click here. Seltech offers MEMS microphone gaskets to achieve optimal acoustic performance in MEMS microphones. For more info, please click here. Values in the document are typical values unless other indication.
www.seltech-international.com 39
"3.50 x 2.65 x 0.98" Digital Bottom port microphone Multi-mode/“always-on” voice trigger solutions (VoiceIQ
TM):
Electrical specifications:
Sensitivity Range: -26±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 65dB(A) (Normal/Standard)
61.5dB(A) (“Always Listening”)
AOP: 121 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 900µA,
260µA (“Always Listening”), 65µA (Sleep)
Clock Frequency: 768kHz (Always Listening Mode)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 STATUS/CLOCK (I/O)
3 GROUND (GND)
4 CLOCK INPUT (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
"3.50 x 2.65 x 0.98" Digital Bottom port microphone Multi-mode/“always-on” voice trigger solutions (VoiceIQ
TM) with CSR867x:
Electrical specifications:
Sensitivity Range: -26±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 65dB(A) (Normal/Standard)
60dB(A) (“Always Listening”)
AOP: 120 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 900µA,
260µA (“Always Listening”), 65µA (Sleep)
Clock Frequency: 512kHz (Always Listening Mode)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 STATUS/CLOCK (I/O)
3 GROUND (GND)
4 CLOCK INPUT (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
IA201
IA200
Back
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"4.00 x 2.00 x 0.80" Digital Bottom port microphone in very narrow package: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 63.5dB(A)
AOP: 120.5 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 580µA,
4µA (Sleep mode)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 POWER (VDD)
3 CLOCK (CLK)
4 SELECT
5 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 2.00
HEIGHT (H) 0.80
ACOUSTIC PORT (AP) 0.25
"3.50 x 2.65 x 0.98" Digital Bottom port microphone with Multi-mode function (Normal / Low Power / Sleep): Electrical specifications:
Sensitivity Range: -26±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 64.3dB(A)
AOP: 120 dB SPL
Supply Voltage: 1.62 – 3.6V
Current drawn: 620µA (Normal),
235µA (Low Power), 80µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
SPG0660LM4H
Back
SPH0641LM4H-1
www.seltech-international.com 41
"3.50 x 2.65 x 0.98" Digital Bottom port microphone with Multi-mode function and Ultrasonic support: Electrical specifications:
Sensitivity Range: -26±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 64.3dB(A)
AOP: 120 dB SPL
Supply Voltage: 1.62 – 3.6V
Current drawn: 620µA (Normal),
235µA (Low Power), 80µA (Sleep), 845µA (Ultrasonic)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
"3.50 x 2.65 x 0.85" Digital Top port microphone with Multi-mode function (Normal / Low Power / Sleep): Electrical specifications:
Sensitivity Range: -36±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 58dB(A)
AOP: 131 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 925µA (Normal),
255µA (Low Power), 80µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 CLOCK (CLK)
3 PDM OUTPUT (DATA)
4 GROUND (GND)
5 SELECT
6 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.85
ACOUSTIC PORT (AP) 0.50
SPH0641LU4H-1
SPH0644HM4H-1
Back
www.seltech-international.com 42
"3.50 x 2.65 x 0.98" Digital Bottom port microphone with Multi-mode function (Normal / Low Power / Sleep): Electrical specifications:
Sensitivity Range: -37±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 65.5dB(A)
AOP: 132.5 dB SPL
Supply Voltage: 1.62 – 3.6V
Current drawn: 1130µA (Normal – F Clock = 3.072MHz),
255µA (Low Power), 80µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
"3.50 x 2.65 x 0.98" Digital Bottom port microphone with Multi-mode function and low current consumption:
Electrical specifications:
Sensitivity Range: -29±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 65.5dB(A)
AOP: 122 dB SPL
Supply Voltage: 1.62 – 3.6V
Current drawn: 626µA,
236µA (Low power) 100µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
SPH0644LM4H-1
SPH1668LM4H-1
Back
www.seltech-international.com 43
"3.50 x 2.65 x 0.98" Digital Bottom port microphone with I2S output and Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: I2S
S/N Ratio: 65dB(A)
AOP: 120 dB SPL
Supply Voltage: 1.62 – 3.6V
Current drawn: 600µA (Normal)
< 10µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 WORD STROBE (WS)
2 SELECT (L/R)
3 GROUND (GND)
4 BIT CLOCK (BCLK)
5 POWER (VDD)
6 I2S OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP) 0.325
"4.00 x 3.00 x 1.06" Digital Top port microphone with Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 61dB(A)
AOP: 122 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: < 650µA,
25µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 SELECT
3 CLOCK (CLK)
4 PDM OUTPUT (DATA)
5 GROUND (GND)
6 GROUND (GND)
7 GROUND (GND)
8 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 3.00
HEIGHT (H) 1.06
ACOUSTIC PORT (AP)
0.65
SPK0415HM4H
SPH0645LM4H
Back
www.seltech-international.com 44
"4.00 x 3.00 x 1.00" Digital Top port microphone with Multi-mode function (Normal / Low Power / Sleep): Electrical specifications:
Sensitivity Range: -26±1dBFS
Data Format: ½ cycle PDM
S/N Ratio: 64.5dB(A)
AOP: 120 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: < 630µA, 230µA (Low Power), 26µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 CLOCK (CLK)
3 SELECT
4 POWER (VDD)
5 GROUND (GND)
6 GROUND (GND)
7 GROUND (GND)
8 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 3.00
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.25
"4.00 x 3.00 x 1.00" Digital Bottom port microphone and Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 63dB(A)
AOP: 122 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 500µA,
4µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 PDM OUTPUT (DATA)
3 CLOCK (CLK)
4 SELECT
5 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 3.00
HEIGHT (H) 1.00
ACOUSTIC PORT (AP) 0.25
SPK0641HT4H-1
SPK0833LM4H
Back
www.seltech-international.com 45
"4.00 x 3.00 x 1.00" Digital Top port microphone with High SNR and Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 64dB(A)
AOP: 121 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 500µA,
4µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 PDM OUTPUT (DATA)
2 CLOCK (CLK)
3 SELECT
4 POWER (VDD)
5 GROUND (GND)
6 GROUND (GND)
7 GROUND (GND)
8 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 3.00
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.25
"4.00 x 3.00 x 1.00" Digital Bottom port microphone with high SNR and Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 64.5dB(A)
AOP: 122 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 460µA,
6µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 PDM OUTPUT (DATA)
3 CLOCK (CLK)
4 SELECT
5 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.00
WIDTH (W) 3.00
HEIGHT (H) 1.00
ACOUSTIC PORT (AP) 0.25
SPK0838HT4H
Back
SPK1638LM4H
www.seltech-international.com 46
"4.72 x 3.76 x 1.25" Digital Top port microphone with Sleep-mode function: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 56dB(A)
AOP: >115 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 500µA,
25µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 PDM OUTPUT (DATA)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP) 0.84
"4.72 x 3.76 x 1.25" Digital Top port microphone with Sleep-mode function: Electrical specifications:
Sensitivity Range: -22±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 61.5dB(A)
AOP: 115 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 500µA,
25µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 PDM OUTPUT (DATA)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP)
0.84
SPM1423HM4H
Back
SPM0423HM4H
www.seltech-international.com 47
"4.72 x 3.76 x 1.25" Digital Top port microphone with Sleep-mode: Electrical specifications:
Sensitivity Range: -26±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 57.5dB(A)
AOP: 119 dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 380µA,
6µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 PDM OUTPUT (DATA)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP)
0.84
"4.72 x 3.76 x 1.25" Digital Top port microphone with Sleep-mode function: Electrical specifications:
Sensitivity Range: -22±3dBFS
Data Format: ½ cycle PDM
S/N Ratio: 61.5dB(A)
AOP: 117dB SPL
Supply Voltage: 1.6 – 3.6V
Current drawn: 380µA,
6µA (Sleep)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 SELECT
3 GROUND (GND)
4 CLOCK (CLK)
5 PDM OUTPUT (DATA)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP)
0.84
SPM0437HD4H
SPM1437HM4H
Back
www.seltech-international.com 48
"3.35 x 2.50 x 0.98" Analog Bottom port microphone, low noise:
Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: <400
S/N Ratio: 63dB(A)
AOP: >115 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 OUTPUT (DATA)
3 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.35
WIDTH (W) 2.50
HEIGHT (H) 0.98
ACOUSTIC PORT (AP)
0.25
"3.35 x 2.50 x 0.98" Analog Bottom port microphone, high SNR:
Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: <400
S/N Ratio: 65dB(A)
AOP: 123 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 OUTPUT (DATA)
3 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.35
WIDTH (W) 2.50
HEIGHT (H) 0.98
ACOUSTIC PORT (AP)
0.25
SPA2410LR5H
SPA2629LR5H
Back
www.seltech-international.com 49
"3.50 x 2.65 x 0.98" Analog Bottom port, High SNR, Precision microphone:
Electrical specifications:
Sensitivity Range: -38±1dB
Output Impedance: <400
S/N Ratio: 65dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 145µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 GROUND (GND)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP)
0.325
"3.50 x 2.65 x 0.98" Analog Bottom port, High SNR, Precision microphone with improved RF:
Electrical specifications:
Sensitivity Range: -38±1dB
Output Impedance: <400
S/N Ratio: 65dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 145µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 GROUND (GND)
5 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 0.98
ACOUSTIC PORT (AP)
0.325
SPH1611LR5H-1
SPH0611LR5H-1
Back
www.seltech-international.com 50
"3.50 x 2.65 x 1.00" Analog Top port, Low noise, Precision microphone:
Electrical specifications:
Sensitivity Range: -38±1dB
Output Impedance: <500
S/N Ratio: 65dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 117µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
5 GROUND (GND)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.325
"3.50 x 2.65 x 1.00" Analog Top port Low noise, Precision microphone with improved RF:
Electrical specifications:
Sensitivity Range: -38±1dB
Output Impedance: <500
S/N Ratio: 65dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 117µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 GROUND (GND)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (SIGNAL)
5 GROUND (GND)
6 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.50
WIDTH (W) 2.65
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.325
SPH0642HT5H-1
SPH1642HT5H-1
Back
www.seltech-international.com 51
"4.72 x 3.76 x 1.25" Amplified Analog output Bottom port microphone:
Electrical specifications:
Sensitivity Range: -18±3dBV/Pa (Gain=20dB)
Output Impedance: <200
S/N Ratio: 63dB
AOP: >115 dB SPL (Gain=0dB)
Supply Voltage: 1.5 – 5.5V
Current drawn: < 350µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA) 2 GAIN
3 GROUND (GND)
4 GROUND (GND)
5 GROUND (GND)
6 POWER (VDD)
7 GROUND (GND)
8 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP) 0.25
"4.72 x 3.76 x 1.25" Analog Top port microphone with Enhanced RF Protection: Electrical specifications:
Sensitivity Range: -42±3dB
Output Impedance: <200
S/N Ratio: 59dB
AOP: >115 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 145µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 4.72
WIDTH (W) 3.76
HEIGHT (H) 1.25
ACOUSTIC PORT (AP)
0.84
Back
SPM0408LE5H
SPM0404HE5H
www.seltech-international.com 52
"3.76 x 2.24 x 1.10" Analog Top port microphone in very narrow package: Electrical specifications:
Sensitivity Range: -42±3dB
Output Impedance: <400
S/N Ratio: 59dB
AOP: >115 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.24
HEIGHT (H) 1.10
ACOUSTIC PORT (AP)
0.50
"3.76 x 2.24 x 1.10" Analog Top port microphone in very narrow package and improved RF: Electrical specifications:
Sensitivity Range: -42±3dB @1kHz (0dB=1V/Pa)
Output Impedance: <400
S/N Ratio: 59dB(A)
AOP: >115 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.24
HEIGHT (H) 1.10
ACOUSTIC PORT (AP)
0.50
SPQ0410HR5H
SPQ1410HR5H
Back
www.seltech-international.com 53
"3.76 x 3.00 x 1.10" Analog Bottom port microphone: Electrical specifications:
Sensitivity Range: -38±3dB / ±1dB
Output Impedance: <400
S/N Ratio: 63dB
AOP: 118 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Product range:
SPU0410LR5H with sensitivity tolerance ±3dB and ultrasonic response specified
SPU0410LR5H-1 with sensitivity tolerance ±1dB
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
5 GROUND (GND)
6 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 3.00
HEIGHT (H) 1.10
ACOUSTIC PORT (AP) 0.25
"3.76 x 3.00 x 1.10" Analog Bottom port microphone with extended low frequency performance (10Hz): Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: <400
S/N Ratio: 63dB
AOP: 118 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
5 GROUND (GND)
6 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 3.00
HEIGHT (H) 1.10
ACOUSTIC PORT (AP) 0.25
SPU0410LR5H / LR5H-1
SPU1410LR5H
Back
www.seltech-international.com 54
"3.76 x 2.95 x 1.10" Analog Top port microphone with MaxRF Protection and matching sensitivity option:
Electrical specifications:
Sensitivity Range: -42±3dB / ±1dB
Output Impedance: <400
S/N Ratio: 59dB
AOP: 122 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Product range:
SPU0410HR5H with sensitivity tolerance ±3dB
SPU0410HR5H-1 with sensitivity tolerance ±1dB
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.95
HEIGHT (H) 1.10
ACOUSTIC PORT (AP) 0.50
"3.76 x 2.95 x 1.10" Amplified Analog output Top port microphone with MaxRF Protection: Electrical specifications:
Sensitivity Range: -22±3dB @1kHz (Gain=20dB)
Output Impedance: <400
S/N Ratio: 59dB
AOP: >115 dB SPL (Gain=0dB)
Supply Voltage: 1.5 – 3.6V
Current drawn: 155µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GAIN
4 OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.95
HEIGHT (H) 1.10
ACOUSTIC PORT (AP)
0.50
SPU0410HR5H / HR5H-1
SPU0414HR5H
Back
www.seltech-international.com 55
"3.76 x 2.95 x 1.10" Analog Top port microphone with MaxRF and tape to limit particle ingress: Electrical specifications:
Sensitivity Range: -42±1dB @1kHz
Output Impedance: <500
S/N Ratio: 59dB
AOP: 123 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 120µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
5 NO CONNECT
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.95
HEIGHT (H) 1.10
ACOUSTIC PORT (AP)
0.99
"3.76 x 2.95 x 1.10" Analog Top port microphone with Enhanced RF Protection: Electrical specifications:
Sensitivity Range: -42±3dB
Output Impedance: <300
S/N Ratio: 59dB
AOP: >115 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 145µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 GROUND (GND)
4 OUTPUT (DATA)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 2.95
HEIGHT (H) 1.10
ACOUSTIC PORT (AP) 0.50
SPUL409HE5H
SPU0442HR5HT-1
Back
www.seltech-international.com 56
"2.75 x 1.85 x 0.90" Analog Bottom port microphone with very low power and very small package:
Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: <400
S/N Ratio: 62.5dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 50µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 GROUND (GND)
3 OUTPUT (DATA)
4 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 2.75
WIDTH (W) 1.85
HEIGHT (H) 0.90
ACOUSTIC PORT (AP)
0.25
"2.75 x 1.85 x 0.90" Analog Bottom port microphone with very low power and very small package: Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: 300
S/N Ratio: 62.5dB(A)
AOP: 124 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 132µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 OUTPUT (DATA)
3 GROUND (GND)
4 NO CONNECT
ITEM DIMENSION
LENGTH (L) 2.75
WIDTH (W) 1.85
HEIGHT (H) 0.90
ACOUSTIC PORT (AP)
0.25
SPV0840LR5H
Back
SPV0842LR5H
www.seltech-international.com 57
"2.75 x 1.85 x 0.90" Analog Bottom port microphone with very low power and very small package:
Electrical specifications:
Sensitivity Range: -38±3dB
Output Impedance: 290
S/N Ratio: 62.5dB(A)
AOP: 123 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 45µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 POWER (VDD)
2 OUTPUT (DATA)
3 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 2.75
WIDTH (W) 1.85
HEIGHT (H) 0.90
ACOUSTIC PORT (AP)
0.25
"3.10 x 2.50 x 1.00" Analog Top port microphone with low current:
Electrical specifications:
Sensitivity Range: -42±3dB
Output Impedance: <450
S/N Ratio: 59dB(A)
AOP: 129 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 70µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.10
WIDTH (W) 2.50
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.45
SPV1840LR5H
SPW2430HR5H
Back
www.seltech-international.com 58
"3.10 x 2.50 x 1.00" Analog Top port microphone with low current:
Electrical specifications:
Sensitivity Range: -42±1dB
Output Impedance: <500
S/N Ratio: 59dB(A)
AOP: 130 dB SPL
Supply Voltage: 1.5 – 3.6V
Current drawn: 130µA
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
ITEM DIMENSION
LENGTH (L) 3.10
WIDTH (W) 2.50
HEIGHT (H) 1.00
ACOUSTIC PORT (AP)
0.45
SPW0442HR5H-1
Back
www.seltech-international.com 59
Amplified Gain (incl Switchable function) Unity Gain
Amplified SiSonic
TM MEMS microphones add up to 20dB of gain to the analog output
DESIRED GAIN DIMENSION
Unity Gain (0dB) Tie Gain Pin directly to Output Pin
20dB Tie Gain Pin through C1 to Ground (R3=0)
Adjustable Gain (0dB to 20dB)
Add R3 and C1. Use formulas below to calculate settings: G = 1 + (R1 / (R2+ R3)); Gain (dB) = 20log (G)
Highpass Corner Frequency = 1 / (2πC1 * (R2 + R3))
Recently released Digital SiSonicTM MEMS microphones have Multi-Mode operations: Sleep / Low-Power / Standard. Mode selection is controlled by the microphone’s clock frequency. The system will need to be able to easily switch clock frequency to switch between different modes. Here is an example of the state diagram for SPH0641LM4H:
Gain Adjustment Method
Back
Multi-Mode Digital operation
www.seltech-international.com 60
KAS-33100-002 “Walleye” evaluation kit to easily evaluate Knowles Sisonic
TM MEMS microphones:
The KAS-33100-02 “Walleye” evaluation kit allows simple and easy evaluation of Knowles SiSonic™ MEMS microphones. This evaluation system can be used to evaluate up to 2 channels of audio for multiple MEMS microphone types. Microphone types include single ended and differential Analog MEMS microphones, Digital PDM MEMS microphones, and I2S MEMS microphones. The Walleye board provides the interface circuitry for 1 or 2 analog, 1 or 2 digital, or 1 or 2 I2S digital microphones. It includes:
1. AAS-SM-WALLEYE Microphone Evaluation Board Assembly 2. USB A type to Mini B type cable 3. Flex Adapter PCB’s part# KCB2734-C (3 Total) 4. SPH1668LM4H (bottom port PDM) on Flex (2 Total) 5. SPK0838HT4H (top port PDM) on Flex (2 Total) 6. SPH1642HT5H (top port analog) on Flex (2 Total) 7. SPH0611LR5H (bottom port analog) on Flex (2 Total) 8. SPH0645HM4H (bottom port I2S) on flex (2 Total)
Back
MEMS microphone evaluation kit
www.seltech-international.com 61
Optimizing the acoustic on so small product is difficult. Seltech has the expertise on mechanical design for the optimization on integration of MEMS microphones:
Ability to provide simulation of the response of the MEMS mic on specific environment
Ability to measure application performance
Capacity of building an adequate supply chain according to the customer demands
Experienced engineers in the follow-up of the request Why a gasket?
The gasket material must ensure a sealed acoustic path / a sealed audio signal path: Housing well sealed Tight fit over the microphone Sealing material is another key factor
A good seal between the product case and the gasket and between the PCB and the gasket is important. A leak between the microphone and the case, resulting through a leaky gasket design can cause echo or noise problems in the acoustic signal which leads to a lower SNR. To achieve optimal acoustic performance in MEMS microphones, Seltech offers rubber MEMS microphone gaskets (standard and customized depending on your product design). We can also provide the mesh to protect the MEMS microphone against dust/ water. Examples of MEMS microphone gaskets:
Bring us your gasket request, and we will make it “live” through our organization.
MEMS microphone gaskets
Back
www.seltech-international.com 62 Table of contents
Balanced armature receivers
Knowles subminiature speakers are based on balanced armature technology
and are utilized in a variety of high performance audio and communication products. Knowles balanced armature speakers (also called balanced armature receivers or specialty transducer speakers) are available in several sizes and efficiencies, which can be finely tuned to meet your specific performance requirements.
There’s no better way to improve your sound signature than with Knowles Balanced Armature Technology:
Enables high-fidelity, multi-way customized sound systems for earphones and earpieces
Delivers optimal performance in the smallest size – Knowles balanced armature receivers deliver the perfect balance between efficiency and size, while achieving your performance needs
Eliminates ambient noise with passive isolation – snug, in-ear fit keeps the music between your ears conditions such as high temperature, shock and vibration.
Knowles balanced armature receivers are designed for use in in-ear applications, including earphones and communication earpieces, or be sub-assembled for premium consumer electronics accessories. Knowles balanced armature technology platform uplifts the design and development of receivers for more advanced hearing aid solutions. Precise, custom-crafted performance is facilitated by such proprietary design possibilities as :
Ferrofluid™ damping
Wide Bandwidth for high-frequency hearing loss
D-Amp™ internal power management
and Vibration Isolation for superior gain-beforefeedback.
Enhance your brand with Knowles Balanced Armature technology!
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Portfolio: KNOWLES Balanced armature receivers (1/2)
RECEIVER SERIES
Picture Dimensions
(mm) Features
FK
5.00x2.73x1.93 Smallest standard ITC receiver
DFK
5.00x2.73x3.86 Dual FK receiver package
for increased SPL and reduced vibration output
WBFK
5.00x2.73x1.93 Tweeter
Wideband FK FK modified for enhanced high frequency output
TWFK
5.00x2.73x3.86 Small full range dual driver
Flat, high bandwidth response for best environmental sound pass-through
SWFK
5.00 x 2.73 x 3.86 Dual tweeter
Super-tweeter composed of two WBFK
DWFK
5.00 x 2.73 x 3.86
Dual driver More bass-oriented than TWFK Excellent High Freq. Extension
High Efficiency (SPL/Size)
FH
5.09x2.80x2.59 Single driver
Standard ITC receiver
RAB
5.15 x 2.96 x 2.58 Full range mid output single driver
Small size suitable for RIC applications Value option for full range response
HC
5.16x3.51x3.00 High output voice optimized version
Small size suitable for RIC applications Best low frequency output for size
WBHC
5.16x3.51x3.00 Wideband HC
HC modified for enhanced high frequency output
EH
5.19x3.55x3.00 Standard ITE receiver
EH is 2/3 around the size of ED speakers
ES
5.18x3.54x3.04 EH size receiver with
integrated Class D power amplifier
ED
6.32x4.31x2.97
Full range high output single driver Best value when higher output needed
Available vented and popular series for earphone designs
FED
6.32x4.31x2.47 Single driver
ED receiver with Ferrofluid™ damping
Note: ITE = In the ear / ITC = In the canal / BTE = Behind the ear / CIC = completely in the canal
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Portfolio: KNOWLES Balanced armature receivers (2/2)
RECEIVER SERIES
Picture Dimensions
(mm) Features
EP
6.32x4.29x2.99 Single driver
ED size receiver with integrated Class D power amplifier
GQ
6.30x4.29x4.92 2-way driver
Small Woofer / Tweeter Combination Balanced Sound Profile
SR
Ø6.40x4.00 Cylindrical full range single driver
Lowest cost option Optimized Performance for Entry-Level
EC
7.57x4.31x3.67 Standard ITE receiver
with rounded front corners
TEC
7.87x4.09x2.79 Full range highest output single driver
High output / size ratio Low end headroom for noise cancellation
DTEC
7.87x4.09x5.59 Dual TEC receiver package for
increased SPL and reduced vibration output
HODVTEC
7.87 x 4.09 x 5.59
Dual woofer High output dual vented TEC receiver
Low vibration for high output Low end headroom for noise cancellation
BK
7.87x5.59x4.01 Single driver
Standard BTE/ITE receiver Popular "value" series for earphone designs
HE
9.46 x 7.18 x 7.03 2-way driver
High Output SPL Woofer / Tweeter Combination Wide bandwidth
GK
9.46 x 7.18 x 6.81 3-way driver
Ultra-wide band Highest Output SPL
CI
9.47x7.18x4.10 Woofer
Standard BTE/ITE receiver Most powerful standard receiver
CM
Ø16.64x8.38 Non-contact headset receiver
Resists electro-static discharge to commercial aviation standards
MR
Ø22.12x9.3 Waterproof/submersible receiver
For use in handsets intended for use directly against the ear
CB
25.15x25.15x9.65 Receiver / microphone for radio handset application
Available in a waterproof version
Note: ITE = In the ear / ITC = In the canal / BTE = Behind the ear / CIC = completely in the canal
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FK / DFK series: 5.00 x 2.73 x 1.93 mm (FK) - 5.00 x 2.73 x 3.86 mm (DFK) One of the smallest balanced-armature speaker, the FK Series is designed for applications where size is the most important design concern.
Two-terminal zero-bias configuration
Undamped, screen damped, and internally damped responses
Wide range of coil impedances
DFK model is a dual FK
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL) DC Resistance
(Ω) Impedance
@ 500 Hz (Ω)
FK-23451-000 12S 95.5 108.5 360 450
FK-23466-000 12S 95.5 108.5 360 450
FK-26260-000 12S 96.0 105.0 135 180
DFK-30041-000 12S 99.7 105.5 100 133
WBFK series: 5.00 x 2.73 x 1.93 mm Same package size as FK Series, WBFK has extended high frequency response. It is recommended as a high frequency component to be combined with low/midrange speaker for music earphones.
Lower low/mid-band sensitivity compared to FK Series
Best high frequency response of any Knowles element
Combine with low/mid-range speaker for extended frequency response TWFK pairs WBFK with low frequency FK
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
WBFK-30000-000 12S 95 105 100 111
WBFK-30095-000 12S 91 105 12.5 13.5
FK / DFK series
WBFK series
Back
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TWFK series: 5.00 x 2.73 x 3.86 mm One of the smallest dual balanced armature speaker, the TWFK is designed for pro-audio in-ear applications. Enables customized cross-over systems to achieve target frequency response in a package size smaller than the ED Series.
Single sound port for simplified earphone design
Extreme wideband frequency response
Unique woofer/tweeter combination
Enables leading-edge earphone designs for miniature size and performance
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
TWFK-30017-000 12S 95 103 25 31
SWFK series: 5.00 x 2.73 x 3.86 mm SWFK Series speakers are qualified as Super Tweeter. They are composed of two WBFK drivers with no crossover to deliver the best mid and high-frequency content. They can be used as high quality tweeters in HIFI systems.
Improved response
Wide dynamic range
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
SWFK-31736-000
12S 97 110 6 6
SWFK series
TWFK series
Back
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DWFK series: 5.00 x 2.73 x 3.86 mm DWFK Series Speakers are full range combo drivers with no crossover with boosted low frequency content.
Low distortion
Small size
More bass-oriented than TWFK High efficiency (SPL / Size)
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
DWFK-31785-000 12S 101 110 25 27
FH series: 5.09 x 2.80 x 2.59 mm The FH speaker represents an unprecedented combination of ultra-compact size and high SPL output with efficiencies normally found only in much larger speakers. The FH speaker line brings true high-gain, high-output performance to earphone designs.
Undamped, screen damped, internally damped, and Ferrofluid ™ damped responses
Various port locations, coil impedances, damping options, termination configurations, and frequency responses available
Maximum SPL output of 123dB at resonance peak, 109dB at midband (500Hz)
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
FH-23371-000 12S 100 113 60 90
FH-23375-000 12S 100 113 240 335
FH-23377-000 12S 100 113 515 685
FH-23821-000 12S 100 113 125 174
FH-26553-000 12S 100 113 60 90
Back
DWFK series
FH series
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RAB series: 5.15 x 2.96 x 2.58 mm Knowles series RAB produces a rich, full-range sound in a small physical size. Three sound profiles fulfill a wide range of earphone designs, including hybrids : 32063 with balanced sound, 32257 with warm, precise bass, and 32033 with open vent for custom response tuning
Small size
Wideband output with 3 sound profiles
Model 32063 also suitable as midrange-tweeter in hybrid earphones
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
RAB-32033-000 12C 106 114 22 33.5
RAB-32063-000 12C 103.5 114 22 30.5
RAB-32257-000 12C 105.5 115 22 33
HC series: 5.16 x 3.51 x 3.00 mm Knowles balanced-armature, magnetic technology to give high efficiency, stability and reliability. HC Series provides increased low frequency dynamic range in a package size equal to FC.
High-output technology provides double (+3dB) the maximum acoustic output of existing Knowles FC Series speakers
Maximum output comparable to Knowles’ ED Series speaker in a package size only 68% as large!
Same size and dimensions as Knowles’ EH Series
Ideal for applications where small size and high output is required
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
HC-23761-000 12C 101 107 4.9 8.4
HC-23763-000 12C 101 107 11 5 20
HC-23764-000 12C 101 107 15.5 24
Back
RAB series
HC series
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WBHC series: 5.16 x 3.51 x 3.00 mm
The advanced design of the HC series speaker provides extended acoustic bandwitdh for hi-fi in-ear speakers when paired with a low frequency speaker.
Lower low/mid band sensitivity compared to HC series
Combine with low/mid range speaker for extended frequency response
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
WBHC-23910-000 12C 95 106 120 130
WBHC-30670-000 12C 95 105 44 46
EH series: 5.19 x 3.55 x 3.00 mm EH Series speakers are approximately 2/3 the size of ED speakers and may be used for small radio communication earphones where ED size does not meet package requirements.
Balanced-armature, magnetic technology to give high efficiency, stability andreliability
High sensitivity
Various responses, including standard, damped and modified
Low distortion
Self-shielded for low magnetic radiation
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
EH-23030-000 12C 100 117 395 625
EH-23149-000 12C 100 116 68 101
EH-27479-000 12C 100 112.5 118 144
WBHC series
EH series
Back
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ES series: 5.18 x 3.54 x 3.04 mm EH size speaker with integrated Class D power amplifier.
EH micro speaker, but with internal, highly-efficient, class D amplifier
Lower current drain prolongs battery life
Lower distortion
Available in a range of SPL ratings
Reference Port location Sensitivity @
1kHz (dB SPL)
Sensitivity @ 1st Peak (dB
SPL)
DC Resistance (Ω)
Impedance @ 500 Hz (Ω)
ES-23127-000 12C 101 107 N/A N/A
ES-23140-000 12C 101 105.5 N/A N/A
ED series: 6.32 x 4.31 x 2.97 mm One of Knowles’ most versatile and most popular speakers, its compact size and appreciable output power make the ED speaker suitable for a variety of instruments.
Undamped, screen damped, internally damped, and Ferrofluid ™ damped responses
Numerous port locations and coil impedances
High efficiency and low distortion
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL) DC Resistance
(Ω) Impedance
@ 500 Hz (Ω)
ED-21744-000 12C 104 112.5 825 1700
ED-21913-000 12C 104 117.5 376 780
ED-23147-000 12C 102.5 110 25 48
ED-23619-000 12C 104 117.5 3.3 71
ED-23801-000 12C 104 113 155 96
ED-23814-000 12C 104 112.5 23 50
ED-26245-000 12C 104 113 35 55
ED-26598-000 12C 102.5 106 196 395
ED-26821-000 12C 102.5 111 3.3 7.1
ED-27045-000 12C 104 113 196 395
ED-27230-000 12C 104 117.5 54.5 79
ED-27304-000 12C 104 117 201 290
ED-29689-000 12C 104 118 3.7 7.1
ED-26805-000 12C 102 110 23 26
ED-26876-000 12C 102.5 111 25 48
ED-31305-163 12C 106.5 119.5 39.2 58.8
ES series
ED series
Back
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FED series: 6.32 x 4.31 x 2.47 mm The addition of Ferrofluid ™ to Knowles ED series speakers improves mechanical shock survival and provides peak damping to smooth frequency response.
Ferrofluid ™ damped with 2dB, 4dB, or 6dB peak amplitude
Superior shock performance and reduced speaker vibration
Two-terminal zero-bias and three-terminal center-tapped configurations
Numerous port locations and coil impedances
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
FED-26792-I04 12C 102.5 107 48 65
FED-30048-I04 12N 102 107 23 26
EP series: 6.32 x 4.29 x 2.99 mm Based on Knowles’ versatile and popular ED speaker, the EP series adds the benefits of an internal Class-D amplifier. Its compact size and appreciable output power make the EP speaker suitable for a variety of designs.
Class D amplified magnetic speaker
Self-shielded to reduce magnetic radiation
125dB SPL maximum output
Three-terminal electrical connection
Reference Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL) Max SPL @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
EP-24075-00 106 114 124 N/A N/A
FED series
Back
EP series
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GQ series: 6.30 x 4.29 x 4.92 mm The GQ is a two-way balanced armature system with added low frequency headroom, designed for pro-audio\in-ear application. Enables customized crossover response to achieve target frequency response.
Dual element with enhanced bass capabilities and wideband response
Unique, subminiature woofer/tweeter combination for in-ear applications
Single port for simplified earphone design
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
GQ-30783-000 12S 109.5 116 12.5 21.5
GQ-30710-000 12C 106 119.5 25.4 51.7
SR series: Ø6.40 x 4.00 mm At 6.4mm diameter, the Mini SR is the first smallest round balanced armature speaker in the marketplace. SR offers output equivalent to the FC series and maximizes bass performance.
Round package facilitates earphone designs
Drop-in upgrade for moving coil dynamic speakers
Designed for high volume production
Balanced armature technology
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
SR-32453-000 Face 105 115.5 25 32.5
SR6438NWS-000 Face 109.5 120 25 36.5
SR6438NWS-158 Face 109.5 120 25 32.8
GQ series
SR series
Back
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EC series: 7.57 x 4.31 x 3.67 mm EH Series speakers are approximately 2/3 the size of ED speakers and may be used for small radio communication earphones where ED size does not meet package requirements.
Balanced-armature, magnetic technology to give high efficiency, stability and reliability
High sensitivity
Various responses, including standard, damped and modified
Low distortion
Self-shielded for low magnetic radiation
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
EC-23097-000 12S 108 120 92 200
EC-23098-000 12S 108 120 196 425
EC-26368-000 12S 108 120 26.3 54
EC-23095-000 12S 105 120 376 800
TEC series: 7.87 x 4.09 x 2.79 mm The TEC combines output comparable to the larger BK speaker in an ultra-thin package. The TEC is suitable for multi-element earphone designs
Ultra-thin
Wideband output
DTEC combines two TEC elements
Enables small multi-element designs
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
TEC-30033-000 12C 115 119 22 31
TEC-30087-000 12C 115 119 46 62
EC series
TEC series
Back
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DTEC series: 7.87 x 4.09 x 5.59 mm The DTEC Series combines two TEC speaker elements with a single round port. Case size is equivalent to BK/EF. DTEC provides increased output and reduced vibration compared to a single speaker.
Dual elements with single sound port
More output than BK in equal package size
Reduced vibration compared to BK
Improved frequency response compared to BK
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
DTEC-30008-000 12S 123 122.5 23 31 5
HODTEC-31230-000 12S 120 122.2 26.5 40.7
HODTEC-31516-000 25 120 122.5 102 171
HODTEC-31618-000 12C 119 115.5 8.6 21.8
HODVTEC series: 7.87 x 4.09 x 5.59 mm HODVTEC Series speakers consist in dual woofer with back vent and high output. It can be used as dedicated woofer in multi-ways applications.
Provides deep, rich bass
High drive capability
Clean and precise bass
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
HODVTEC-31618-000
12S 120 124 9 25
DTEC series
HODVTEC series
Back
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HE series: 9.46 x 7.18 x 7.03mm HE Series speakers are 2-way drivers with big dynamic range, they are composed of a CI as a Woofer and a tuned ED as a Tweeter.
Woofer / Tweeter combination
Wide bandwidth
High output SPL
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
HE-31751-000 12S 113.5 122 24 48
BK series: 7.87 x 5.59 x 4.01 mm BK Series speakers provide broadband performance at value pricing. They are commonly used for full range in-ear speakers and communications utilizing an earplug design.
High efficiency and low distortion
Various port locations, coil impedances, damping options, terminal configurations, and frequency responses available
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
BK-21600-000 12S 123 125 100 285
BK-21604-000 12S 123 125 895 2320
BK-21610-000 12S 121 125 21 60
BK-21613-000 1S 118 126 160 450
BK-21615-000 12S 118 125 160 450
BK-21669-000 12C 123.5 125 9 22
BK-23134-000 12S 118 125 100 285
BK-26824-000 12S 119 120 10.7 16
BK-28507-000 12S 126 126 10.7 13.3
BK-28510-000 12S 123 127 111 320
BK-28562-000 12S 123 124 18.5 23
BK-29725-000 12S 118 119 100 285
Back
HE series
BK series
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GK series: 9.46 x 7.18 x 6.81mm GK Series speakers are 3-way drivers with big dynamic range and high frequency extension. They are composed of a CI as a Woofer and a TWFK as a Midrange / Tweeter.
Woofer / Midrange / Tweeter combination
Premium bandwidth
High output SPL
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
GK-31732-000 12S 113 120 24 23
CI series: 9.47 x 7.18 x 4.10 mm Knowles’ largest and most powerful speaker, the CI series is the speaker of choice. With its high efficiency and a 143dB SPL maximum output, the CI speaker provides optimal low frequency performance.
Two-terminal zero-bias and three-terminal center-tapped configurations
Various port locations, coil impedances, termination configurations, and frequency responses available
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
CI-22748-000 12C 125 128 75 250
CI-22762-000 1S 125 128 51 175
CI-22955-000 12C 125 128 20 68 @ 1 kHz
CI-22960-000 12C 125 128 100 400
CI-28487-000 1S 125 128 24 100 @ 1 kHz
CI-28597-000 11S 125 128 20 68 @ 1 kHz
GK series
Back
CI series
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CM series: Ø16.64 x 8.38 mm The CM Series delivers the benefits of balanced armature technology in a compact finished package. The CM is ideal for use in situations where a non-contacting headset is required, but signal voltage is limited – as is common for radios and wireless telephones. The CM also conserves battery power, and provides static shock protection for the user.
Balanced-armature, magnetic technology to give high efficiency, stability and reliability
High acoustic efficiency enables sufficient sound output even when limited power is available
In-built static protection
Lightweight, matt-black, plastic housing
Ergonomically designed with rounded edge to fit the concha
High-quality sound output
Tailored bandwidth for superb speech intelligibility
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
CM-23152-000 Face 103 109 69 150
CM-23299-000 Face 103 109 69 150
CM-28421-000 Face 103 109 100 360
CM-28431-000 Face 103 109 10.5 30
CM-28452-000 Face 103 109 100 360
MR series: Ø22.12 x 9.3 mm The MR Series Assemblies consist of a speaker element attached to a waterproof bellows assembly. They may be panel mounted, and are suitable for outdoor use or repeated submersion.
Highly waterproof – no loss of performance after immersion in 15m water
Corrosion resistant
Withstands explosive decompression
Design proven in rugged environments
Leads attached
High resistance to mechanical shock
Acoustically transparent bellows
Resists effects of mud, sand, and salt encrustation
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
MR-23333-000 Face 100 119.5 10 21
CM series
MR series
Back
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CB series: 25.15 x 25.15 x 9.65 mm The CB Series Transceiver offers high electro-acoustic efficiency to conserve power in push-to-talk radio handsets and other battery operated equipment. The CB is available with mounting pins to facilitate assembly to a PC board. Model CB-23817-000 is designed to survive submersion in water.
Excellent sound quality
High speech intelligibility, stability, and reliability
Suitable for PCB mounting
Can function as a microphone or beeper
Various impedances
Face and edge port locations available
Reference Port location Sensitivity @
1kHz (dB SPL) Sensitivity @
1st Peak (dB SPL)
DC Resistance
(Ω)
Impedance @ 500 Hz (Ω)
CB-22849-000 Edge 73 86 11.5 24
CB-22850-000 Edge 73 86 21.5 48
CB-23817-000 Edge 83 97 21.5 48
CB series
Back
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One button inline mic compatible with iPhone and Android phones and based on a cost effective Knowles SiSonic MEMS microphone
TC-32348-000 Inline mic PCB. One button control compatible with Android & iOS phones. Lot of 100pcs
TC-32485-000 Housing for inline mic, two pcs front & back. Lot of 100 front & back sets. Only orderable with TC-32348-000
TC-32349-000 Straight rubber cable mounted with inline mic. Sold in lots of 100pcs
Back
Inline Mic for earphones
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Specialty microphones
Knowles Specialty Transducer (ST) product line consists of miniature
microphones and assemblies. Hundreds of design possibilities can be applied to your product challenge with our high-performance microphone designs. Ideal for new product ideas that require premium audio and very small form factors, solutions include noise cancelling, omni-directional and unidirectional performance.
Other variables include size, shape, amplification, sensitivity, low noise, and resistance to vibration and mechanical shock. Knowles ST components and assemblies are unique in fit, form and function.
Knowles Specialty Transducer / Electret microphones are designed into high value applications in markets such as the following:
Communications – headsets, handsets, earpieces, telephony, voice recognition, emergency services, military, surveillance
Pro audio – in-ear speakers, lapel microphones, boom microphones
Medical and more – sensors, audiometers, medical implants
Knowles Specialty Transducer / Electret microphones include:
Subminiature performance microphones (GA, FG, DFG, EM, EK, EL and NR Series)
Magnetic microphones (BJ Series)
Piezo Ceramic microphones (BL Series)
and Waterproof/Submersible subminiature microphones (WPand MR Series) Knowles' magnetic microphones (BJ series) are based on balanced armature technology and are self-shielded against external magnetic fields. The microphones offer high efficiency, stability, and reliability and are small in size. The piezo ceramic microphones (BL series) are rugged, stable, and versatile. This series features high vibration sensitivity & high resistance to mechanical shock. They may be used as accelerometers. Knowles' waterproof/submersible subminiature microphones are designed to survive complete immersion in water:
WP series can be immersed in water to a depth of 1 meter
MR series can be immersed in water to a depth of 15 meters
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Portfolio: KNOWLES Specialty microphones
MICROPHONE SERIES
Picture Dimensions
(mm) Features
GA
2.00 x 2.00 x 4.00 Omni electret mic
FG/DFG
Ø2.56 x 2.56
Smallest electret, many options Responses for full range and inward pickup
Shock resistance Omni (FG) / Uni (DFG)
EM
3.63 x 3.63 x 2.28 Popular & versatile omni electret
Numerous responses & port locations Responses available for inward pickup
WP
3.99 x 5.56 x 2.21 IP67 noise cancelling omni electret
For harsh environments Survives condensation and frost
EK/EL
4.00 x 5.59 x 2.28 High sensitivity, low noise electret Omnidirectionnal with high SNR
Directional version available as series EL
NR
4.00 x 5.59 x 2.28 Electret mic for noisy environments
Superior noise cancelling performance Low vibration sensitivity
BJ
7.87 x 5.59 x 4.01 Balanced armature mic
Does not require bias voltage
BL
7.87 x 5.54 x 4.06 7.87 x 5.54 x 2.24
Piezo Ceramic mic
MR
Ø22.12 x 7.6 Ø22.12 x 9.3
Ø22.12 x 11.43
Waterproof/Submersible omni mic MR models integrate BJ and WP Immersion up to 15 - 20m depth
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GA series: 2.00 x 2.00 x 4.00 mm – Omni-directional
The GA Series Microphone is a brand new microphone design with unique size and shape. Its elongated dimensions are ideal for directional applications, allowing you ultimate flexibility in terminal pad area placement. And the GA is using the new '38' circuit providing excellent sensitivity and noise performance for package size. The GA targets space efficiency in BTE and ITE designs; BTE: End-to-end configuration provides 8mm spacing for directionality while ITE: 20% smaller cross sectional area than FG Series.
Compact size providing superior fit rates
Excellent sensitivity and noise performance for package
Integral RFI suppression / Exceptionally low vibration sensitivity
Multiple acoustic port placement versions
Reference
Sensitivity @ 1kHz
(dB re1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier Current Drain
(uA)
Typ. “A” Weighted Noise (1 kHz
Equivalent SPL)
Nominal Output
Impedance (Ω)
Comments
GA38-30775-000 -53.0±3 1.3 nom. 1.6 max 25 25.0 dB 4400 Tubeless
GA38-30870-000 -53.0±3 1.3 nom. 1.6 max 25 25.0 dB 4400 Micro-Tube
version
FG / FDG series: Ø2.56 x 2.56 mm – Omni-directional (FG) / Unidirectional (FDG)
The FG Series microphone is the world's smallest electret condenser microphone. Its cylindrical shape and compact size facilitate compact designs. The FG can also be used in directional applications as a matched omni-directional pair.
Smallest microphone option
High resistance to mechanical shock
Exceptionally low vibration sensitivity
Various responses available / Integral RFI suppression
Reference Sensitivity @ 1kHz (dB re1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier Current
Drain (uA)
“A” Weighted Noise *1 kHz Equivalent
SPL ** re 1Vrms
Nominal Output
Impedance (Ω)
Comments
FG-23329-D65 -53.0±3 1.3 nom. 3.0
max 50 30.0 dB* 4400 RFI Improved Version
FG-23329-P07 -53.0±3 1.3 nom. 3.0
max 50 30.0 dB* 4400
3-Wire, 1015mm Shielded Cable
FG-23629-P16 -53.0±3 1.3 nom. 3.0
max 50 28.0 dB* 4400
3-Wire, 25.4mm Litz Wires
FG-23629-D65 -53.0±3 1.3 nom. 3.0
max 50 28.0 dB* 4400 RFI Improved Version
FG-23652-D65 -53.0±3 1.3 nom. 3.0
max 50 28.0 dB* 4400 RFI Improved Version
FG-23652-P16 -53.0±3 1.3 nom. 3.0
max 50 28.0 dB* 4400
3-Wire, 25.4mm Litz Wires
FG-23742-D36 -63.0±3 1.3 nom. 3.0
max 50 36.0 dB* 4400
3-Wire, 25.4mm Litz Wires
FG-26163-D65 -58.0±3 1.3 nom. 3.0
max 50 -93.0 dB** 4400
RFI Improved Version 6dB/Octave Ski-Slope
DFG-30445-000 -69.0±3 1.3 nom. 3.0
max 50 -93.0 dB** 1700 Directional, Cardioid
DFG-30852-000 -71.0±3 1.3 nom. 3.0
max 50 -93.0 dB** 1700 Directional, Cardioid
DFG-30851-000 -73.0±3 1.3 nom. 3.0
max 50 -93.0 dB** 1700
Directional, Noise Canceling
GA series
FG / DFG series
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EM series: 3.63 x 3.63 x 2.28 mm – Omni-directional
The EM is a popular, alternative omni-directional microphone. The EM can also be used in directional applications as a matched omni-directional pair.
High resistance to mechanical shock
Improved RFI and EMI
Undamped, screen damped, and internally damped responses
Numerous port locations
Wide range of frequency responses
Reference
Sensitivity @ 1kHz
(dB re1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier Current Drain
(uA)
"A" Weighted Noise *1kHz Equivalent
SPL ** re 1Vrms
Nominal Output
Impedance (Ω)
Comments
EM-23046-P16 -56.0 ±3 1.3 nom. 3.0 max 50 31.0 dB* 4400
3-Wire, 25.4mm Litz Wire Standard Response
EM-23069-000 -56.0 ±4 1.3 nom. 3.0 max 50 33.0 dB* 4400 Tubeless Standard Response
EM-30081-D65 -68.0 ±5 1.3 nom. 3.0 max 50 -98.0 dB* 4400 Standard Response
WP series: 3.99 x 5.56 x 2.21 mm – Waterproof – Omni-directional, Noise Canceling
The WP Series’ form factor is a very small size with low vibration sensitivity. The excellent noise canceling performance is useful for sensors and instrumentation. The WP Series are available in boom microphone packages. (See the FB Series and PNR/PWP Series for details.)
Waterproofed to submersion in 1m water
Omnidirectional noise canceling /Close-talking (noise-canceling)
Corrosion resistant
Withstands explosive decompression
Excellent environmental performance
High resistance to mechanical shock / Leads attached
Reference Sensitivity @ 1kHz (dB re1V/0.1Pa)
Directivity DC Supply
(Vdc)
Max. Amplifier Current
Drain (uA)
"A" Weighted Noise *1kHz
Equivalent SPL
** re 1Vrms
Nominal Output
Impedance (Ω)
Comments
WP-23501-000 -54.0+3 Noise
Canceling 1.3 nom. 10 max 300 -100 dB** 2500 2-Wire
WP-23502-000 -52.0+3 Omni-
Directional 1.3 nom. 10 max 50 26.0 dB* 4400 3-Wire
WP-23502-P07 -52.0+3 Omni-
Directional 1.3 nom. 10 max 50 26.0 dB' 4400
3-Wire, w/ 1m Shielded Cable
WP-23502-P16 -52.0+3 Omni-
Directional 1.3 nom. 10 max 50 26.0 dB* 4400
3-Wire, w/ 25.4mm Litz Wires
WP-23849-C36 -52.0+3 Omni-
Directional 1.3 nom. 10 max 50 26.0 dB* 4400
3-Wire, RFI Improved + Extended Response
WP-25993-D63 -55.0±4 Noise
Canceling 1.3 nom. 10 max 300 -100 dB** 2000 2-Wire
EM series
WP series
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EK / EL series: 4.00 x 5.59 x 2.28 mm – Omni-directional (EK) / Unidirectional (EL)
EK omnidirectional microphones provide a unique combination of size, performance and value. Its high electroacoustic sensitivity and low noise make this microphone an excellent choice for applications where space allows. These popular microphones are available in many model varieties.
High resistance to mechanical shock
Available with RFI suppression / Various port locations available
Wide range of frequency responses / High S/N performance
Reference Sensitivity @ 1kHz (dB re1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier
Current Drain (uA)
"A" Weighted Noise *1kHz Equivalent SPL
** re 1Vrms
Nominal Output
Impedance (Ω)
Comments
EK-23024-C36 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
RFI Improved Version Standard Response
EK-23024-P07 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
3-Wire, 1 m Shielded Cable
Standard Response
EK-23027-C36 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
RFI Improved Version Standard Response
EK-23028-C36 -57.0+3 1.3 nom. 10
max 50 -100.0 dB** 4400
RFI Improved Version 6dB/Octave Ski-Slope
EK-23033-C36 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
RFI Improved Version Broadband Response
EK -23132-000 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400 Broadband Response
EK-23133-C36 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
RFI Improved Version Broadband Response
EK-23142-C37 -53.0±2 1.3 nom. 10
max 50 26.0 dB* 4400
RFI Improved Version Broadband Response
EL-23078-000 -53.0±2 1.3 nom. 10
max 50 -100.0 dB** 4400 Dual Port Uni-Directional
NR series: 4.00 x 5.59 x 2.28 mm – Noise Canceling
The NR Series close talking microphones deliver state-of-the-art noise canceling performance. NR microphones are used as headset microphones in the most demanding communication and speech recognition environments. The NR Series microphones are available in boom microphone packages. See Boom section for details.
Integral FET amplifier / Withstands severe environmental conditions
Diaphragm responds to pressure differential giving high rejection of background noise
Low vibration sensitivity / High electoacoustical sensitivity
Superior noise canceling performance / Lead attachment available
Reference Sensitivity @
1kHz (dB re1V/0.1Pa)
DC Supply (Vdc) Max. Amplifier Current Drain
(uA)
Max. "A" Weighted Noise (dBV)
Nominal Output Impedance (Ω)
Comments
NR-23158-000 -49.0±3 1.3 nom. 10 max 50 -100 4400 3-Wire
NR-23159-000 -65.0±3 1.3 nom. 10 max 200 -100 2500 2-Wire
NR-23160-000 -52.0±3 1.3 nom. 10 max 200 -100 2500 2-Wire
NR-25994-000 -49.0±3 1.3 nom. 10 max 50 -100 4400 3-Wire
NR-25994-D63 -55.0±4 1.3 nom. 10 max 300 -100 2000 2-Wire
NR-30610-D63 -59.0±3 3.0 nom. 10 max 550 -100 2000 2-Wire
EK / EL series
NR series
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BJ series: 7.87 x 5.59 x 4.01 mm – Magnetic – Omnidirectional, Noise Canceling
Knowles’ Magnetic Microphones (BJ Series) are based on balanced armature technology and are self-shielded against external magnetic fields. The microphones offer high efficiency, stability, and reliability and are small in size. The diaphragm of the BJ Series responds to pressure differential, giving high rejection of background noise. Both face and edge ports are offered. In addition, there is a short distance between front and back ports resulting in improved noise rejection up to higher frequencies.
Balanced armature technology
High efficiency, stability and reliability
Self-shielded against external magnetic fields
Face and edge ports
Diaphragm responds to pressure differential giving high rejection of background noise
Short distance between front and back ports resulting in improved noise rejection up to higher frequencies
Reference Directivity Port
location Nominal Impedance at 1kHz
(Ω) Nominal DC Resistance at 20°C
(Ω)
BJ-21590-000 Omni-Directionnal OJn 3900 900
BJ-28411-000 Noise Canceling Dual 300 75.5
BL series: 7.87 x 5.54 x 4.06 and 7.87 x 5.54 x 2.24 mm – Piezo Ceramic – Omni-directional
Knowles’ Piezo Ceramic Microphones (BL Series) are rugged, stable and versatile. BL microphones are available in three different package sizes: standard, thin or 0.5" cylindrical shell and cable assembly. Both communication and broadband frequency response versions are offered. In addition, BL microphones have high vibration sensitivity and may be used as accelerometers.
High sensitivity
Wide frequency range
Integral FET amplifier
High resistance to mechanical shock
Various responses
Two case sizes available
Reference Dimensions
(mm)
Sensitivity @ 1kHz (dB rel1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier Current Drain
(uA)
"A" Weighted
Noise
Nominal Output
Impedance (Ω)
Comments
BL-21671-000 7.87 x 5.54 x 4.06 -54.0±3 1.3 50 32.0 dB 13000 Standard Response
BL-21671-140 7.87 x 5.54 x 4.07 -54.0±4 1.3 50 32.0 dB 13000 Faster Overpressure
Recovery Standard Response
BL-21785-000 7.87 x 5.54 x 2 24 -69.0±3 3 160 34.0 dB 4000 Broadband Response
BL-21994-000 25.5 -69.0±3 3 160 34.0 dB 4000 965mm Shielded
Cable Broadband Response
BL-23497-000 25.6 -69.0±3 3 160 34.0 dB 4000 34.3mm Leads
Broadband Response
BL-27046-000 7.87x5.54x2.24 -69.0±3 1.3 160 34.0 dB 4000 Broadband Response
BJ series
BL series
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MR series: Ø22.12 x 7.6 / 9.3 / 11.43 mm– Waterproof - Omni-directional
The MR Series Assemblies consist of a microphone element attached to a bellows assembly. They may be panel mounted, attached for boom applications, and are suitable for outdoor use or repeated submersion.
Highly waterproof – no loss of performance after immersion in 15-20 m water
Corrosion resistant
Withstands explosive decompression
Design proven in rugged environments
Cable wire attached
High resistance to mechanical shock
Acoustically transparent bellows
Resists effects of mud, sand, and salt encrustation
Reference Dimensions
(mm)
Sensitivity @ 1kHz
(dB rel1V/0.1Pa)
DC Supply (Vdc)
Max. Amplifier Current Drain
(uA)
"A" Weighted
Noise
Nominal Output
Impedance (Ω)
Comments
MR-23151-000 Ø22.12 x 9.3 -87.0±3 N/A N/A 30.0 dB 300 2-Wire, 193mm
Leads
MR-28406-000 Ø22.12 x 7.6 -50.0±3 1.3 50 30.0 dB 3500 3-Wire, 202mm
Leads
MR series
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Boom microphones & sensors
Knowles boom microphones are designed for either flexible or rigid
configurations and offer such performance options as noise rejection and high-frequency crossover of near and far field responses. Collaboration with commercial, governmental and industrial designers is producing new helmet applications for aircraft, military, first responder and high-noise manufacturing environments.
Headset booms allow the microphone to be placed in the near field, where a noise canceling microphone responds the difference in acoustic pressure. The combination of a good close-talking microphone element and close proximity to the mouth provides excellent signal to noise even in extremely noisy conditions. Those boom microphone assemblies are mainly used in :
Lightweight noise-canceling headset for telephony, computer speech recognition, or other indoor use (Security, Police, Fire, Dispatcher etc.)
Helmet or face mask integration
Radio communication (Aviation, Industrial, In-ear, Professional, Military)
And Sensor (Shot detection, Unattended Ground Sensors)
Several series of boom & sensor microphones are available: W, U, I, O, M, R, F and H W, U, I, O, M and R series are boom microphone assembly: W series – smaller footprint, lighter weight offering noise cancellation and IP67 rating I series – noise cancelling with self-powered microphone element M series – noise cancelling, waterproofing to IP68 rating R series – designed for aviation customers looking for TSO/RTCA compatible noise cancelling electret microphone W, O, M and R series are mainly built-in with EK, NR and WP specialty transducer microphones. U series are built-in with FG and DFG specialty transducer microphones. I series are built-in with BJ specialty transducer microphones. F and H series are sensor microphone assembly: F series – Panel mount design for outdoor applications H series – Designed for use in outdoor sensor arrays for fixed or mobile installations. Detects time of arrival and acoustic signature for source triangulation and identification Both F and H series are built-in with highly sensitive EK or WP specialty transducer microphones. Typical uses include shot detection, intruder and acoustic signature recognition
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Portfolio: KNOWLES Boom microphones & sensors
Series Picture Type Comments
W
Boom microphone
Suitable for lightweight radio communications headsets
Choice of NR, WP or EK microphones Water resistant sintered metal grill
O
Boom microphone
Ruggedized for military and civilian applications
Fully EMI shielded Choice of NR, WP or EK microphones
Versions with depth ratings to 3m
M
Boom microphone
Ruggedized for military and civilian applications
Choice of NR, WP or EK microphones Versions with depth ratings to 20m
I
Boom microphone
Ruggedized for military and civilian applications
Balanced armature mic model BJ External bias voltage not required Versions with depth ratings to 10m
F
Panel mount waterproof sensor
Waterproof options from 1m to 20m Expanded dynamic range
Choice of EK & WP mic elements Variety of wire options including shielding
H
Shielded sensor
Fixed or vehicular applications EMI resistant conductive plastic shell
Choice of EK & WP mic elements Customizable PCBA within housing
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W series: Designed for headset customers who are looking for small footprint and lightweight platform with waterproofing to 1m (based on IP67 rating) Plastic head design with metal flexible boom:
Available in 4.2mm down to 2.7mm diameter metal flexible boom Security, Police, Fire dispatchers and other lightweight communication headsets:
SWAT, SRT, HRT, Bike Patrol, Motorcycle Patrol, Mounted and Marine Patrol, K9 Officer Designed for the NR and WP elements, but can also accommodate EK and EA series
Reference Rating Microphone
element Directivity
Boom Length
Tip-To-Tip (mm)
Exit Wire Length (mm)
Nominal Boom Dia.
(mm)
Microphone configuration
FB-DW-30294-000 3m WP-25993-D63 Noise Canceling 140 60 4.2 2-WIRE
FB-BW-30335-000 3m WP-25993-D63 Noise Canceling 160 60 2.7 2-WIRE
FB-DW-30296-000 3m WP-25993-000 Noise Canceling 140 60 4.2 3-WIRE
FB-DW-30293-000 IP54 NR-25994-D63 Noise Canceling 140 60 4.2 2-WIRE
FB-BW-30330-000 IP54 NR-25994-D63 Noise Canceling 160 60 2.7 2-WIRE
FB-DW-30295-000 IP54 NR-25994-000 Noise Canceling 160 60 4.2 3-WIRE
I series: Designed for headset customers who are looking for a noise canceling non-power element in robust platform with waterproofing options from 1m down to 10m (based on IP67 rating)
Also available in Omni Directional Plastic head design with metal flexible boom
Available in 5.9mm down to 4.2mm diameter metal flexible boom Tactical, Security and Police and other radio communication headsets
Mounted and un-mounted ground forces, armor units Designed for the BJ series elements
Reference Rating Microphone
element Directivity
Boom Length
Tip-To-Tip (mm)
Exit Wire Length (mm)
Nominal Boom Dia.
(mm)
Microphone configuration
FB-EI-30026-000 1m BJ-28471-000 (150Ω Imp.)
Noise Canceling 212 140 5.4 2-WIRE
FB-EI-30426-000 1m BJ-28486-000
(30Ω Imp.) Noise Canceling 212 140 5.4 2-WIRE
W series
I series
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O series: Designed for headset customers who are looking for a noise canceling electret element in a metal EMI shielded housing
Available in Omni-directional
Waterproof options down to 3m using WP elements Metal head design with metal fl exible boom
Available in 8.0mm down to 4.2mm diameter metal fl exible boom Tactical, Security, Fire and Police and other radio communication headsets
Over the ear, earcup or helmet designs for mounted and non-mounted ground forces Designed for the EK, NR and WP elements series
Reference Rating Microphone
element Directivity
Boom Length Tip-To-
Tip (mm)
Exit Wire Length (mm)
Nominal Boom Dia.
(mm)
Microphone configuration
FB-DO-23511-000 3m WP-23500-000 Noise Canceling 161 150 4.2 2-WIRE
FB-DO-25946-000 3m WP-23501-000 Noise Canceling 74 30 4.2 2-WIRE
FB-HO-25624-000 3m WP-23500-000 Noise Canceling 163 106 5.0 2-WIRE
FB-FO-25581-000 IP54 EK-23024-000 Omni-directional 140 140 5.9 2-WIRE
M series: Designed for headset customers who are looking for a noise canceling electret element in robust waterproof housing
Available in Omni Directional
Waterproof options from 1m down to 20m (per IP67, IP68) Plastic head design with metal fl exible boom
Available in 6.0mm down to 2.7mm diameter metal flexible boom Tactical, Security, Fire and Police and other high end radio communication headsets
Over the ear, earcup or helmet designs for mounted and non-mounted ground forces Designed for EK, NR and WP series elements
Reference Rating Microphone
element Directivity
Boom Length Tip-To-
Tip (mm)
Exit Wire Length (mm)
Nominal Boom Dia.
(mm)
Microphone configuration
FB-EM-30342-000 1m NR-25994-D63 Noise Canceling 190 60 5.4 2-WIRE
FB-EM-30343-000 3m WP-25993-D63 Noise Canceling 190 60 5.4 2-WIRE
FB-EM-30344-000 10m NR-25994-D63 Noise Canceling 190 60 5.4 2-WIRE
FB-EM-30345-000 20m NR-25994-D63 Noise Canceling 190 60 5.4 2-WIRE
FB-EM-30346-000 1m EK-23132-C36 Omni-directional 190 60 5.4 3-WIRE
FB-EM-30348-000 10m EK-23132-C36 Omni-directional 190 60 5.4 3-WIRE
FB-EM-30349-000 20m EK-23132-C36 Omni-directional 190 60 5.4 3-WIRE
O series
M series
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F series: sensor microphone assembly Designed for ruggedized panel mounted applications for outdoor microphone and sensor applications
Available in Omni Directional
Waterproof options from 1m down to 20m (per IP67, IP68) Designed for the EK, NR and WP elements series
Reference Rating Microphone
element Directivity
Exit Wire Length (mm)
Sensor Diameter
(mm)
Microphone configuration
VEK-F-30350-000 1m EK-23132-C36 Omni-directional 200 16 3-WIRE
VEK-F-30351-000 10m EK-23132-C36 Omni-directional 200 16 3-WIRE
VEK-F-30352-000 20m EK-23132-C36 Omni-directional 200 16 3-WIRE
VEK-F-30460-000 1m EK-23132-C36 Omni-directional 10 16 3-WIRE
VEK-F-30300-000 20m EK-23132-C36 Omni-directional 8 16 3-WIRE
VEK-F-30470-000 1m EK-26899-P58 Omni-directional 174
(Shielded) 16 3-WIRE
VWP-F-30609-000 3m WP-30113-000 Omni-directional 100 16 4-WIRE
VWP-F-31161-000 3m WP-30113-000 Omni-directional 200 16 3-WIRE
H series: sensor microphone assembly Designed for ruggedized fixed position and mounted applications for outdoor sensor arrays
Available in Omni Directional
Waterproof options from 1m down to 20m (per IP67, IP68) Conductive plastic shielding housing with shielded cable assembly with shielded cable assembly
Available with extra high SPL circuit design
Custom PCBA options available within the housing cavity Designed for EK, NR, GH and WP series elements
Reference Rating Microphone
element Directivity
Exit Wire Length (mm)
Sensor Length (mm)
Sensor Diameter
(mm)
Microphone configuratio
n
VWP-H-30109-000 3m WP-30113-P03 Omni-directional 21 12.7 211 3-WIRE
VEK-H-30320-000 1m EK-30436-P03 Omni-directional 21 12.7 211 3-WIRE
VEK-H-30108-000 1m EK-26899-P03 Omni-directional 21 12.7 211 3-WIRE
F series
H series
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Accelerometers, Ultrasonic, Dampers and Wax protection
Knowles’ sensors include accelerometers and ultrasonic sensors. Knowles’
accessories are acoustic dampers and wax protection.
Accelerometers are frequently used as contact microphones for radio communications in high noise environments such as firefighting or combat. The accelerometers reproduce voice signals from vibrations at the throat or from bony parts of the head, and are compatible with helmet or headset applications. Ultrasonic sensors are based on Knowles’ MEMS silicon surface mount microphone technology. While Knowles’ industry-leading MEMS silicon surface mount microphone technology, in bottom port configuration offer flat frequency response in the standard audio bandwidth, they are also capable to support even higher frequency bands. Sensor designs are possible across a wide spectrum of applications requiring highly miniaturized solutions for sensing and actuation/signaling. Acoustic dampers are acoustic cloth screens for insertion inside acoustic tubing. These damping elements are used between the receiver outlet and the ear canal to smoothen the frequency response. Wax protection prolongs hearing instrument performance. As the leading designer of hearing aid components, Knowles offers several ways for device manufacturers and end users to effectively address wax buildup. Solutions include WaxBuster and MicroWaxBuster push-piston wax removal systems, and NoWax disposable filter-replacement system.
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Portfolio: KNOWLES BU series accelerometer 7.87 x 5.54 mm BU series accelerometer, also called piezo-ceramic microphone, is frequently used as contact microphones for radio communications in high noise environments such as firefighting or combat. The accelerometer reproduces voice signals from vibrations at the throat or from bony parts of the head, and is compatible with helmet or headset applications. Key features:
• High performance bone conduction • Internal FET amplifier for high sensitivity • Voice intelligibility in a noisy environment • Convenience of wearing (when integrated onto another worn article such as a helmet) • Unobtrusive compared to a close talking boom microphone • Waterproof and heat resistant • Ceramic vibration transducer • High vibration sensitivity • Small size • Wide frequency range • High resistance to mechanical shock • Withstands severe environmental conditions
Model Thickness
Sensitivity @ 1KHz (dB re 1V/g)
DC Supply (V) Max. Current Drain
(uA)
Nominal Output
Impedance @1 KHz (Ω)
“A” Weighted Noise (dBre.
1V)
BU-21771-000 4.06 -45.0±4.5 1.5 50 5200 -103
BU-23173-000 4.06 -39.0±4.5 1.5 50 5200 -103
BU-23842-000 2.24 -40.0±4.0 1.5 50 5200 -103
BU-27135-000 2.24 -45.0±4.5 1.5 300 5200 -103
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Portfolio: KNOWLES Ultrasonic sensor SPU0410LR5H Key features:
• Analog bottom port • Surface mount component, reflow compatible • Micro-sized sensing and actuation • High frequency functionality • Consistent performance in heat and humidity • Wide range of applications • Suitable for array applications such as position & gesture detection
Electrical specifications:
• Sensitivity Range : -38±3dB @1kHz (0dB=1V/Pa)
• Output Impedance : <400 • Standard Voltage : 1.5 – 3.6V
• Current consumption : < 160µA
• S/N Ratio : 63dB @1kHz (0dB=1V/Pa)
Pinout: Dimensions (mm):
PIN OUTPUT
PIN# FUNCTION
1 OUTPUT (DATA)
2 GROUND (GND)
3 GROUND (GND)
4 POWER (VDD)
5 GROUND (GND)
6 GROUND (GND)
ITEM DIMENSION
LENGTH (L) 3.76
WIDTH (W) 3.00
HEIGHT (H) 1.10
ACOUSTIC PORT (AP) 0.25
Typical High Frequency Response & Noise:
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Portfolio: KNOWLES acoustic dampers Dampers are acoustic cloth screens for insertion inside acoustic tubing. These damping elements are used between the speaker outlet and the ear canal to smoothen the frequency response. Various acoustical resistances and sizes are available. Key features:
• Smoothen and shape frequency response • Various acoustical resistances and sizes
Model Color Nominal acoustic
resistance (Ω) Plug (mm)
Screen (mm)
BF-1859-000 White 680 2.08 --
BF-1860-000 Brown 1000 2.08 --
BF-1861-000 Green 1500 2.08 --
BF-1921-000 Red 2200 2.08 --
BF-1922-000 Qrange 3300 2.08 --
BF-1923-000 Yellow 4700 2.08 --
BF-1988-000 White 680 -- 1.12
BF-1991-000 Green 1500 -- 1.12
BF-1995-000 Red 2200 -- 1.12
BF-1997-000 White 680 -- 1.78
BF-1999-000 Grey 330 2.08 --
BF-3034-000 Grey 330 -- 1.78
BF-3035-000 Brown 1000 -- 1.78
BF-3036-000 Orange 3300 -- 1.78
BF-3037-000 Red 2200 -- 1.78
BF-3038-000 Green 1500 -- 1.78
BF-3039-000 Green 1500 -- 1.37
BF-3163-000 Yellow 4700 -- 1.12
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Portfolio: KNOWLES wax protection Key features:
• Prolongs hearing instrument performance • Disposable filter option
Model Description
WB-23402-000 WaxBuster bushing - Red
WB-23403-000 WaxBuster bushing - Blue
WB-23405-000 WaxBuster (single unit bulk) - Red
WB-23406-000 WaxBuster (single unit bulk) - Blue
WB-23408-000 Wax Guard Tube
WB-23409-000 Wax Guard Tube
WB-23410-000 Wax Guard Tube
WB-23606-000 MicroWax Guard Tube
WB-23607-000 MicroWaxBuster (single unit bulk)
WB-23608-000 MicroWax Guard Tube
WB-23609-000 MicroWax Guard Tube
WB-23611-000 MicroWax Guard Tube
WB-23613-000 MicroWaxBuster replacement tool
WB-23614-000 MicroWaxBuster (single unit replacement box)
WB-23616-000 MicroWaxBuster cleaning pad
WB-23631-000 MicroWaxBuster Tube
WB-23632-000 WaxBuster Tube
WB-23633-000 MicroWax Guard Tube
WB-23828-000 NoWax (Dispenser box 10 * 6 pcs)
WB-23832-000 NoWax replacement tool
WB-23833-000 NoWax (single unit bulk)
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Expertise in acoustics
Seltech provides application support to customers.
We have a skilled engineering organization (including an acoustic laboratory) which covers all phases in a design process.
Based on more than 26 years of experience in acoustics, we established our strong and proven application support process as follows:
We will always take the time to listen to your needs and provide you with the most cost-effective options available.
Please do not hesitate to contact us if you need help to design in our acoustic products. We will be pleased to support you.
•Pre-study for best acoustic component selection
•Definition of the best application note
•3D simulation, Analysis & test report
•Test of the soft tools to validate the 3D simulation
•Test of the hard tools before production launch
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Worldwide offices
Europe FRANCE PARIS HEADQUARTERS SAS SELTECH 2, allée des Cerisiers, F-94042 Créteil France Tel.: +33.1.48.92.90.02 Fax: +33.1.48.92.90.03 GERMANY FRANKFURT AM MAIN LIAISON OFFICE Tel.: +49 (0) 6206.1203.403 Mobile: +49 (0) 171.9393.712
USA US NC RALEIGH OFFICE SELTECH USA 2200 Gateway Centre blvd, suite 213, Morrisville, NC 27560 Tel.: +1.919.481.6896 Fax: +1.919.481.6910
Asia CHINA NANJING MAIN OFFICE SELTECH China Trading Co., Ltd. Nanjing Room 2001, Changjiang Science Building, No. 40 Nanchang Road, Nanjing , China 210037 Tel.: +86.25.83.45.54.33 Fax: +86.25.83.45.54.32 CHINA SHENZHEN OFFICE SELTECH China Room 2122 Block B, T-Share Jinniu Square, Taoyuan Road, Nanshan District, Shenzhen, Guangdong Province, China Tel.: +86.755.86.70.39.89 Fax: +86.25.83.45.54.32 HONG KONG LIAISON OFFICE Mobile Hong Kong: +852.6704.2034 Mobile China: +86. 139.23.40.64.40
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