Actual Size
MIL DASH #
SRF MINIMUM (MHz)
DASH NUMBER*
INDUCTANCE (µH)
Q MINIMUM
TEST FREQUENCY (MHz)
DC RESISTANCE
MAXIMUM (OHMS)
CURRENT RATING
MAXIMUM (mA)
TOLERANCE
SERIES 1840R1840
Molded Unshielded RF Coils
Military Specifications
MS75008 (LT4K); MS75101 (LT10K)
Physical Parameters Inches MillimetersLength 0.437 ± 0.010 11.10 ± 0.25Diameter 0.187 ± 0.010 4.75 ± 0.25Lead Size AWG #22 TCW 0.025 ± 0.002 0.635 ± 0.051Lead Length 1.44 ± 0.12 36.58 ± 3.05
Current Rating at 90°C Ambient
LT4K 35°C RiseLT10K 15°C Rise
Operating Temperature Range
LT4K –55°C to +125°C;LT10K –55°C to +105°C
Maximum Power Dissipation at 90°C
LT4K 0.385 WLT10K 0.165 W
Weight Max. (Grams) 0.95
Marking DELEVAN; inductance with units and tolerance;date code (YYWWL). Note: An R before the date codeindicates a RoHS component.
Example: 1840R-18K
Front: Reverse: DELEVAN 3.3uH±10% 3.3uH±10% R 0910A
Packaging Tape & reel: 12" reel, 2500 pieces max.; 14"reel, 3000 pieces max.
g No MS # Issued
Made in the U.S.A.
RF Inductors
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: [email protected] • www.delevan.com
MIL I TARY
AP P R O V E D
MS75008– SERIES 1840 PHENOLIC CORE (LT4K)
-00M -02M -04M -05M -06M -07K -08K -09K -10K -11K -12K -13K -14K -16K
MS75101– SERIES 1840 IRON CORE (LT10K)
-18K -20K -22K -24K -26K -28K -30K -32K -34K -35K -36K -38K
305028202360186018601670152012401050835755610555525
1020900775670580560455385324265251214
0.030 0.035 0.050 0.080 0.080 0.100 0.120 0.180 0.250 0.400 0.485 0.740 0.900 1.100
0.120 0.155 0.210 0.280 0.375 0.400 0.600 0.850 1.200 1.800 2.000 2.750
510415350300300270250220200180170150140120
706560505048423630302422
25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 7.9 7.9 7.9 7.9 7.9
7.9 7.9 7.9 7.9 7.9 7.9 7.9 2.5 2.5 2.5 2.5 2.5
5555555555555555553535353535
353535353535355055606065
± 20%± 20%± 20%± 20%± 20%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%
± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%
0.15 0.22 0.33 0.39 0.47 0.56 0.68 0.82 1.00 1.20 1.50 1.80 2.20 2.70
3.30 3.90 4.70 5.60 6.80 8.20 10.0 12.0 15.0 18.0 22.0 27.0
212223g24252627282930313233
123456789101112
Optional Tolerances: J = 5% H = 3% G = 2% F = 1%
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
Parts listed above are QPL/MIL qualified
1/2009
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