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Template 4.0

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Molex’s 0.25mm pitch top-contact FPC connector provides greater PCB space savings and contact reliability--even when subjected to shock or vibration--compared to similar competitive designs

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Spring terminal design provides greater assurance of stable electrical contact, even when subjected to shock or vibration.

Molex’s top-contact 0.25mm pitch FPC connector is the latest edition to Molex’s range of 0.25mm pitch FPC solutions for applications such as mobile phones and digital cameras. Molex is currently the only maker to offer both top-and bottom contact designs, as well as different height options and features that allow space for components under the FPC cable (on 503320 type).

The 503300 top-contact version was designed to provide customers more design flexibility. This version enables customers to place a top-contact version on one board and wrap the FPC cable under to mate with a bottom-contact type.

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A unique spring-terminal design provides contact force on the actuator to keep it in place, and on the cable for secure electrical contact--even when subjected to shock or vibration. A robust front-flip Easy-OnTM actuator design protects the actuator from damage or breaking by operator handling.

With an ultra-narrow depth of 3.20mm, this series provides PCB space savings compared to competitive designs. Available in up to 53 circuits, it also offers the highest upward circuit-size range of any competitive version.

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The ZIF design provides easy FPC insertion without the risk of bending or damaging the cable. The 503300 version uses industry-standard 0.20mm thick FPC, which provides cost savings and easier sourcing compared to competitive 0.12mm FPC cable designs.

Unlike competitive styles, the 503300 version includes solder tabs for superior PCB retention. The footprint pattern and FPC pitch tolerances are the same as Molex’s other 0.25mm pitch versions, which provides customers with a choice of connector styles without needing to change the PCB layout.

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Smart phone/mobile phone

Tablet PC

Car audio

Digital still camera

Digital video camera

Navigation equipment

Portable game

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Spring-terminal design Secure electrical contact even when subjected to shock or vibration

Zero Insertion Force (ZIF) contact design

Smooth and easy cable insertion and extraction

Same FPC tolerances and footprint pattern as other Molex 0.25mm FPC connectors

Can choose from various 0.25mm series without needing to change board design

Compact overall dimensions Space savings

Strong mechanical actuator design Protects against actuator breaking off during operator usage

PCB solder tabs Provide secure PCB retention

Pitch: 0.25mm

Height: 1.20mm

Width: 3.20mm (Closed Actuator)

Length: 0.25 x (N-1) + 2.0mm

* N : Pin Number

Rated Voltage: 50V (MAX.)

Rated Current: 0.2A (MAX.)

FPC Thickness: 0.2mm (+/- 0.03)

Low-Halogen Compliant (HSG/ACT: V-0 Grade)

Circuit Sizes : 21, 29, 41, 43, 53

503300 Series

P/N : 503300-**10

1.1

（1

.74）

Va

cu

um

are

a

0.25X（N-1)+2.0 （1

.99）

Depth

2.75

（0

.25）

Depth(Act closed) 3.2

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FPC insertion depth and contact position is the same as Molex’s existing 0.25 FPC series (503320 / 502078).

Although this is Front Flip type, FPC and terminal are not touched when nominal FPC is inserted. (FULL-ZIF design)

1.2

(0.7)

(1.85)

(1.45)

Nominal FPC (t=0.2)

Odd term section

Even term section (0.25)

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Tolerance of Pitch

direction (red circle)

is same as Molex’s other 0.25mm pitch series

Terminal tail positions are same as existing bottom contact 0.25 series (503320/502078).

Customers can design in various Molex 0.25mm pitch FPC connectors without changing board layout

503320/502078(Existing series) :

bottom contact

503300 series : Upper contact

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Odd terminal section (when FPC inserted)

Even terminal section (when FPC inserted)

Unique spring-terminal design provides upward force on actuator to prevent it from opening,

and downward force on the FPC pad for reliable electrical contact--even when subjected to shock or vibration.

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Odd terminal section

Even terminal section

Actuator

Housing

Unique hook shape of terminals helps keep acuator in upright position for ease of use.

Pitch 0.25mm Pitch

Durability 10 cycles

Voltage 50V

Current 0.2A

Operating Temperature -40 to +85°C

Contact Resistance

(ODD) 80 milliohms max.

(EVEN) 60 milliohms max.

Insulation Resistance 50 Megaohms min.

Dielectric Strength 150V AC

Series 503300 503320 502078 ( Long

Actuator) 502078 （Short

Actuator）

Picture

Dimension Height 1.20 1.65 1.00 1.00

Depth 2.75 (3.20) 2.75(2.98) 2.75(2.98) 2.75(2.75)

Circuits 21,29,41,43,53 25,37,41 13,37,39,61 17,2125,33,39,5

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Mounting Configuration R/A R/A R/A R/A

Style SMT SMT SMT SMT

Contact Surface Upper Bottom Bottom Bottom

Terminal Plating Contact Gold Gold Gold Gold

Tail Gold Gold Gold Gold

Material Housing E473i E473i E473i E473i

Actuator 4T 46HF4550 46HF4550 46HF4550

Low Halogen ○ ○ ○ ○

Actuator Front Flip Front Flip Front Flip Front Flip

FPC Thickness 0.2±0.03 0.2±0.03 0.2±0.03 0.2±0.03

FPC with EAR, without EAR None None None None

Rating

Rated Current AC/DC 0.2A AC/DC 0.2A AC/DC 0.2A AC/DC 0.2A

Rated Voltage AC/DC 50V AC/DC 50V AC/DC 50V AC/DC 50V

Voltage Resistance AC 150V AC 150V AC 150V AC 150V

Insulation Resistance 50 Megohms

min. 50 Megohms

min. 50 Megohms

min. 50 Megohms

min.

Order No. Circuits Plant No. for Samples

503300-2110 21

3109 (US), 1199 (Japan), 5102 (MIG),

1399 (Taiwan), 2299 (Korea)

503300-2910 29

503300-4110 41

503300-4310 43

503300-5310 53

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