►Product name：Tactile FPC circuit SMD built-in membrane keypad
►Keyword: fpc membrane keypad,Braille membrane keypad,Copper printed circuit assembled membrane keypad,RGB led membrane switch,SMD membrane keypad,tactile membrane keypad.
►Specification
①Full size: 39.24*19.57mm
②Graphic overlay: Autotex F150
③Retainer layer: PET 0.125mm
④Circuit: copper printed circuit
⑤Back adhesive: 3M467
⑥Key type: metal dome 180g LED: RGB*1 ; Green 0603*3
⑦Stiffener thickness 0.3mm Golden finger at back side
⑧Brailles on the button: diameter 1mm*6
Application:
It is used on hunting crossbow, the leds are bright, the keys are tactile. Brailles design is more humanized.
We provide following customs service:
1. Tactile & Non-Tactile solution
2. FPC Flex Circuit with Embedded LED’s, Resistors & Sensors
3. Able to make to customer’s waterproof requirement & UV protection design
4. Electroluminescent Backlighting solution
5. ESD Anti-Static Design: using Aluminum Foil, Printing shielding layer
►Structure presentation
►FPC membrane advantages compared with silver film switch
①Low resistance（10% of silver film switch）
②load large current（Normally 1Acurrent/0.5mm line）
③Components(LED and resistance)can be welded more firmly
④Good oxidation resistance, suitable for humid environment
⑤The connector at the end of cable can be made to smaller to save space.
►Normal material:
（1）Graphic overlay material：
| |
Finish |
Specification |
| PC(polycarbonate) |
Gloss |
0.175/.25/.35/.5 mm thickness |
| Matt |
0.175/.25/.35/.5 mm thickness |
| PET (polyester) |
Fine Texture |
0.15/.20 mm thickness (Autotex F150/F200, imported) |
| Velvet Texture |
0.15/.20 mm thickness (Autotex V150/V200, imported) |
| Gloss with Hard Coat |
0.18 mm thickness |
（2）FPC：
1. ounce copper,total thickness 0.135~0.15mm
2. back adhesive material:3M467, 3M468, 3M9080A or others alternative
3. connector alternative :female:2.54mm；ZIF 1.0mm，ZIF 0.5mm or others specified
►Working environment
Temperature：-20~80℃
Humidity：40℃，RH <95%
►Electrical performance
Circuit voltage：DC 50V MAX (others need meet components）
Circuit current：1A MAX
Closed circuit resistance：normally <10 ohm（details see products designing and circuit length）
Button working life：>0.5 million times
Response time:<10 mS
►Notice on mounting and operation
①Clean up the surface where the switch is bonded and make sure it is flat,without rust,oil and dust.
②Compare the size to membrane switch where need be stick ,check if position is correct.
③Tear off 10mm length of the bottom release paper from side.
④ Put the tail through the back board. Please do not pull the tail with force. The minimum bending radian of the lead wire is R=2mm. The hold edge must smooth in case of damaging the tail.
⑤Align the panel with the sticking place and press on the fixed part, then slowly remove the rest release paper and flat the panel.
⑥The stick process is finished in one time.Switch can not be repeated stick.
⑦Please make sure the bending angel of panel is lower than 15 degree when sticking.
⑧Please do not pull the connector so hard when in connection. For female connector, please hold the house when in connector.
⑨Do not pull the lead wire directly. For FPC( Flexible printed circuits) structure, please unlock the socket before plugging.
⑩Note:To assure the switch life,please put it on the table flatly when testing the hand feeling.Do not pinch the button when holding it on hand.
