►Product name：IMPR1 MICROPROCESSOR-BASED RELAY PROTECTION AND AUTOMATICS DEVICES FRONT PANEL FPC MEMBRANE KEYPAD
►Keyword:fpc membrane keypad,front fpc membrane keypad,printed circuit membrane keypad,FPC circuit membrane switches.
►Specification
Specification:
Overall dimension: 200*165mm
Graphic overlay: F200
Base material: 1 OZ copper, 1mil PI, FPC thickness 0.13mm
Back adhesive: 3M 300LSE
Led: red and green each 1 piece
Connector pin: 0.5mm with stiffener 0.3mm thickness
Application: Microprocessor-based devices of the ImPR1 series are designated for relay protection, automation, and control of systems generating, transmitting, and distributing electric power with voltage from 6 to 110 kV.
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
Our suggestion:
Usually if the membrane switches need assembled many LEDs, then we suggest to use FPC circuit, it can get more stable LED soldering quality. For the normal application the PET circuit is enough, which is more economical. In addition if the conductor pitch is 0.5mm, although we also can print it, but we still suggest to use FPC circuit. Because of that 0.5mm pitch is too small and it is easy to occur the short circuit problem. If you have any question, please feel free to ask us!
►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.
