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membrane keyboard

Membrane switches is a type of keypad, which can be touched lightly. It integrates switch key, membrane panel, marker, symbol, display functions and plate, as a new type electronic components and parts began early 1980.
1)Items——membrane switch, keypad, membrane keypad, keyboard switch, switch panel, membrane panel, membrane overlay, membrane faceplate for variety electronic industries. 
2) Material——available in Polyester (PET) or Polycarbonate (PC).In experience we are s est that PET is the best choice.
3) Surface——gloss & smooth ,velvet,matte & coarse finish, semi-gloss with semi-laminate.
4) Embossing——Dome above the circuit layer, it can be metal(stainless steel) dome
5)Circuit layer——Available with LEDs in a variety of colors and standard male/female connectors
6)Adhesive——many brand for your choice: 3M, SONY, COCKTAILS, FOURPILLARS and so on
8)Feature & performance:
a) Maximum circuit rating——35V DC, 100mA, 1W
b) Contact resistance——10 - 500Ω
c) Insulation resistance——100mΩ at 100V DC
d) Dielectric withstand——250V Rms (50 - 60Hz 1min)
e) Contact bounce——5ms or less
f) Actuation force
f-1) Flat type 60 - 300g (2 - 10oz)
f-2) Tactile type——150 - 400g (6 - 14oz.)
g) Switch stroke
g-1) Flat type 0.1 - 0.5mm
g-2) Tactile type—— 0.6 - 1.5mm
h) Life expectancy
h-1) Flat type——5,000,000 closures or more
h-2) Tactile type——1,000,000 closures or more
j) Surface hardness——3H or more
k) Operating temperature——  -40°C ~ +80°C
l) Storage temperature—— -40°C ~ +85°C
m) Humidity——90% - 95% (40°C) for 240hrs
9)Thickness——between 0.9mm-2mm 
10)Package——sheet in foam bag and in carton box;
11)Lead time——10 days at least after payment;
12)Delivery——by UPS or DHL with excellent service; If the total weight of goods beyond 40kg, we s est ship the goods by sea;
13)For quick and reasonable quotation, artwork or real sample will be appreciated.
As a manufacturer, we can ensure the material quality, deliery time, and stable prices for the products.