Membrane switch spec:
1. Maximum Circuit Rating: 35VDC, 100mA, 1W
2. Contact Resistance: 10~ 500 ohm
3. Insulation Resistance: 100M ohm at 100VDC
4. Dielectric Withstand: 250Rms (50~60Hz per min)
5. Contact Bounce: <5ms
6. Actuation Force:
a) Flat type 60 ~ 300g (2 ~ 10oz.)
b) Tactile type: 150 ~ 400g (6 ~ 14oz.)
7. Switch Stroke:
a) Flat type 0.1 ~ 0.5mm
b) Tactile type: 0.6 ~ 1.5mm
8. Cable pitch: 2.54mm, 2.50mm, 1.27mm, 1.25mm
9. Dimension tolerance: +/-0.2mm
10. Operating Temperature: -20 ~ +70 C deg
11. Storage Temperature: -40 ~ +80 C deg
12. Humidity: 40 C deg, 90% ~ 95% for 240 hours
13. Life expectancy:
a) Flat type: 5,000,000 closures or more
b) Tactile type: 1,000,000 closures or more

Sinodel Electronic Holding Ltd is a leading switching manufacturer of China, specialized in production of high quality membrane switch / keypad, nameplate, graphic overlay, FPC, touch screen and EL backlight.