China Membrane Keypad with Embossed Key

1. Material: PET/Lexan with different thickness and finish
2. Button effect: Embossing + metal domes respectively for good tactility and perfect feedbacks.
Also we can offer the other options: A. Embossing, no metal domes;
B. metal domes, no embossing
C. No embossing, no metal domes (flat type)
3. LEDs can be embedded; Bi-color LEDs are also available.
4. LCD clear window can be made.
5. Colors for graphics are matched with Pantone No.
6. General structure: Overlay--Spacer under overlay--Fixed layer(if metal domes added)/Top circuit--(metal domes)--Spacer above lower circuit--Lower circuit --Adhesive
7. Flexible cable for connecting with 2.54mm ptich/1mm pitch/0.5mm pitch

1.Electronic characteristics
Circuit rating
35V (DC), 100mA, 1W
Contact resistance
10 Ω ~500 Ω (According the trace length and materials)
Insulation resistance
> 100M Ω 250V DC
Contact bounce
≤ 5ms
Dielectric withstand
250VRms (50~60Hz 1min)
Life expectancy
flat type ≥ 5 million times, tactile type ≥ 1 million times
2.Mechanical Properties
Actuation force
flat type: 57-284g (2-10 Oz), tactile type: 170~397g (6~14 Oz)
Switch stroke
flat type: 0.1~0.5mm, tactile type: 0.6~1.5mm
3.Environmental parameters
Operating Temperature
-40 ° C~+80 ° C
Storage temperature
-40 ° C~+85 ° C
Humidity
40 ° C, 90% ~95%, 240 hours