Membrane keypads Structure
1.Material: matte PC (smooth), gloss PC + matte oil, gloss PC, matte PET , gloss PET

2:Adhesive layout: 3M467 or 3M468 or other adhesive.
3.LED windows: transparent, translucent and matte
4.Embossed keys: no embossed keys and domes, domes without embossed keys, embossed keys without domes, embossed keys ,domes, Flat without Tactile Effect, Embossing with Tactile Effect, Embossing with metal Dome

5.Circuit layout: 0.1mm,0.125mm,0.188mm or USE FPC
6.Adhesive: 3M9448,3M9080,3M467,3M468, and no adhesive
7.Tail: tail with clear mask or green mask

8.Connnector:2.54mm pin pitch female connector or ZIF connector

9.Total Thickness: 0.5mm-1.5mm.  Also all specification can be customized.
 
Performance indicators: 
1. Electronic characteristics 
Circuit rating: 35V (DC), 100mA, 1W
Contact resistance: 10Ω--500Ω (According the trace length and materials to comfirm) 
Insulation resistance:> 100MΩ 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

4.Applications:

Medical Equipment

Telecommunications apparatus

Military industries

Household appliances

Security systems

Industrial controls and toys etc.