Waterproof Membrane Switch:

1) Gasket design for the circuit part;

2) Meet NEMA-4 standard;

Spec.:

Material: matte PC (smooth), gloss PC + matte oil, gloss PC, matte PET , gloss PET;
Thickness: 0.05---1.0mm;
LED windows: transparent, translucent, matt;
Embossed keys: no embossed keys and domes, domes without embossed keys, embossed keys without domes, embossed keys and domes;
Adhesive: 3M9448,3M9080,3M467,3M468, and no adhesive;
Tail: tail with clear mask or green mask;

Specialize in manufactuing membrane keypad:
Overlay+circuit+LED+metal dome or poly dome array+connector+double side tape;
EL backlight+Rubber keys;
Aluminum plate+Rubber keys;
Metal domes;
Flat without Tactile Effect;
Embossing with Tactile Effect;
Embossing with Metal Dome
Membrane Switch with FPC

Performance Indicators:
1. Electronic characteristics: 
Circuit rating: 35V (DC), 100mA, 1W;
Contact resistance: 10Ω--500Ω (According the trace length and materials to confirm);
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
Humidity: 40C , 90% -95%, 240 hours;