China Membrane Switch Keypad

Membrane keypad
(1)Specification
Graphic overlay
Material available in PET(polyester) or PC (polycarbonate) material. PET is the best
The options of surface effect can be gloss finish, velvet/matte finish, etc
Embossing
Available in pillow, rim or dome. Above the circuit layer, it can be metal(stainless steel) dome or polydome which has a life cycle of over 1 million button press times before showing any sign of wear.
Circuit layer
Available with LEDs in a variety of colors and standard male/female connectors
LCD/LED windows
Can be specified to be clear, color transparent or add anti-glare fnish
Adhesive
3M 467MP, 468MP or others suitable for plastic surface or some metal backers

ElectricalMaximum Circuit Rating35V(DC),100mA 1WContact Resistance10-500(depending on trace length&material used)Insulation Resistance≥100MΩ at 100VDielectric Withstand250V Rms(50-60Hz 1 min)Contact Bounce≤5msLife ExpectanceyFlat type≥5,000,000 times Tactile type≥1,000,000timesMechanicalActuation ForceFlat type57 to 284g(2 to 10 OZ)Tactile type170 to 397g(6 to14 oz)Switch StrokeFlat type0.1 to 0.5mmTactile type0.6 to 1.5mmEnvironmentalOperation TemperatureFlat/metal dome-20°C to + 80°CPoly dome-20°C to + 55°CStorage TemperatureFlat/metal dome-40°C to + 80°CPoly dome-40°C to + 60°CHumidity40°C,90% for 240 hoursVibration20G's max(10-200Hz,MIL-STD202,M204,Condition B)