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Membrane keypad Key Specifications/Special Features: Material: matte PC (smooth), gloss PC + matte oil, gloss PC, matte PET , gloss PETThickness: 0.05---1.0mmLED windows: transparent,translucent,matteEmbossed keys: no embossed keys and domes, domes without embossed keys, embossed keys without domes, embossed keys and domesAdhesive: 3M9448,3M9080,3M467,3M468, and no adhesiveTail: 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 FPCPerformance 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 ≥ 500 million times, tactile type: ≥ 100 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