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Product Description
Membrane keyboard switch is a conductive keypad panel
with unique cosmetic design. We offer full range designs
of membrane keyboard switches:
Flat and all embossed key type with either metal dome
....or mylar dome.
SMT components, LED back light effect, EL back light.
Jumper wire.
Selective texture with choices of clear, velvet and coloured
....display window.
EMI, RFI, or ESD shielding.
Tail termination - either male or female connectors.
Waterproof type (IP65).
Through -hole type.
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Standard Specification
Electrical
Maximum Circuit Rating 35V( DC)100mA 1W
Contact Resistance10£[~500£[ (depending on trace length & material used).
Insulation Resistance100M£[ at 100V DC
Dielectric Withstand250 V Rms (50~60 Hz 1 min.)
Contact Bounce¡Ø5ms
Life ExpectancyFlat type ¡Ù Five million colosures
Mylar type ¡Ù 2 million colosures
Metal type ¡Ù 1 million colosures
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Mechanical
Actuation ForceFlat type = 60 to 300 g (2 to 10 oz)
actile type = 180 to 400 g (6 to 14 oz)
Switch StrokeFlat type = 0.1 to 0.5mm
Tactile type = 0.6 to 1.5mm
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Environmental
Operation TemperatureFlat/Metal dome: -40 °C to +80 °C
Poly dome: -20 °C to +55 °C
Storage TemperatureFlat/Metal dome: -40 °C to +85 °C
Poly dome: -40 °C to +60 °C
Humidity40 °C , 90% ~ 95% for 240 hours
Vibration20 G's0 max(10-200 Hz¡BMIL-STD-202¡BM204¡BCondition B)