The main properties of the membrane switch:
Overlay Materials: The most commonly used base materials are polyester and polycarbonate.
Rear Adhesive: 3M 467MP, 3M 468MP, etc.
Standard Tolerances: +/-.010 inch (+/-0.25mm).
Matching color: Pantone and RAL color matching system.
Tail, pin and circuit layout: subject to customers detailed requests.
to provide you membrane switches with other special requirements, such as Shielding, Windows/Lens Coating, Embossing, Embedded LEDs, UV glossy/matte/textured, etc.
Electrical Performance:
Operating Voltage: 0~35 V DC.
Operating Current: 100 MA Max.
Operating Contact Resistance: Less than 100 OHMS typical
Contact Bounce: Less than 5 Milliseconds typical.
Conductors: Printed silver conductive inks or carbon blend.
RFI and ESD Shielding: Available in most configurations.
Mechanical properties:
Life Expectancy: 1,000,000 actuations per switch position
Actuation Force: 6~24 ounces (170~680g), Range depending on customer specification.
Switch Travel: .005" to .030" (0.1~0.8mm) typical.
Overall Thickness: .020" to .050" (0.5~1.3mm) typical.
Environmental adaptability:
Storage Temperature: -40°C (-40°F) to +70°C (158°F).
Storage Altitude: Sea level to 35,000 feet.
Operating Temperature and Altitude: -30°C (-30°F) to +75°C (170°F). Can be designed to operate in most environments.
Humidity: No delamination after 24 hours at 80°C and 90%RH.
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