Overlay Materials: The most commonly used base materials for membrane switch keypad are polyester and polycarbonate.
Rear Adhesive: 3M 467MP, 3M 468MP, etc.
Standard Tolerances: +/-.010 inch.
Matching color: Pantone and RAL color matching system.
Tail, pin and circuit layout: subject to customers detailed requests.
Type of buttons for membrane switch:
# Non tactile
# Tactile with stainless steel domes
# Tactile with poly domes on the circuit
The main properties of custom design electronic membrane keypad
1. PC /PET as overlay (control panel)
2. Flat keys or tactile type
3. Embossed button with good tactile feel
4. Pre-assemble with or without metal domes
5. Water-resistant, dust-proof, gas-proof and scratch-resistant
6. Long life cycle.
Product Description General Specification
- - - -
Environmental | Operating Temperature | -20 to 65 C (-4 to 149 F) |
Storage Temperature | -40 to 85 C (-40 to 185 F) |
Seals | 3M permanent acrylic adhesive resists against dust, water, oil and moisture conditions. |
Special sealing options are available for wet environments. |
Mechanical | Travel | .007 inches to .015 inches |
Operating Force | 4oz to 8oz |
Electrical | Operating Voltage | 30 volts maximum |
Operating Current | 10 microamps to 100 milliamps, resistive |
Closed Circuit Resistance | 100 ohms typical, dependent on size and layout |
Open Circuit Resistance | 10 megohms |
Operating Power | 1 watt maximum |
Circuitry | X-Y matrix or one side common |
- - - -