Specifications
1. Second layer printing membrane key
2. Durable
3. Scratch resistant
Pass ISO9001: 2008
Membrane key switch
Overlay Materials: The most commonly used base materials 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 Switch:
Non tactile
Graphics
Tactile with stainless steel domes
Tactile with poly domes on the circuit
Notice: We have the capacity to provide you membrane switches with other special requirements, such as Shielding, Windows/Lens Coating, Embossing, Embedded LEDs, UV glossy/matte/textured, EL, LED backlingt, rubber keypad etc.
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.
| Electronic Characteristic | <35V ( DC ) <100mA 1W | Life Expectancy | flat type ≥ 500 million times, tactile type: ≥ 100 million times |
| Contact Resistance | 10Ω--500Ω (According the trace length and materials to confirm) | Operation Temperature | -40 °c ~ + 80 °c |
| Insulating Impedance | >100MΩ 250V DC | Stock Temperature | -40 °c ~ + 85 °c |
| Resistance of the wire | <1 Ω/cm width 1.27mm | Humidity | + 40 °c 90 % ~ 95% 240 hour |
| Operation 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 |