Aluminum plate membrane switch: Thickness is above 0.7mm, Pressing life-span is over one million times, have fine hermetic ability: Water and dust prevention, guard against a harmful gas. Can be designed according to the whole demandant, the color and picture can be changed, key shape can be selected, the character, the brand and the window can be collocated arbitrarily. Meanwhile, it have the characteristics of low cost and long life-span. 

1. Electricity performance: Working voltage: ≤50VDC 
Operating current: ≤100mA 
Contact resistance: 0.510Ω 
Return route resistance: 
Generally≤150Ω, specially according 
To customer request 
Switch power: 0.25500Mw 
Insulative resistance: ≥100Ω 
Base material pressure: 150VDC 

2. Physical performance: Service life: 1000000 times Touching 
With joint forces: 15450g 
Snapping back time: 10s 
Closed displacement: 0.10.4ms(not touching) 
0.41.0ms(with touching) 

3. Environment adaptability: Operating temperature: -1070 
Depositing temperature: -4070 
Work humidity: 95% 
Altitude: 04500 meters 

4. Machine capability: External dimension: 400*800MM 
Key size: According to customer request 
Key spacing: >1.5MM 
Line wide: ≥0.5MM 
Resisting vibration: (Reference to MIL-STD-202)