membrane switch

membrane switch : 1.Electrical Properties for the membrane switch keypad: Electrical Level: 35V(DC), 100mA,1W Contact Resistance: 10Ω 500 Ω Insulation Impedance: 100MΩ/100V Dielectrics Voltage-resistance: 250VRms(50 60Hz 1min) Chattering Time: ≤ 5ms Life Expectance: Planar type ≥ 5,000,000; Tactility type ≥ 1,000,0002.Mechanical Properties for the push button switch: Operating Force: Planar type 57 284g(2 10oz);Tactility type 170 397g(6 14oz) Switch Stroke: Planar type 0.1 0.5mm; Tactility type 0.6 1.5mm3.Environmental and Storage Conditions for the push button switch: Operation Temperature:-40°C +80°C Storage Temperature:-40°C +70°C Humidity:40°C, 90% 95%, 240hr.,Vibration:20G, max