China Metal Dome Membrane Keypad Switch

metal dome membrane keypad switch be made up of soft insulated material layer and conductive material layer, is a kind of multilayered structured self-unlocked press switch. Press switch, panel, functional mark, read display window, indicator light transparent window, switch circuit derivation line and the character, sign, and decorative contents in general panel make up of the electronic operative system. It is now widely used in many products in various professions.
Basic Parameter:
1. Insulative resistance: ≥ 100Ω
2. base material pressure: 150VDC
3. Physical performance: Service life: 1000000 times Touching
4. Environment adaptability: Operating temperature: -40º C-80º C
5. Work humidity: ≤ 98%
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MEMBRANE KEYBOARD SWITCH STANDARD SPECIFICATIONS1.Electrical(1)Maximun Circuit Rating:35V DC,100mA,1W(2)Contact Resistance:10Ω~500Ω(3)Insulation Resistance:100MΩ at 100V DC(4)Dielectric Withstand:250V Rms(50-60Hz 1min)(5)Contact Bounce:5ms or less2.Mechanical(1)Actuation Force:Flat type 60g~300g(2~10OZ)Tactile type 150g~400g(6~14OZ)(2)Switch Stroke:Flat type 0.1~0.5mmTactile type 0.6~1.5mm(3)Life Expectancy:Flat type Five milllion closures or more Tactile type one million closures or more3.Environmental (1)Operating Temperature:-40°c~+80°c(2)Storage Temperature:-40°c~+85°c(3)Humidity:40°c,90%~95%,for 240 hours