MaiTech 03120256 4 x 5 Matrix Keyboard / Membrane Switch - Green
4 x 5 digital matrix membrane switch ,Panel Size: 75 x 85MM 180MM Length; Circuit level: 3.5VDC 100mA 1W; Standard sheet resistance: <1ohm; Contact resistance: <1ohm; Insulation resistance: 150Mohm 100V; Dielectric withstanding voltage: 250V Rms (50-60Hz 1min); Contact Bounce: ≤ 3ms; Storage temperature: +15~35'C; Storage humidity: 70% ~ 90%; Test temperature: -10~70'C 32H; Test Humidity: 90% 32H; Vibration: 20G's msx (10-200Hz MIL-STD-202 M204 Condition); Line thickness: ≤ 0.13mm; Life: 500000 times or more