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One key matrix membrane switch£¬ with connect PCB connections wire Panel Size: 35 * 20MM Circuit level: 3.5VDC£¬ 100mA£¬ 1W Standard sheet resistance: <1Ω Contact resistance: <1Ω Insulation resistance: 150MΩ 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 ° 32H Test Humidity: 90% 32H Vibration: 20G's msx£¬ (10-200Hz£¬ MIL-STD-202£¬ M204 Condition) Line thickness: ≤ 0.13mm Life: 500£¬000 times or more