www.elecsound.cn standard Resistance Range…………………………………10Ω―2MΩ (Resistance Tolerance)…………………………………………±10％ (Terminal Resistance)…………………………………………≤2Ω (Contact Resistance Variation)………………………………≤3％R或3Ω (Insulation Resistance)…………………………………………R1≥1GΩ (Winthstand Voltage)…………………………………………101.3Pa 600V,8.5kPa 350V (Effective Electrical Travel)………………………………22±2 cycles 　 Envlonment Characteristics (Rated Power)……………………………＋70℃ 0.75W，＋125℃ OW (Temperature Range)………………………………………－55℃―＋125℃ (Temperature Coefficent)……………………………±250，±100ppm／℃ (Temperature Variation)………………△R≤±1％R，△(Uab／Uac)≤±1％ (Vibration)……………………390m／s2，4000 (Collision)………………10―500HZ,0.75mm,或98m／s2,6h (Climate Category)………………………△R<±3％R，R1≥100MΩ (Electrical Endurance at 70℃)…………………………0.75W,1000h,△R≤±10％R (Mechanical Endurance)………………………22±2 cycles,△R≤±10％R (Steadydamp-heat)………………………△R<±3％R，R1≥100MΩ