南京宏聚电子有限公司：钮子开关​Rating：3A 120VAC OR 28VDC ContactResistance：20mΩ(Max) InsulationResistance：1000MΩDielectric Strength：1500VAC For 1 MinuteTemperature Range：-30℃～+85℃Safety Approal：UL CUL CQC ROHSElectrical Life:30000Make-and-break-Cycles At Full Loadwww.njhjdz.com