基本参数 
1.额定范围Rating: 50mA 12VDC
2.接触电阻Contact Resistance : 50mΩ max(initial)
3.绝缘电阻Insulation Resistance: 100MΩ（minDC 250V）
4.耐压强度Dielectric Strength : AC250V(50/60Hz for 1minute)
5.机械寿命Electrically Life:100,000cycles
6.环境温度Environment temperature: -25℃-70℃
7.操作力度Operating Force: 160(±30gf)