西玛WESTCODE二极管SW14CXC2850整流管W6262ZC140

西玛WESTCODE二极管SW14CXC2850整流管W6262ZC140可控硅(Silicon Controlled Rectifier) 简称SCR，是一种大功率电器元件，也称晶闸管。
它具有体积小、、寿命长等优点。
在自动控制系统中，可作为大功率驱动器件，实现用小功率控件控制大功率设备。
它在交直流电机调速系统、调功系统及随动系统中得到了广泛的应用。
可控硅分单向可控硅和双向可控硅两种。
双向可控硅也叫三端双向可控硅，简称TRIAC。
双向可控硅在结构上相当于两个单向可控硅反向连接，这种可控硅具有双向导通功能。
其通断状态由控制极G决定。
在控制极G上加正脉冲(或负脉冲)可使其正向(或反向)导通。
这种装置的优点是控制电路简单，没有反向耐压问题，因此特别适合做交流无触点开关使用。
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