what is a silicon controlled rectifier used for
The symbol for SCR is also shown in figure which is very familiar to Diode's Symbol. An SCR is a short form for Silicon Controlled Rectifier, Which is a three terminal semiconductor device.This device is used for rectification, regulation and inversion etc. It is also used as a controlled switch in high rating instruments. That is why this device has such importance.It is a Unidirectional Power Switch.he symbol for SCR is also shown in figure which is very familiar to Diode's Symbol. An SCR is a short form for Silicon Controlled Rectifier, Which is a three terminal semiconductor device.