Silicon Controlled Rectiier(SCR)-Working

SCR:

A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a four-layer solid state current controlling device. The name "silicon controlled rectifier" or SCR is General Electric's trade name for a type of thyristor.











Working:
This device is generally used in switching applications. In the normal "off" state, the device restricts current to the leakage current.