Thyristors
Thyristor or Silicon Controlled Rectifier (SCR) is a Unidirectional semi conductor device which is used in AC load switching applications using its Gate terminal. This is a four layer solid state device which is current controlled.

Thyristor or Silicon Controlled Rectifier (SCR) is a Unidirectional semi conductor device which is used in AC load switching applications using its Gate terminal. This is a four layer solid state device which is current controlled.