The BT136S-800,118 is a quad symmetrical thyristor from WeEn Semiconductor. It is designed for the switching and phase control circuit of AC motors. It features an insulated package, high surge current capability, and locking time of less than 1.5 µs. The device offers 800 V blocking voltage, low on-state voltage drop, high commutation capability, and low switching losses. It is suitable for use in applications such as soft starters, lamp dimmers, LC ballast, and motor speed control.