SKT50/04C – SEMIKRON

The SKT50/04C is a phase-control thyristor manufactured by SEMIKRON, designed for applications requiring controlled rectification of AC voltage. This device is a stud-mounted thyristor featuring an M8 threaded stud for mechanical attachment and heatsinking. The “50” in the part number designates a nominal average on-state current (ITAV) of 50 Amperes. The “/04” indicates a voltage grade of 400V repetitive peak reverse voltage (VRRM) and repetitive peak off-state voltage (VDRM). Characterized by a relatively high dV/dt capability, it is suitable for circuits with inductive loads. The M8 stud facilitates efficient thermal management when properly mounted to an appropriate heatsink, ensuring operational stability within specified temperature limits. Gate triggering is achieved via a standard gate-cathode connection. This thyristor is typically employed in applications such as motor speed control, soft starters, and welding equipment.