ST303S series are Irf company's switchable thyristors, with rated current of 300A, rated voltage of 400 to 1200V, high dv/dt, high di/dt, high surge current capability, low thermal resistance, high speed, etc., suitable for inverters, choppers, induction heating and other applications.
This document provides a comprehensive overview of the International Rectifier ST303S Series Inverter Grade Thyristors (Stud Version). It highlights key features such as all diffused design, guaranteed high dv/dt and di/dt capabilities, and low thermal impedance. The thyristors are designed for applications including inverters, choppers, induction heating, and force-commutated converters.
| Max. average on-state current | 300 A |
|---|---|
| Max. RMS on-state current | 471 A |
| Max. peak non-repetitive surge current (t=10ms) | 7950 A |
| Max. junction operating temperature range | -40 to 125 °C |
| Case style | TO-209AE (TO-118) |
The maximum average on-state current is 300 A when the case temperature is 65 °C.
The maximum junction operating temperature range is from -40 to 125 °C.
The maximum mounting torque is 48.5 Nm.