The ST303C series is a 620A inverter grade thyristor produced by IRF. It has a metal case ceramic insulator, an international standard TO-200AB (E-PUK) case, a full diffused design, a center amplifying gate, guaranteed high dv/dt and high di/dt, high surge current capability, low thermal resistance and high speed performance. It is suitable for inverters, choppers, induction heating and other types of force-commutated converters.
This document provides a technical overview of the International Rectifier ST303C..C series, which are inverter grade thyristors designed for applications such as inverters, choppers, and induction heating. The devices feature a metal case with a ceramic insulator in a TO-200AB (E-PUK) package and utilize an all-diffused design with a center amplifying gate.
| Package Style | TO-200AB (E-PUK) |
|---|---|
| Max. average on-state current | 620 A |
| Max. RMS on-state current | 1180 A |
| Max. peak on-state voltage | 2.16 V |
| Max. operating temperature range | -40 to 125 °C |
| Max. peak gate power | 60 W |
The maximum average on-state current is 620 A when the device is double side cooled at a heatsink temperature of 85 °C.
The maximum non-repetitive surge current is 8320 A for a duration of 8.3 ms with voltage reapplied.
The maximum operating temperature range is from -40 to 125 °C.