300A phase control thyristors ST300S series features center amplifying gate, hermetic metal case with ceramic insulator. Suitable for heavy duty operations such as severe thermal cycling in DC motor controls, controlled DC power supplies, and AC controllers.
This document provides technical specifications, electrical characteristics, and thermal data for the International Rectifier ST300S Series Phase Control Thyristors. The devices feature a hermetic metal case with ceramic insulator (TO-209AE/TO-118) and are designed for heavy-duty operations including severe thermal cycling.
| Max. average on-state current | 300 A |
|---|---|
| Max. RMS on-state current | 470 A |
| Max. peak non-repetitive surge current (50Hz) | 8000 A |
| Operating temperature range | -40 to 125 °C |
| Case style | TO-209AE (TO-118) |
The unit operates safely within a junction temperature range of -40 to 125 °C.
The maximum thermal resistance between the junction and the case is 0.10 K/W during DC operation.