The 22RIA series is a line of medium power thyristors from IRF. These thyristors have high reliability and exceptional stability at high temperature, and are suitable for medium power switching and phase control applications. The 22RIA series thyristors are available in TO-208AA (TO-48) packages and have standard low thermal resistance and optional metric thread versions.
The 22RIA series thyristors are medium‑power devices featuring improved glass passivation, high di/dt and dv/dt capabilities, and low thermal resistance. They are offered in standard and metric‑thread versions for voltages from 100 V up to 1600 V and are suitable for medium‑power switching, phase‑control, and high‑reliability military or aerospace applications.
The bulletin provides detailed electrical specifications, switching and blocking characteristics, thermal and mechanical data, and ordering information. Key parameters include maximum average on‑state current of 22 A, RMS on‑state current of 35 A, operating temperature range of –65 °C to 125 °C, and a junction‑to‑case thermal resistance of 0.86 K/W.
| Maximum repetitive peak voltage | up to 1600 V |
|---|---|
| Maximum average on‑state current | 22 A |
| Maximum RMS on‑state current | 35 A |
| Operating temperature range | -65 °C to 125 °C |
| Junction‑to‑case thermal resistance | 0.86 K/W |
The 22RIA series can conduct a maximum average on‑state current of 22 A at a case temperature of 85 °C.
The device is rated for operation from –65 °C to 125 °C.
Typical turn‑on time is about 0.9 µs at 25 °C.