The IRK.41,.56 series is IRF's high voltage industrial standard module with thick Al metal die and double stick bonding. It combines excellent thermal performance with superior mechanical ruggedness. The module has a maximum rated voltage of 1600V and a maximum surge current of 85.0KA2√s.
The IRK.41 and IRK.56 series are high‑voltage rectifier modules designed for industrial power supplies, lighting, motor control, UPS and battery chargers. They feature a thick aluminum metal die, double‑stick bonding, a copper baseplate for improved heat spreading, and UL E78996 approval.
The document provides detailed electrical ratings (voltage, current, surge capability), thermal characteristics (junction‑to‑case resistance, mounting torque), mechanical dimensions, and ordering information. Graphs illustrate current ratings, power loss, and surge performance across various conduction angles.
| Maximum voltage rating | 1600 V |
|---|---|
| Continuous on‑state current (IRK.41) | 45 A |
| Continuous on‑state current (IRK.56) | 60 A |
| Thermal resistance, junction‑to‑case | 0.23 °C/W (IRK.41) / 0.20 °C/W (IRK.56) |
| Isolation voltage (non‑repetitive) | 3500 V (1 sec) |
| Case style | TO‑240AA JEDEC |
The IRK.41 module is rated for a continuous on‑state current of 45 A.
The series is rated for a maximum reverse voltage of 1600 V.