IRKH56/04A

Overview

The IRKH56/04A is a silicon power rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It utilizes the ADD-A-PAK-3 flange mount package and features an isolated case connection. The device is configured as a common anode assembly containing two elements, designed for high-power applications. Key electrical ratings include a maximum average forward output current of 55 A and a repetitive peak reverse voltage of 400 V. The component supports a non-repetitive peak forward surge current of 1000 A and operates within a junction temperature range of -40 °C to 150 °C.

Feature Summary

• Common anode configuration with dual internal elements for efficient bridge or full-wave rectification
• Isolated flange mount construction facilitating direct heatsink attachment
• High surge current capability suitable for demanding power conversion loads

Applications

• Industrial motor drive rectification circuits
• DC power supply input stages
• Welding equipment power modules

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact voltage and current ratings, as variations exist within the series. Ensure the procurement source provides valid RoHS compliance data if required by your manufacturing standards. Cross-reference the datasheet revision date to confirm the technical specifications match your design requirements before finalizing orders.

Selection Notes

Select this component when a compact, high-current common anode rectifier is required for power electronics. The ADD-A-PAK-3 package offers robust mechanical stability and thermal performance compared to standard through-hole options. Consider the 400 V rating relative to your system's peak inverse voltage requirements and ensure adequate heatsinking is planned for the 55 A continuous current load.

Part Context

This part belongs to Vishay's IRKH series of fast recovery rectifiers housed in the ADD-A-PAK family. These components are engineered for high reliability in industrial environments. The series typically includes variants with different voltage ratings, sharing the same physical footprint and mounting characteristics to simplify board layout and thermal management strategies across product lines.

Replacement Considerations

Publicly confirmed substitute part numbers for the IRKH56/04A were not found in the provided reference material. Verify compatibility with alternative common anode rectifiers from other manufacturers by matching the 55 A current rating, 400 V blocking voltage, and ADD-A-PAK-3 package dimensions.