IRKH56/16A

Overview

The IRKH56/16A is a silicon controlled rectifier (SCR) module manufactured by Vishay General Semiconductor - Diodes Division. It features a double low-loss SCR configuration with a built-in diode in an ADD-A-PAK package. The device has a maximum repetitive peak off-state voltage of 1600 V and a maximum on-state current of 60 A. Key electrical parameters include a maximum DC gate trigger current of 150 mA, a maximum DC gate trigger voltage of 4 V, and a maximum holding current of 200 mA. The non-repetitive peak on-state current is 1520 A, with a maximum leakage current of 15 mA. The component utilizes a TO-240AA flange mount package with five terminals.

Feature Summary

• Double low-loss SCR structure integrated with a built-in diode for efficient power control
• Isolated case connection suitable for direct mounting to heatsinks
• UL approved for enhanced safety compliance in industrial applications

Applications

• Industrial motor drives requiring high voltage isolation
• AC power control systems utilizing phase angle firing
• Inverter circuits demanding robust surge current handling

Procurement Notes

Verify the specific ordering suffix and manufacturing date code against the latest Vishay datasheet to ensure compatibility with current production standards. Confirm that the lead time and availability status align with project schedules, as discrete semiconductor modules may experience supply fluctuations. Ensure the procurement channel provides authentic components with traceable documentation to maintain quality assurance protocols.

Selection Notes

Select this component when designing circuits requiring a 1600 V blocking voltage and 60 A continuous current capability in a compact flange-mount form factor. Consider the 150 mA gate trigger requirement for driver circuit design. Evaluate thermal management needs based on the TO-240AA package characteristics and the specific application's duty cycle and ambient temperature conditions.

Part Context

This part belongs to Vishay's ADD-A-PAK series of discrete semiconductor modules, designed for high-power applications. The series offers various voltage ratings, with the /16 suffix indicating the 1600 V variant. These modules are engineered for reliability in demanding environments, providing a balance of performance and ease of integration into power electronics systems.

Replacement Considerations

Consult official Vishay substitution guides for compatible alternatives within the same voltage and current class. Verify pinout compatibility and thermal resistance values before replacing the component in existing designs to ensure proper functionality and safety margins.