IRKT41/16A

Overview

The IRKT41/16A is a thyristor/diode module from the IRK.41 series, rated for 1600 V repetitive peak off-state voltage and 45 A average on-state current at 85°C case temperature. It features a TO-240AA compatible ADD-A-pak Gen V package with a thick copper baseplate for mechanical ruggedness and thermal spreading. The device provides 3500 VRMS isolation voltage and supports junction temperatures from -40°C to 125°C.

Feature Summary

• Utilizes Direct Bonded Copper substrate combined with a solid copper baseplate for superior thermal performance and mechanical stability.
• Features a click-stop terminal fixation system designed to secure electrical terminals against axial pull-out forces.
• Manufactured without hard molding to eliminate direct stress on leads while maintaining industrial standard compatibility.

Applications

• High voltage regulated power supplies
• Lighting circuits
• Temperature control circuits
• Motor speed control circuits
• UPS systems and battery chargers

Procurement Notes

Verify the specific suffix configuration when ordering, as options such as S90 modify the critical rate of rise of off-state voltage characteristics. Confirm that the procurement specification aligns with the required dv/dt rating and circuit topology before finalizing the purchase order.

Selection Notes

Select this component based on the 1600 V blocking capability and 45 A continuous current requirement. Ensure the application environment allows for proper heatsinking to maintain the case temperature within the specified operational limits for reliable long-term performance.

Part Context

This module belongs to the IRK.41 and IRK.56 series of thyristor/diode and thyristor/thyristor configurations. These Generation V modules are designed for general-purpose high-voltage applications requiring robust isolation and high surge current handling capabilities in industrial environments.

Replacement Considerations

IRKT56/16A offers higher current ratings within the same package family.

FAQ

What is the maximum isolating voltage provided by this module?

The module provides an isolating voltage of 3500 VRMS between the circuit and the base.

How are the electrical terminals secured within the housing?

Terminals are fixed via a click-stop feature tested for reliability against axial pull-out forces.

What is the purpose of the thick copper baseplate?

It improves thermal spread and increases tolerance to surface roughness during heatsink mounting.