IRKU41/16A

Overview

The IRKU41/16A is a thyristor module from the ADD-A-pak GEN V series, rated for 1600V repetitive peak off-state voltage. It features an average on-state current of 45A at 85°C case temperature and an RMS on-state current of 70A. The device supports non-repetitive surge currents up to 890A at 60Hz and 850A at 50Hz. Operating junction temperatures range from -40°C to 125°C, with a storage temperature range of -40°C to 125°C.

Feature Summary

• Utilizes Direct Bonded Copper substrate with a solid copper baseplate for superior thermal performance and mechanical ruggedness.
• Features thick aluminum metal die and double stick bonding to enhance high voltage capabilities and surge handling.
• Includes a click-stop feature to secure electrical terminals against axial pull-out, ensuring reliable connection integrity.

Applications

• High voltage regulated power supplies
• Lighting circuits
• Temperature control circuits
• Motor speed control circuits
• Uninterruptible Power Supply (UPS) systems

Procurement Notes

Verify the specific voltage code suffix matches the required blocking voltage, as the series spans 400V to 1600V. Confirm the generation designation corresponds to the intended thermal and mechanical specifications. Check for any optional hardware requirements such as mounting compounds or specific heatsink interfaces. Ensure the gate triggering parameters align with the control circuit design. Validate that the package style meets the physical constraints of the target application.

Selection Notes

Select based on the required repetitive peak off-state voltage within the 400V to 1600V range. Consider the thermal resistance characteristics and the need for heatsink mounting torque specifications. Evaluate the di/dt rating and gate trigger requirements for the specific switching application. Assess the conduction angle derating curves to ensure adequate current handling under the expected load conditions. Verify isolation voltage requirements against the standard 3500VRMS rating.

Part Context

This component belongs to the IRKU/V41 and IRKU/V56 series of thyristor modules manufactured by Vishay General Semiconductor - Diodes Division. The series utilizes the ADD-A-pak GEN V industrial standard package, designed for general purpose high voltage applications. The modules are built on Direct Bonded Copper substrates with copper baseplates for improved thermal spreading and mounting tolerance.

Replacement Considerations

IRKU56/16A offers higher current ratings within the same voltage and package family.

FAQ

What is the maximum repetitive peak off-state voltage for this module?

The IRKU41/16A is rated for a maximum repetitive peak off-state voltage of 1600V.

How does the package design improve thermal performance?

The module uses a Direct Bonded Copper substrate combined with a solid copper baseplate, which improves thermal spread and allows for easier mounting on heatsinks with increased tolerance to surface roughness.

What is the typical thermal resistance from junction to case?

The maximum internal thermal resistance from junction to case is 0.23 K/W per module under DC operation conditions.