IRKT56/10A

Overview

The IRKT56/10A is a thyristor/diode module from the IRK.56 series, housed in an ADD-A-pak GEN V package compatible with TO-240AA standards. It features a 1000V repetitive peak off-state voltage rating and supports a maximum average on-state current of 60A at 85°C case temperature. The device provides a continuous RMS on-state current of 135A when configured as an AC switch. Non-repetitive surge current capabilities reach 1310A at 50Hz and 1370A at 60Hz. The junction operating temperature range spans from -40°C to +125°C.

Feature Summary

• Utilizes Direct Bonded Copper substrate for superior thermal performance combined with a solid copper baseplate for mechanical ruggedness.
• Features thick aluminum metal die and double stick bonding to enhance reliability under high power conditions.
• Includes a click-stop feature to secure electrical terminals against axial pull-out forces.
• Manufactured without hard mold to eliminate direct stress on leads during operation.

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 code to confirm generation version and dv/dt ratings, as these alter technical specifications. Confirm lead-free status if required by project constraints. Ensure mounting torque adheres to specified limits to maintain thermal interface integrity. Check for UL recognition requirements relevant to the final equipment assembly.

Selection Notes

Select based on required voltage blocking levels available within the 400V to 1600V range. Consider the RMS current rating when designing for AC switching applications versus standard rectification. Evaluate thermal resistance characteristics relative to the expected heatsink configuration. Verify gate triggering parameters match the drive circuit capabilities.

Part Context

This component belongs to the IRK.41 and IRK.56 series of thyristor/diode modules manufactured by Vishay General Semiconductor - Diodes Division (formerly International Rectifier). The series utilizes the Generation V Add-A-pak technology, designed for industrial-level applications requiring robust mechanical construction and efficient heat dissipation through isolated flange mounting.

Replacement Considerations

IRKT41/10A offers identical packaging but lower current ratings. IRKH56/10A shares the same electrical profile but differs in internal circuit configuration. IRKN27/10A provides similar voltage ratings with different current handling capabilities. Verify pinout compatibility before substituting any alternative part numbers.

FAQ

What is the isolation voltage rating of the module?

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

How does the package design affect mounting tolerance?

The solid copper baseplate allows for easier mounting on heatsinks with increased tolerance of surface roughness.

What is the maximum non-repetitive on-state current at 60Hz?

The ITSM rating is 1370A for a duration of 8.3ms at 60Hz.