IRKT56/16A

Overview

The IRKT56/16A is a thyristor/diode module from the IRK.56 series, rated for 1600 V repetitive peak off-state voltage and 60 A average on-state current. It features a 135 A continuous RMS on-state current capability and supports non-repetitive surge currents of 1310 A at 50 Hz or 1370 A at 60 Hz. The device utilizes an ADD-A-PAK GEN V package with a copper baseplate for thermal management and mechanical ruggedness.

Feature Summary

• High surge current capability with robust I2t ratings for fusing protection
• Direct Bonded Copper substrate combined with a solid copper baseplate for superior thermal spread
• Mechanical design eliminates hard molding to prevent direct stress on leads
• Terminals secured against axial pull-out via a reliable click-stop feature

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 'S90' if a critical rate of rise of off-state voltage (dv/dt) of 1000 V/µs is required; standard versions are rated at 500 V/µs. Confirm that the ordering code matches the desired circuit configuration and current rating within the IRK.41/.56 family. Ensure mounting torque specifications are followed to maintain thermal interface integrity.

Selection Notes

Select based on the required voltage code (e.g., '16' for 1600 V) and current code ('56' for 60 A). Consider the dv/dt sensitivity for high-speed switching applications, opting for the S90 variant if necessary. Evaluate thermal resistance requirements against the heatsink capabilities, noting the junction-to-case thermal resistance values provided in the datasheet for DC and pulsed operations.

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 offers various voltage codes ranging from 400 V to 1600 V and is designed for industrial-level general-purpose high voltage applications.

Replacement Considerations

IRKH56/16A

FAQ

What is the difference between the standard IRKT56/16A and the IRKT56/16AS90?

The IRKT56/16AS90 variant offers an increased critical rate of rise of off-state voltage (dv/dt) rating of 1000 V/µs, whereas the standard version is rated at 500 V/µs.

How is the terminal connection secured in this module?

The electrical terminals are fixed to the module housing via a click-stop feature designed to secure them against axial pull-out.

What is the maximum holding current for the IRKT56/16A?

The maximum holding current is 200 mA, measured at an initial junction temperature equal to the maximum operating temperature.