IRKT57/10A

Overview

The IRKT57/10A is a thyristor/diode module from the IRK.41/.56 series, manufactured by Vishay General Semiconductor - Diodes Division. It utilizes the ADD-A-pak GEN V package with a copper baseplate and Direct Bonded Copper substrate for thermal management. The device features a maximum repetitive peak off-state voltage of 1000V and an average on-state current rating of 60A at 85°C case temperature. It supports high surge currents up to 1310A (50Hz) and includes a click-stop terminal fixation system.

Feature Summary

• High voltage capability up to 1600V with industrial standard packaging
• Robust mechanical design featuring thick aluminum die, double stick bonding, and solid copper baseplate
• Direct Bonded Copper substrate combined with copper baseplate for superior thermal spread and mounting tolerance
• Terminal fixation secured against axial pull-out via 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 configuration when ordering. The 'T' indicates the Thyristor/Diode circuit configuration, while '57' denotes the 60A current code without auxiliary cathode. The '/10A' specifies the 1000V voltage rating and Generation V package. Confirm that the required dv/dt rating matches the standard 500V/µs unless the S90 suffix variant is explicitly needed for higher critical rate of rise of off-state voltage requirements.

Selection Notes

Select this component for general purpose high voltage applications requiring robust thermal performance and mechanical ruggedness. The ADD-A-pak GEN V package allows easier mounting on heatsinks with increased tolerance to surface roughness. Ensure the application operates within the specified junction temperature range of -40°C to 125°C and consider the thermal resistance characteristics for proper heatsink sizing based on the expected conduction angle and load conditions.

Part Context

This module belongs to the IRK.41/.56 series, which offers various current codes (41 for 45A, 56 for 60A) and voltage ratings ranging from 400V to 1600V. The IRKT57/10A specifically combines the 60A current rating with the 1000V blocking voltage in the Thyristor/Diode configuration. The series is designed for industrial level qualification and features UL approval.

Replacement Considerations

IRKT41/10A (45A version)

FAQ

What is the difference between IRKT56 and IRKT57?

The IRKT57 type is available without an auxiliary cathode, whereas the IRKT56 typically includes one. Both share the same 60A current rating and package style.

What is the maximum critical rate of rise of off-state voltage (dv/dt)?

The standard IRKT57/10A has a maximum dv/dt of 500V/µs. A variant with S90 suffix is available for 1000V/µs requirements.

How are the electrical terminals secured?

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