IRKT105/08A

SCRs - Modules Overview

The IRKT105/08A is a thyristor/diode module from the IRK.105 series, rated for 800V repetitive peak off-state voltage and 105A average on-state current at 85°C case temperature. It features a maximum continuous RMS on-state current of 235A as an AC switch and supports non-repetitive surge currents up to 1785A at 50Hz. The device operates within a junction temperature range of -40°C to 130°C and utilizes an ADD-A-pak GEN V package with a copper baseplate.

SCRs - Modules Feature Summary

• Features a thick aluminum metal die with double stick bonding and a solid copper baseplate for superior thermal spread and mechanical ruggedness.
• Provides high isolation voltage capability with UL E78996 approval and 3500VRMS isolating voltage between circuits and the base.
• Utilizes Direct Bonded Copper (DBC) substrate technology combined with a hard mold-free construction to eliminate direct stress on leads.

SCRs - Modules Applications

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

SCRs - Modules Procurement Notes

Verify the specific suffix code against the manufacturer's ordering table to confirm the exact voltage rating and dv/dt characteristics. Confirm that the required configuration matches the circuit diagram for the IRKT series. Ensure mounting hardware specifications align with the recommended torque values and thermal interface requirements for reliable operation.

SCRs - Modules Selection Notes

Select this component based on the required blocking voltage and current handling capabilities for industrial applications. Consider the thermal resistance characteristics and the need for heatsink mounting due to the flange mount package style. Evaluate the gate triggering requirements and ensure the drive circuit can supply the necessary peak gate power and current for reliable turn-on.

SCRs - Modules Part Context

This module belongs to the IRK.105 series of ADD-A-pak GEN V power modules manufactured by Vishay General Semiconductor - Diodes Division. The series offers various voltage codes ranging from 400V to 1600V while maintaining a consistent 105A current rating structure. These modules are designed for general purpose high voltage applications requiring robust thermal performance and electrical isolation.

SCRs - Modules Replacement Considerations

IRKT105/10A

SCRs - Modules FAQ

What is the maximum repetitive peak off-state voltage for the IRKT105/08A?

The maximum repetitive peak off-state voltage (VRRM) for the IRKT105/08A is 800V.

Does the IRKT105/08A have an auxiliary cathode?

Yes, the standard IRKT105 configuration includes an auxiliary cathode, unlike the IRKH or IRKL variants which may differ in terminal configuration.

What is the typical thermal resistance from case to heatsink?

The typical thermal resistance from case to heatsink is 0.1 K/W when using a mounting compound on a flat, smooth, and greased surface.