IRKT41/12A

SCRs - Modules Overview

The IRKT41/12A is a thyristor/diode module from the IRK.41 series, rated for 1200 V repetitive peak off-state voltage and 45 A average on-state current at 85°C case temperature. It utilizes an ADD-A-pak Gen V package with a thick copper baseplate for thermal management. The device features high surge capability with an ITSM of 850 A (10ms) and low internal thermal resistance of 0.23 K/W. It includes an integrated diode and offers 3500 VRMS isolation voltage.

SCRs - Modules Feature Summary

• High voltage industrial standard package with thick aluminum metal die and double stick bonding
• Thick copper baseplate providing superior mechanical ruggedness and improved thermal spread
• Electrical terminals secured against axial pull-out via a reliable click-stop feature
• Manufactured without hard mold to eliminate direct stress on leads

SCRs - Modules Applications

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

SCRs - Modules Procurement Notes

Verify the specific voltage code suffix matches the required blocking voltage, as the IRK.41 series spans 400V to 1600V. Confirm the generation designation 'A' corresponds to Generation V modules. Ensure the ordering code aligns with the desired dv/dt rating, noting that standard units have 500 V/µs while S90 variants offer 1000 V/µs. Cross-reference the complete part number against official Vishay or Infineon documentation to confirm availability and exact specifications.

SCRs - Modules Selection Notes

Select this module for general purpose high voltage applications requiring robust thermal performance and mechanical stability. The ADD-A-pak Gen V design facilitates easy mounting on heatsinks with increased tolerance for surface roughness. Consider the integrated diode configuration for bridge rectifier setups. Evaluate the 3500 VRMS isolation voltage for safety requirements in grounded heatsink configurations.

SCRs - Modules Part Context

The IRKT41/12A belongs to the IRK.41 and IRK.56 series of thyristor/diode and thyristor/thyristor modules. These Generation V Add-A-pak modules combine Direct Bonded Copper substrate technology with a solid copper baseplate. The series is designed for industrial environments, offering high surge capability and compatibility with TO-240AA footprints.

SCRs - Modules Replacement Considerations

IRKT41/14A: Higher voltage rating (1400 V). IRKT41/16A: Highest voltage rating (1600 V). IRKT41/12AS90: Same electrical ratings but enhanced dv/dt capability of 1000 V/µs.