VS-VSKT71/04

SCRs - Modules Overview

The VS-VSKT71/04 is a thyristor module from the AAP Gen 7 series by Vishay Semiconductors. It features an ADD-A-PAK package with a maximum average on-state current of 75 A and a continuous RMS current of 165 A as an AC switch. The device supports a maximum repetitive peak reverse voltage of 400 V and withstands non-repetitive surge currents up to 1300 A at 50 Hz. Operating within a junction temperature range of -40 °C to +125 °C, it utilizes direct bonded copper substrates for low thermal resistance.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for excellent thermal performance
• Industrial standard package designed for easy heatsink mounting
• High surge capability with robust fusing characteristics
• Qualified for industrial level applications

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 circuit configuration code (KT) against the datasheet ordering table to ensure correct internal topology. Confirm that the voltage rating suffix matches the required system blocking voltage. Check for UL approval file E78996 compliance if safety certification is mandatory. Ensure mounting torque specifications are strictly followed during installation to maintain thermal interface integrity.

SCRs - Modules Selection Notes

Select this component based on the 75 A average current rating and 400 V blocking voltage requirements. Evaluate the thermal resistance parameters to determine appropriate heatsinking for the expected conduction angle. Consider the gate triggering characteristics for driver compatibility. Verify that the surge current ratings align with potential fault conditions in the target application circuit.

SCRs - Modules Part Context

This module belongs to the AAP Gen 7 family, which combines advanced packaging with minimized internal interfaces. The series includes variants with different voltage codes and circuit configurations such as thyristor/diode doublers. The TO-240AA form factor ensures compatibility with standard industrial mounting practices while providing high reliability in demanding power electronics environments.

SCRs - Modules Replacement Considerations

Consult the official Vishay documentation for confirmed substitute part numbers within the same series or generation. Verify electrical parameter equivalence before implementation.