VS-VSKU71/04

SCRs - Modules Overview

The VS-VSKU71/04 is a thyristor module from the VS-VSKU71.. series manufactured by Vishay Semiconductors. It features an AAP Gen 7 (TO-240AA) package with exposed direct bonded copper substrate for excellent thermal performance. The device has a maximum average on-state current of 75 A and a maximum continuous RMS on-state current of 115 A. It supports a maximum repetitive peak reverse voltage of 400 V, with non-repetitive peak off-state voltage at 500 V. Surge capabilities include 1300 A at 50 Hz and 1360 A at 60 Hz. Operating junction temperature ranges from -40 °C to +125 °C.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for superior thermal dissipation
• Industrial standard ADD-A-PAK packaging with UL approval
• High surge current capability for robust operation
• Designed and 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 voltage code suffix matches the required circuit rating, as the series spans 400 V to 1600 V. Confirm the circuit configuration corresponds to the 'U' designation for common cathode arrangement. Ensure mounting hardware complies with the specified torque requirements for reliable thermal interface contact.

SCRs - Modules Selection Notes

Select this component when high voltage isolation and efficient heat transfer are critical. The exposed copper base simplifies heatsink integration compared to traditional insulated modules. Evaluate the thermal resistance characteristics against the expected conduction angles to ensure junction temperatures remain within safe operating limits during continuous duty cycles.

SCRs - Modules Part Context

This part belongs to the VS-VSKU71.. and VS-VSKV71.. series of thyristor modules. These devices share the same physical footprint and thermal architecture but differ in internal circuit configurations and voltage ratings. The series is engineered for general purpose high voltage applications requiring reliable switching and high surge tolerance.

SCRs - Modules Replacement Considerations

Direct substitutes within the same family include VS-VSKV71/04, which offers a common anode configuration instead of common cathode. Other voltage variants such as VS-VSKU71/08 or VS-VSKU71/12 provide higher blocking voltages while maintaining identical current and thermal specifications.