VS-VSKT26/08

SCRs - Modules Overview

VS-VSKT26/08 is a thyristor/diode module rated for 800 V repetitive peak reverse voltage. It provides an average on-state current of 27 A and a continuous RMS current of 60 A as an AC switch. The device withstands non-repetitive surge currents of 400 A at 50 Hz and 420 A at 60 Hz. It operates within a junction temperature range of -40 °C to +125 °C.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for low thermal resistance
• Complies with UL approved file E78996
• 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

SCRs - Modules Procurement Notes

Verify the specific circuit configuration code matches the required application topology before ordering. Confirm that the mounting torque adheres to the specified 4 Nm limit for busbar connections. Ensure heatsink interface surfaces are flat, smooth, and greased to maintain the typical thermal resistance value of 0.1 °C/W.

SCRs - Modules Selection Notes

Select this component when an 800 V blocking capability is required alongside a 27 A average current rating. Consider the AAP Gen 7 package dimensions for mechanical integration. Evaluate the thermal impedance characteristics against the expected conduction angles and ambient temperatures to ensure the junction temperature remains within the maximum operating limit.

SCRs - Modules Part Context

This part belongs to the VS-VSKT26 series, which includes various voltage ratings from 400 V to 1600 V. All variants share the same 27 A current rating and utilize the ADD-A-PAK (TO-240AA) package style. The series is designed for general purpose high voltage applications requiring robust surge capabilities.

SCRs - Modules Replacement Considerations

Check datasheet document number 94629 for potential obsolescence notices or alternative part numbers within the Vishay portfolio.