VS-VSKN91/04

SCRs - Modules Overview

The Vishay VS-VSKN91/04 is a thyristor/diode module rated for 400 V repetitive peak reverse voltage and 95 A average on-state current. It utilizes the AAP Gen 7 (TO-240AA) package with an exposed direct bonded copper substrate to achieve low thermal resistance of 0.22 °C/W per leg. The device supports high surge currents up to 2094 A at 60 Hz and operates within a junction temperature range of -40 °C to +125 °C.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for excellent thermal performance
• Features industrial standard ADD-A-PAK package design
• Includes UL approval file E78996 for safety compliance

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 'N' corresponds to the SCR/diode common anodes topology required for your design. Confirm that the 400 V rating aligns with your system's maximum repetitive peak reverse voltage requirements. Ensure mounting hardware specifications match the M5 x 0.8 screw dimensions and torque values defined in the mechanical outline.

SCRs - Modules Selection Notes

Select this component when a combined thyristor and diode solution in a single package is needed for common anode configurations. The TO-240AA form factor facilitates easy heatsink mounting. Consider the 0.22 °C/W junction-to-case thermal resistance for heat dissipation calculations. Verify gate triggering parameters against your drive circuit capabilities.

SCRs - Modules Part Context

This part belongs to the VS-VSKN91 series, which includes variants with different voltage ratings ranging from 400 V to 1600 V. All modules in this series share the same 95 A current rating and physical package dimensions. The 'N' suffix specifically denotes the SCR/diode common anodes circuit configuration within the broader AAP Gen 7 product family.

SCRs - Modules Replacement Considerations

Direct replacements must maintain the 400 V rating, 95 A current capacity, and SCR/diode common anode configuration. Modules from the VS-VSKT91, VS-VSKH91, or VS-VSKL91 series are electrically compatible but feature different internal circuit topologies.