VS-VSKH91/12

SCRs - Modules Overview

The VS-VSKH91/12 is a thyristor/diode doubler module from the VS-VSKH91 series by Vishay Semiconductors. It features a maximum repetitive peak reverse voltage of 1200 V and an average on-state current rating of 95 A at 85 °C case temperature. The device utilizes the ADD-A-PAK (TO-240AA) package with screw mounting. Electrical characteristics include a maximum non-repetitive surge current of 2094 A at 60 Hz, a junction-to-case thermal resistance of 0.22 °C/W per leg, and a maximum holding current of 250 mA.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for low thermal resistance
• Designed and qualified for industrial level applications
• Features UL approved file E78996 certification

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 to confirm the 1200 V rating. Confirm the circuit configuration code 'H' corresponds to the SCR/diode doubler circuit with positive control. Ensure the ordering part number matches the required electrical parameters and package type before procurement.

SCRs - Modules Selection Notes

Select this component for general purpose high voltage applications requiring a doubler circuit topology. Consider the 95 A average current rating and 1200 V blocking capability. Evaluate the thermal management requirements based on the 0.22 °C/W junction-to-case thermal resistance and the operating temperature range of -40 °C to +125 °C.

SCRs - Modules Part Context

This module belongs to the VS-VSK91 series, which includes thyristor/diode and thyristor/thyristor configurations rated at 95 A. The series offers voltage ratings ranging from 400 V to 1600 V in the standard ADD-A-PAK Gen 7 package. Other variants include VS-VSKT91, VS-VSKL91, and VS-VSKN91.

SCRs - Modules Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

SCRs - Modules FAQ

What is the circuit configuration for the VS-VSKH91/12?

The VS-VSKH91/12 is configured as an SCR/diode doubler circuit with positive control.

What is the maximum gate trigger current for this module?

The maximum gate trigger current is 150 mA at a junction temperature of 25 °C.

What is the maximum RMS insulation voltage?

The maximum RMS insulation voltage is 3000 V for 1 minute and 3600 V for 1 second at 50 Hz.