VS-T70RIA80

SCRs - Modules Overview

The VS-T70RIA80 is a single-phase Silicon Controlled Rectifier (SCR) module manufactured by Vishay General Semiconductor - Diodes Division. It features an 800 V maximum repetitive off-state voltage and supports a continuous on-state current of 90 A (average) with a root-mean-square rating of 141 A. The device utilizes a D-55 T module package designed for base mounting, ensuring robust thermal management in high-power applications. Key electrical characteristics include a maximum gate trigger voltage of 2.5 V and a maximum gate trigger current of 120 mA. Non-repetitive surge currents are rated at 1780 A for 50 Hz and 1870 A for 60 Hz frequencies. The component operates within a junction temperature range of -40°C to 125°C.

SCRs - Modules Feature Summary

• High current handling capability with 141 A RMS and 90 A average on-state current ratings
• Robust surge tolerance supporting up to 1870 A non-repetitive peak current
• Integrated thermal design within the D-55 T module for efficient heat dissipation
• Low gate drive requirements with maximum 2.5 V trigger voltage

SCRs - Modules Applications

• Industrial motor control systems requiring high current switching
• AC power regulation and phase control circuits
• Welding equipment power stages
• High-power heating element controllers

SCRs - Modules Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with your system's thermal and electrical requirements. Confirm that the D-55 T mounting interface matches your heatsink or chassis specifications. Check for any recent Product Change Notifications (PCNs) regarding material composition or manufacturing site changes. Ensure proper isolation voltage ratings meet your safety standards. Validate gate trigger parameters against your driving circuit capabilities.

SCRs - Modules Selection Notes

Select this component when designing circuits requiring high continuous current capacity in a compact modular form factor. The D-55 T package offers superior thermal performance compared to smaller discrete packages. Consider the 800 V blocking voltage for medium-voltage AC applications. Evaluate the thermal resistance characteristics to determine appropriate heatsinking solutions. Compare the 141 A RMS rating against your load requirements to ensure adequate margin for transient conditions.

SCRs - Modules Part Context

This SCR module belongs to Vishay's T-Module series, which provides integrated thermal management solutions for power electronics. The D-55 T package is specifically engineered for high-current applications where reliable operation under demanding thermal conditions is critical. This series is commonly used in industrial power conversion systems where space constraints and thermal efficiency are primary design considerations.

SCRs - Modules Replacement Considerations

Consult Vishay's official cross-reference documentation for verified equivalent part numbers. Ensure any substitute maintains identical D-55 T mechanical dimensions and pinout configuration. Verify that replacement devices match the 800 V voltage rating and 141 A RMS current capacity. Confirm compatible gate trigger characteristics to avoid driving circuit modifications.