VS-T90RIA40

SCRs - Modules Overview

The VS-T90RIA40 is a single-phase Silicon Controlled Rectifier (SCR) module manufactured by Vishay General Semiconductor - Diodes Division. It features an 800 V maximum blocking voltage and supports a continuous average on-state current of 90 A with a root-mean-square current 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 non-repetitive peak surge current capacity of 1780 A at 50 Hz or 1870 A at 60 Hz. The junction temperature range spans from -40°C to 125°C.

SCRs - Modules Feature Summary

• High power handling capability with 90 A average on-state current
• Robust surge tolerance supporting up to 1870 A peak current
• Dedicated D-55 T module housing for efficient heat dissipation
• Low gate drive requirements for simplified control circuitry

SCRs - Modules Applications

• Industrial motor drives and variable frequency drives
• High-power AC power control systems
• Resistive load switching applications
• Welding equipment power stages

SCRs - Modules Procurement Notes

Verify the specific suffix against the official datasheet to confirm exact electrical tolerances and pinout configurations. Ensure the procurement channel provides original manufacturer documentation to validate authenticity. Confirm that the D-55 T module mounting interface matches the intended heatsink design for proper thermal contact. Check for RoHS compliance status if required by the final assembly specifications.

SCRs - Modules Selection Notes

Select this component when an 800 V blocking voltage and 90 A continuous current are required in a compact module form factor. The D-55 T package facilitates direct base mounting, simplifying thermal management compared to discrete components. Evaluate the gate trigger parameters to ensure compatibility with the available control signal levels. Consider the surge current ratings to guarantee reliability under transient load conditions typical in industrial environments.

SCRs - Modules Part Context

This SCR module belongs to the T-Series lineup from Vishay, which focuses on high-current thyristor solutions for demanding power electronics. The D-55 T package is a standard industry format designed for reliable operation in high-temperature environments. This series is engineered to provide consistent performance in applications requiring precise phase control and high durability under heavy electrical loads.

SCRs - Modules Replacement Considerations

Cross-reference with other Vishay T-Series modules such as VS-T90RIA80 for higher voltage requirements. Verify mechanical footprint compatibility before substituting with third-party equivalents. Ensure that alternative devices meet or exceed the 141 A RMS current rating and 800 V blocking voltage specifications.