VS-25RIA120M

Scrs Overview

The VS-25RIA120M is a medium power phase control thyristor (SCR) manufactured by Vishay Semiconductors. It features a stud base in the TO-208AA (TO-48) package with an M6 x 1 metric thread. The device supports a maximum average on-state current of 25 A at a case temperature of 85 °C and offers a repetitive peak off-state voltage of 1200 V. Key electrical characteristics include a maximum on-state voltage of 1.70 V, a gate trigger current of 60 mA at 25 °C, and a typical turn-off time of 110 μs. The junction temperature range spans from -65 °C to 125 °C.

Scrs Feature Summary

• Improved glass passivation for high reliability and exceptional stability at high temperatures
• High dI/dt and dV/dt capabilities for robust switching performance
• Low thermal resistance junction-to-case design
• Metric threaded stud base version available

Scrs Applications

• Medium power switching circuits
• Phase control applications
• Industrial level equipment
• Consumer level equipment

Scrs Procurement Notes

Verify the specific ordering code suffix against the datasheet's ordering information table to confirm mechanical thread type and critical dV/dt rating. Ensure the requested part matches the required voltage code and that any special selection options are explicitly documented. Confirm material categorization compliance if required for the target application environment.

Scrs Selection Notes

Select this component based on the 1200 V blocking voltage requirement and 25 A continuous current capacity. Evaluate thermal management needs using the specified thermal resistance values and derating curves for different conduction angles. Verify that the gate drive circuit can supply the necessary trigger current and voltage across the operating temperature range.

Scrs Part Context

This device belongs to the VS-25RIA Series of medium power phase control thyristors. The series includes various voltage ratings from 100 V to 1200 V. These components are designed for industrial and consumer applications and can be supplied to meet stringent military, aerospace, and other high-reliability requirements.

Scrs Replacement Considerations

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

Scrs FAQ

What is the maximum rate of rise of turned-on current (dI/dt) for the VS-25RIA120M?

The maximum dI/dt is 160 A/μs for devices with a rated VDRM up to 1000 V.

How does the critical rate of rise of off-state voltage (dV/dt) vary?

The standard value is 300 V/μs linear to 67% rated VDRM. A special selection option S90 provides a dV/dt of 1000 V/μs.

What is the allowable mounting torque for the stud base?

The allowable mounting torque is 30 N·m for non-lubricated threads and 20 N·m for lubricated threads, both with a tolerance of +0/-10%.