VS-50TPS12L-M3

Scrs Overview

The VS-50TPS12L-M3 is a high voltage phase control silicon controlled rectifier (SCR) manufactured by Vishay Semiconductors. It features a maximum repetitive peak off-state voltage of 1200 V and an average on-state current rating of 50 A at a case temperature of 112 °C with a 180° conduction half sine wave. The device supports a continuous RMS on-state current of 79 A and can withstand a one-cycle non-repetitive surge current up to 630 A without voltage reapplied. It utilizes glass passivation technology for reliable operation up to a maximum junction temperature of 150 °C.

Scrs Feature Summary

• Designed specifically for medium power switching and phase control applications
• Utilizes glass passivation technology for reliable operation at elevated temperatures
• Qualified according to JEDEC JESD 47 standards

Scrs Applications

• Input rectification crowbar circuits
• Soft start systems
• AC switch motor control
• Uninterruptible Power Supply (UPS)
• Welding equipment
• Battery charge systems

Scrs Procurement Notes

Verify the specific ordering suffix against official documentation, as it dictates compliance attributes such as halogen-free status, RoHS compliance, and lead finish specifications. Confirm that the package variant matches the required thermal and mechanical mounting constraints for your application design.

Scrs Selection Notes

Evaluate the thermal resistance from junction to case to ensure adequate heat sinking for the intended load profile. Consider the dV/dt rating and gate triggering requirements to prevent false turn-on or failure to trigger under varying circuit conditions. Validate the surge current capability against potential inrush events in the target system.

Scrs Part Context

This component belongs to the VS-50TPS12 high voltage series of silicon controlled rectifiers. The series is engineered for robust performance in demanding power electronics environments, offering a balance of high voltage blocking capabilities and substantial current handling within a standard TO-247AD 3L through-hole package.

Scrs Replacement Considerations

VS-50TPS12LHM3

Scrs FAQ

What is the maximum thermal resistance from junction to case?

The maximum thermal resistance from junction to case is 0.35 °C/W.

How does the non-repetitive surge current rating vary with voltage reapplied?

The peak one-cycle non-repetitive surge current is 530 A when rated reverse voltage is applied, and increases to 630 A when no voltage is reapplied.

What are the typical gate trigger parameters at room temperature?

At a junction temperature of 25 °C, the typical DC gate trigger voltage is 1.5 V and the typical DC gate trigger current is 45 mA.