VS-25TTS12-M3

Scrs Overview

The Vishay VS-25TTS12-M3 is a high voltage phase control silicon controlled rectifier (SCR) designed for medium power switching applications. It features glass passivation technology and operates within a junction temperature range of -40 °C to +125 °C. The device provides a maximum peak reverse voltage of 1200 V and an average on-state current of 16 A at a case temperature of 93 °C with a 180° conduction half sine wave. It has a maximum RMS on-state current of 25 A and supports a non-repetitive surge current of up to 320 A under specific conditions.

Scrs Feature Summary

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

Scrs Applications

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

Scrs Procurement Notes

Verify the exact part number against official Vishay documentation before procurement, as suffixes indicate specific environmental or material compliance attributes. Confirm that the TO-220AB 3L package matches your board layout requirements. Ensure thermal management solutions align with the specified junction-to-case thermal resistance values provided in the datasheet to maintain safe operating temperatures during continuous use.

Scrs Selection Notes

Select this component when a robust SCR capable of handling high voltages and moderate currents is required for phase control. Consider the 1200 V rating for high-voltage AC applications. Evaluate the gate triggering characteristics, particularly the DC gate current requirements across different temperature ranges, to ensure compatibility with your drive circuitry. Verify that the package style fits your assembly constraints.

Scrs Part Context

This device belongs to the VS-25TTS series of high voltage thyristors from Vishay Semiconductors. The series includes variants with different voltage ratings, such as the VS-25TTS08-M3 for 800 V applications. These components are engineered for durability in demanding industrial environments, offering consistent performance in power conversion and control tasks where reliability is critical.

Scrs Replacement Considerations

Direct replacements must match the 1200 V rating, 16 A average current, and TO-220AB 3L package. Verify electrical parameters like holding current and gate trigger voltage to ensure functional equivalence in existing designs.

Scrs FAQ

What is the maximum non-repetitive surge current for the VS-25TTS12-M3?

The maximum non-repetitive surge current is 320 A for a 10 ms sine pulse with no voltage reapplied.

How does the gate trigger current vary with temperature?

The maximum required DC gate current to trigger decreases as temperature increases: it is 60 mA at -10 °C, 45 mA at 25 °C, and 20 mA at 125 °C.

What is the typical turn-on time for this SCR?

The typical turn-on time is 0.9 µs at a junction temperature of 25 °C.