Overview
The Westinghouse T500108005AQ is a 125A, 1000V silicon controlled rectifier (SCR) thyristor housed in a TO-94 semiconductor package. This high-current power device is engineered for phase control, power switching, and rectification applications in industrial power electronics systems. Westinghouse thyristors are recognized for robust performance in demanding electrical environments.
Key Features
- 125A forward current rating for high-power applications
- 1000V blocking voltage capability
- TO-94 package for reliable thermal and electrical characteristics
- SCR topology for controlled switching and phase control
- Industrial-grade construction for demanding environments
Technical Specifications
The Westinghouse T500108005AQ delivers dependable performance across a wide range of industrial power control circuits:
Typical Applications
- Phase control in AC power circuits
- DC motor speed control and switching
- Heating element power regulation
- Industrial power conversion and rectification
- Power supply and uninterruptible power supply (UPS) systems
- Welding equipment control circuits
Compatibility & Replacements
Compatible With
- Industrial AC and DC power control circuits
- Phase control applications up to 1000V blocking
- Switching applications requiring 125A forward current
- Gate-triggered power semiconductor circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Contact your technical support team to confirm direct replacement for legacy or equivalent SCR models in your application.
Works With
- Gate drive circuits and pulse transformers
- Snubber networks and RC protection circuits
- Industrial power control system architectures
- Heat sink and thermal management systems rated for TO-94 packages








