Overview
The Westcode W0628RA150CAA is a high-power rectifier diode from IXYS Westcode, a leading UK-based semiconductor manufacturer. This 1500V rectifier is designed for demanding industrial applications including variable frequency drives, welding equipment, HVDC systems, and industrial power conversion circuits. The W0628RA150CAA combines fast recovery characteristics with high current handling capacity, making it suitable for both switching and conduction phases in rectification and inversion circuits.
Key Features
- 1500V repetitive reverse voltage (VRRM) rating
- 628A forward surge current capacity
- Stud mounting package for direct heatsink integration
- Operating temperature range from -40°C to +190°C
- Low forward voltage drop for efficient power transfer
- RoHS compliant manufacturing
Technical Specifications
This rectifier diode is engineered for high-temperature, high-current industrial environments. Key electrical characteristics include excellent surge withstand capability and controlled reverse recovery behavior. The stud package design allows direct bolting to heatsinks, simplifying thermal management in power electronics assemblies.
Typical Applications
- AC/DC power rectification in industrial converters
- Variable frequency drive bridge circuits
- Welding power supplies and DC welding systems
- Railway traction and transportation power conversion
- HVDC transmission and distribution systems
- Excitation systems and soft starters
Compatibility & Replacements
Compatible With
- IXYS power semiconductor product ecosystem
- Industrial rectifier bridge assemblies
- High-power DC drive systems
- Medium-voltage converter platforms
- Standard heatsink mounting interfaces (stud design)
Replaces / Drop-In Replacement For
The W0628RA150CAA is a variant of the Westcode 0628 rectifier family with 1500V voltage rating. Related models in the same series include similar configurations with different voltage grades. Verify compatibility with your specific application and power circuit requirements before ordering.
Works With
- Industrial rectifier circuit designs (line-commutated and force-commutated)
- Thyristor-based DC drive systems
- Custom power semiconductor modules
- Water and air-cooled heatsink assemblies
- Thermal management and snubber component networks














