W0503RD18 Westcode - Power Module

W0503RD18 Description

W0503RD18 is a 1800 V, 503 A thyristor (SCR) made by Westcode. It is used in phase-controlled rectifiers, soft starters, battery chargers and temperature controllers for furnaces and heaters. If you are repairing older equipment, we can usually find this exact part, including date codes that are no longer in production.

Need the W0503RD18? USComponent stocks and sources power modules for repair shops, OEMs and maintenance teams worldwide. Request a quote and we'll confirm availability and lead time. Always compare against the datasheet before ordering.

Target Applications

Westcode W0503RD18 is used for variable speed motor drives, high power inverter and traction.

Key Specifications