Product Description

The SEMIDUKEN 5SDD0120C0200 ZW12000A welding diode is a high-current power rectifier designed for demanding industrial rectification systems. Built with a diffusion structure and a flat ceramic tube-shell package, this press-pack diode supports dual-sided cooling for improved heat dissipation and stable performance under heavy electrical loads. With an average forward current of 12000A, repetitive peak reverse voltage of 200V to 400V, surge current of 85000A, and low thermal resistance, it is well suited for high-power conversion environments that require dependable current handling and thermal reliability. This diode is an ideal choice for industrial rectifier assemblies, welding power supplies, high-power converters, and motor control systems.

Key Features

• High average forward current rating up to 12000A

• Repetitive peak reverse voltage range 200V to 400V

• High surge current capability up to 85000A

• Diffusion structure for stable rectification performance

• Flat ceramic tube-shell package for robust mechanical construction

• Dual-sided cooling for efficient heat transfer

• Low forward voltage drop of 1.05V at specified condition

• Low thermal resistance for high-power applications

• Wide operating temperature range from -40°C to 170°C

• Suitable for demanding industrial rectifier and welding systems

Applications

• Welding equipment

• High-power converters

• Industrial rectifier systems

• Motor control systems

• Motor drives

• Heavy-duty DC power supplies

• Industrial power conversion equipment

• High-current rectification assemblies