Fuji Electric Co., Ltd. ET439 IGBT Module

Fuji Electric ET439 IGBT Power Module is a compact, integrated IGBT module designed for high-speed switching in power electronics systems such as industrial inverters, motor drives, and UPS equipment. It features a heatsink-mounted cooling arrangement, an electrically isolated baseplate, and a module-style body with screw terminals, and it operates from -40°C to +150°C (junction) with a gate-drive voltage of ±20 V. This Fuji device is intended for industrial environments to control and switch high-power electrical loads, enabling efficient operation of variable frequency drives, automation systems, and energy-conversion equipment, and is commonly used by maintenance teams, OEMs, and system integrators for repair, replacement, retrofit, and reliable high-power switching performance; common replacements include Fuji 6MBI series, Mitsubishi CM series, and Infineon EconoPACK modules.