Toshiba – MG400J1US42 – IGBT Power Module – 600V 400A – Reclaimed Part

Toshiba — MG400J1US42 IGBT Power Module 600 V • 400 A • Single N-Channel IGBT • Built-In Freewheel Diode • Isolated Baseplate

What it is

The Toshiba MG400J1US42 is a high-current 600 V, 400 A silicon N-channel IGBT power module designed for high-power switching and motor-control applications. Its single-switch / 1U configuration incorporates one high-current IGBT switching element with a built-in reverse-connected freewheel diode in an industrial power-module package.

Designed for demanding industrial power conversion, the MG400J1US42 combines high input impedance, fast switching and substantial current-handling capability. Typical applications include industrial motor drives, UPS and inverter systems, DC choppers, welding equipment and other high-current switching circuits.

At-a-Glance

• Voltage Rating: 600 V
• Current Rating: 400 A
• Device Type: Silicon N-channel IGBT power module
• Configuration: Single-switch / 1U
• Number of Switching Elements: 1
• Integrated Diode: Built-in reverse-connected freewheel diode
• High-Speed Switching: t_f ≤ 0.35 µs
• Applications: Motor drives; UPS systems; industrial inverters; DC choppers; welders

Features

• 600 V / 400 A power class — designed for demanding high-current industrial switching applications.
• Single-switch configuration — one high-current IGBT switching element in Toshiba’s 1U module architecture.
• High input impedance — insulated-gate construction supports efficient gate-drive control.
• High-speed switching — fall time rated at 0.35 µs maximum.
• Built-in freewheel diode — integrated reverse-connected diode supports inductive-load switching.
• Industrial module construction — designed for direct heatsink mounting in high-power equipment.
• Legacy equipment support — suitable for maintaining systems originally engineered around Toshiba MG-series IGBT modules.

Technical Specifications

Applications / Replacement Considerations