Semikron – SKM400GB123D – IGBT Power Module – 1200V 400A – Reclaimed Part

Semikron — SKM400GB123D IGBT Power Module 1200 V • 400 A • Dual IGBT Half-Bridge • Integrated CAL Freewheel Diodes • Isolated Baseplate • SEMITRANS 3

What it is

The Semikron SKM400GB123D is an industrial-grade 1200 V, 400 A dual IGBT power module in the SEMITRANS 3 package. Its GB half-bridge configuration incorporates two high-power IGBT switching elements with integrated antiparallel CAL freewheel diodes, providing a compact power stage for demanding inverter and switching applications.

Designed for high-power conversion equipment, the SKM400GB123D combines high current capability, low-inductance module construction and an electrically isolated baseplate. Typical applications include UPS inverters, industrial motor drives, welding equipment, high-power switching supplies and other inverter-based power systems.

At-a-Glance

• Voltage Rating: 1200 V V_CES
• Current Rating: 400 A I_C class
• Topology: Dual IGBT half-bridge / series-connected two-element configuration
• Freewheel Diodes: Integrated antiparallel CAL diodes
• Gate Voltage: ±20 V V_GES
• Isolation: Electrically isolated module baseplate
• Package: SEMITRANS 3 • approximately 106 × 62 × 31 mm
• Applications: UPS; motor drives; inverters; welders; high-power SMPS

Features

• 1200 V / 400 A power class — designed for high-current industrial inverter and switching applications.
• Half-bridge configuration — two IGBT switching elements provide a compact inverter power stage.
• Integrated CAL freewheel diodes — soft-recovery antiparallel diodes support efficient switching of inductive loads.
• Low-inductance construction — SEMITRANS 3 layout helps reduce parasitic inductance in high-current switching circuits.
• Short-circuit capability — designed for short-circuit withstand under the gate-drive and operating conditions specified by Semikron.
• Electrically isolated baseplate — simplifies heatsink installation and electrical isolation in high-power assemblies.
• Industrial temperature capability — designed for demanding inverter, UPS and motor-drive environments.

Technical Specifications

Applications / Replacement Considerations