The SKM400GB128D is a robust, high-current IGBT module manufactured by SEMIKRON, one of the world's leading power semiconductor companies. Rated for 400A continuous collector current and a 1200V blocking voltage, this module is engineered for high-efficiency switching in demanding industrial and energy applications. Its compact SEMITRANS package integrates a dual (half-bridge) IGBT configuration with antiparallel freewheeling diodes, making it a ready-to-deploy solution for power designers seeking reliability and performance in a single package.

The SKM400GB128D is widely used across a broad spectrum of industrial power electronics. Primary applications include three-phase AC motor drives and variable frequency drives (VFDs), industrial UPS systems, solar inverters and renewable energy converters, induction heating equipment, traction drives, and high-frequency DC-DC converters. Its combination of high current capability and 1200V voltage rating makes it especially well-suited for medium-voltage drive platforms and grid-tied inverter stages where thermal performance and switching efficiency are critical.

Quick Reference: SKM400GB128D

Key Features:

• 400A continuous collector current rating for high-power industrial applications
• 1200V collector-emitter blocking voltage for reliable operation in medium-voltage systems
• Dual (half-bridge) IGBT topology with integrated antiparallel freewheeling diodes
• Low VCEsat and optimized switching characteristics for reduced conduction and switching losses
• Industry-standard SEMITRANS package with isolated baseplate for simplified heatsink mounting
• Designed for long operational life in harsh industrial environments with wide temperature tolerance

Sourcing high-current IGBT modules like the SKM400GB128D can be a challenge, particularly when original equipment manufacturers require exact replacements for legacy drives or when supply chain disruptions extend lead times. ATI Accurate Technology maintains inventory of new and hard-to-find SEMIKRON components to help keep your production lines running and your repair projects moving forward without costly delays. Whether you need a single module for a critical repair or a larger quantity for a production run, ATI can fulfill your order quickly and reliably.

ATI Accurate Technology is your trusted source for the SKM400GB128D and hundreds of other SEMIKRON IGBT modules. Located in Palmetto, Florida, we specialize in power semiconductors including IGBTs, thyristors, diodes, and rectifier modules — including obsolete and long-lead-time parts. Orders placed before 5PM EST ship the same day. Contact our team today at 239-734-7566 or sales@igbts.us for pricing, availability, and expert support.