The Infineon BSM400GA120DL is a high-current, 1200V-class IGBT module engineered for high-power conversion systems where switching efficiency, thermal management, and long-term reliability are non-negotiable. Rated at 400A continuous collector current, this module integrates IGBT chips with freewheeling diodes in a low-inductance package optimized for hard-switching topologies. Its robust construction suits applications operating under sustained high-cycle electrical and thermal stress, making it a trusted choice among power electronics engineers specifying components for industrial-grade equipment.

The BSM400GA120DL is widely deployed in AC motor drives, regenerative braking systems, medium-voltage UPS platforms, induction heating equipment, and grid-tied inverters. Its 1200V blocking voltage and 400A current rating make it well-suited for three-phase inverter legs in industrial variable frequency drives (VFDs) and traction converters. Energy infrastructure applications including wind turbine converters and utility-scale solar inverters also leverage this module's combination of high current capability and rugged switching characteristics to maximize uptime and minimize thermal derating under continuous load.

Quick Reference: BSM400GA120DL

Key Features of the BSM400GA120DL:

• 1200V collector-emitter breakdown voltage (VCES) with 400A rated continuous collector current for high-power converter stages
• Integrated fast-recovery freewheeling diodes optimized for low reverse recovery charge (Qrr), reducing switching losses in hard-switching inverter topologies
• Low thermal resistance junction-to-case (RthJC) enabling efficient heat extraction through direct copper baseplate mounting to liquid or forced-air cooled heatsinks
• Optimized IGBT chip technology delivering low saturation voltage (VCEsat) balanced against switching speed for efficiency across a wide load range
• Industry-standard module footprint compatible with existing gate driver and busbar designs for drop-in replacement scenarios
• Designed for high power cycling capability, supporting long service life in traction, industrial drive, and renewable energy applications

With Infineon's factory lead time for the BSM400GA120DL currently exceeding 99 weeks, procurement teams supporting active production lines or maintaining critical installed equipment face serious schedule risk sourcing direct. Obsolescence exposure is an added concern for older drive platforms still running this module. Whether you need a single unit for an emergency field repair or a scheduled production quantity, relying solely on factory allocation is not a viable strategy. ATI Accurate Technology maintains inventory of hard-to-find, long-lead-time Infineon IGBT modules specifically to close that gap for maintenance engineers and buyers who cannot afford downtime.

ATI Accurate Technology is a power semiconductor distributor located in Palmetto, Florida, specializing in IGBTs, thyristors, diodes, and rectifier modules — including obsolete and long-lead-time parts. Orders placed before 5PM EST ship same day. Contact our team for volume pricing, cross-reference support, or expedited sourcing. Call 239-734-7566 or email sales@igbts.us to check stock and get a quote today.