The Infineon BSM400GA120DLC is a 1200V, 400A trench-gate IGBT module built on Infineon's DLC (dual low-loss chip) platform, delivering a high-efficiency combination of low V_CE(sat) and fast switching characteristics. Housed in a robust industry-standard package with integrated inverse freewheeling diodes, this module is engineered for high-cycle-count operation in thermally demanding environments. Its optimized chip geometry minimizes conduction and switching losses simultaneously, making it a preferred solution where thermal budget and energy efficiency are critical design constraints.

The BSM400GA120DLC is widely deployed in medium-voltage industrial motor drives, regenerative AC/DC converters, UPS systems, induction heating equipment, and rail traction inverters. Its 1200V blocking voltage and 400A continuous current rating make it well-suited for three-phase inverter legs in both standard and regenerative drive topologies. Wind and solar power conversion systems, industrial welding inverters, and high-power servo drives also commonly rely on this module where rugged, thermally stable switching performance is non-negotiable.

Quick Reference: BSM400GA120DLC

Key Features of the BSM400GA120DLC:

• 1200V V_CES and 400A I_C rating supports high-power three-phase bridge and chopper configurations
• DLC (Dual Low-Loss Chip) trench-gate IGBT technology reduces both conduction losses (low V_CE(sat)) and switching losses simultaneously
• Integrated fast-recovery, soft-switching anti-parallel freewheeling diodes minimize reverse recovery stress and EMI
• Industry-standard module footprint enables direct form-fit-function replacement in existing drive platforms without PCB redesign
• Isolated copper baseplate construction provides low thermal resistance (R_th(j-c)) for efficient heat extraction in forced-air or liquid-cooled heatsink assemblies
• Built-in temperature and current sense capability (module variant dependent) supports gate driver protection and condition monitoring integration

With a factory lead time of 99 weeks from Infineon on new production orders, the BSM400GA120DLC presents a serious procurement challenge for maintenance teams managing unplanned downtime and OEMs managing production schedules. Supply chain disruptions continue to stretch lead times on high-current IGBT modules, leaving engineers facing extended equipment outages or line stoppages. ATI Accurate Technology maintains inventory of hard-to-find and long-lead-time power semiconductors specifically to bridge this gap — providing verified new OEM stock when factory channels cannot deliver on your timeline.

ATI Accurate Technology is located in Palmetto, FL and stocks IGBTs, thyristors, diodes, and rectifier modules for same-day shipping on orders placed before 5PM EST. Whether you need a single replacement module or volume quantities for MRO or OEM production, our team is ready to respond fast. Call us at 239-734-7566 or email sales@igbts.us for real-time availability, datasheets, and volume pricing on the BSM400GA120DLC.