The CM400DY1-12E is a Mitsubishi Electric IGBT module configured in a dual (chopper/2-in-1) topology, rated for 400A continuous collector current and 1200V collector-emitter voltage. Designed for high-frequency switching in industrial power conversion equipment, this module integrates fast-recovery freewheeling diodes and offers low V_CE(sat) characteristics that reduce conduction losses and thermal stress on the heatsink assembly. Its industry-standard footprint and gate drive compatibility make it a reliable choice for original equipment builds and field replacement alike.

The CM400DY1-12E sees widespread deployment across AC and DC motor drives, regenerative braking systems, UPS inverters, induction heating equipment, and industrial welding power supplies. Its 1200V blocking capability and 400A current rating make it well-suited for medium-voltage drive topologies in steel mills, paper mills, mining equipment, and HVAC systems where sustained high-current operation and thermal cycling endurance are non-negotiable. OEM machine builders and MRO procurement teams rely on this module to maintain uptime in mission-critical production environments.

Quick Reference: CM400DY1-12E

Key Features of the CM400DY1-12E:

• 1200V collector-emitter voltage (V_CEO) with 400A rated collector current for high-power industrial conversion stages
• Dual (2-in-1 chopper) circuit configuration with integrated fast-recovery antiparallel freewheeling diodes
• Low V_CE(sat) minimizes conduction losses and reduces heatsink thermal requirements in continuous-duty cycles
• Isolated copper base plate and Al₂O₃ ceramic substrate for effective thermal dissipation and high dielectric isolation voltage
• Industry-standard module footprint ensures drop-in compatibility with existing Mitsubishi CM-series drive platforms and third-party inverter designs
• Designed for switching frequencies and gate drive parameters typical of industrial inverter and chopper stages, with defined gate charge and turn-off energy (E_off) specifications

With a 44-week factory lead time on new production, the CM400DY1-12E is precisely the type of component that can stall a drive repair or halt a production line for months. Whether you are sourcing a single module for emergency field replacement or building safety stock for a fleet of drives, relying on scheduled factory deliveries is not a viable strategy. ATI Accurate Technology maintains inventory of hard-to-find, long-lead-time, and obsolete power semiconductors specifically to close that gap — keeping your equipment running without the wait.

ATI Accurate Technology is located in Palmetto, Florida and ships same-day on orders placed before 5PM EST. The CM400DY1-12E is in stock new OEM and ready to ship today. For volume pricing, cross-reference inquiries, or urgent replacement needs, contact our team directly at 239-734-7566 or sales@igbts.us. We support maintenance engineers and procurement professionals with competitive pricing and responsive service on IGBTs, thyristors, diodes, and rectifier modules.