The Mitsubishi CM400DU-24NFJ is a 400A, 1200V dual-configuration IGBT module engineered for demanding power conversion environments. Part of Mitsubishi's NF-series platform, this module integrates high-speed IGBT chips with co-packaged freewheeling diodes, delivering low saturation voltage, controlled switching losses, and reliable thermal performance. The 24N designation confirms its 1200V blocking voltage class, making it well-suited for drive and inverter topologies operating from 480VAC to 690VAC bus architectures where ruggedness and switching efficiency are non-negotiable design requirements.

The CM400DU-24NFJ sees broad deployment across industrial motor drives, regenerative AC drives, uninterruptible power supplies, induction heating systems, and medium-voltage inverter stages in renewable energy infrastructure. OEM machine builders and end-user maintenance teams rely on this module in variable frequency drives powering pumps, compressors, fans, and conveyor systems throughout manufacturing, oil and gas, water treatment, and process industries. Its dual IGBT topology supports half-bridge circuit configurations common to three-phase inverter designs, simplifying board layout and reducing interconnect inductance in retrofit and new-build power assemblies.

Quick Reference: CM400DU-24NFJ

Key Features of the CM400DU-24NFJ:

• 1200V VCES blocking voltage with 400A continuous collector current rating for high-power half-bridge stage applications
• NF-series low-saturation IGBT chip technology minimizing conduction losses at rated current density
• Integrated co-packaged freewheeling diodes with optimized reverse recovery characteristics to reduce switching stress on gate drive circuitry
• Isolated copper base plate construction for efficient heat transfer to external heatsinks in forced-air and liquid-cooled assemblies
• Industry-standard module footprint and terminal layout compatible with existing Mitsubishi NF-series PCB and busbar designs
• Designed for PWM switching frequencies typical of industrial drive applications, balancing switching loss against output waveform quality

With a factory lead time of 33 weeks on new production, the CM400DU-24NFJ presents a genuine procurement challenge for maintenance teams facing unplanned downtime or engineering groups managing scheduled builds. Production queues at Mitsubishi for NF-series modules remain extended, and allocations can be inconsistent. For operations that cannot absorb a multi-month wait — whether managing a critical drive failure or building out a production run — sourcing from an experienced power semiconductor distributor with verified inventory is the most direct path to keeping systems online and schedules intact.

ATI Accurate Technology, based in Palmetto, Florida, stocks the CM400DU-24NFJ as new OEM product available for same-day shipment on orders placed before 5PM EST. ATI specializes in IGBTs, thyristors, and power modules including hard-to-find and long-lead-time parts. Contact our team for real-time availability, volume pricing, and expedited shipping options. Call 239-734-7566 or email sales@igbts.us — we respond fast because downtime doesn't wait.