The Fuji 1MBI400JN-140 is a single-switch IGBT module rated for 400A collector current and 1400V collector-emitter voltage, built on Fuji's proven JN-series platform. Engineered for high-frequency switching with low saturation voltage (VCE(sat)) and fast, controlled turn-off characteristics, this module is optimized for efficiency and thermal stability in high-power inverter topologies. Its isolated baseplate construction simplifies heatsink integration and supports reliable operation across a broad junction temperature range, making it a dependable choice for continuous-duty industrial environments.

The 1MBI400JN-140 is well suited for medium-voltage AC motor drives, regenerative braking systems, UPS inverters, induction heating equipment, and traction power supplies. Its 1400V voltage rating provides the necessary headroom for 690VAC bus applications where transient overvoltages must be safely absorbed. Power conversion system designers also deploy this module in active front-end rectifiers and grid-tie inverter stages where switching frequency, conduction losses, and thermal management are critical design constraints.

Quick Reference: 1MBI400JN-140

Key Features of the 1MBI400JN-140:

• 1400V VCES rating with 400A DC collector current capacity for high-power inverter and converter stages
• Low VCE(sat) characteristics reduce conduction losses and heat generation under continuous load
• Integrated freewheeling diode with soft recovery profile minimizes EMI and switching stress on gate drive circuitry
• Isolated copper baseplate construction enables direct mounting to standard heatsink assemblies without additional isolation hardware
• Wide operating junction temperature range supports reliable performance in thermally demanding industrial enclosures
• Compatible with standard Fuji JN-series gate driver modules and footprint, simplifying drop-in replacement and retrofit applications

With a factory lead time of 99 weeks for new production, the 1MBI400JN-140 presents a serious procurement challenge for maintenance teams managing unplanned downtime or engineers designing systems with near-term delivery requirements. Extended lead times of this magnitude are common across high-power IGBT platforms and can halt production lines or delay project commissioning for months. Sourcing from a stocking distributor that maintains certified new OEM inventory is the most effective strategy for mitigating schedule risk on this part.

ATI Accurate Technology, based in Palmetto, Florida, stocks the 1MBI400JN-140 as new OEM product and ships same-day on orders received before 5PM EST. Whether you need a single emergency replacement or volume quantities for a production run, ATI can support your timeline. Contact our team for real-time availability, datasheet support, and competitive volume pricing. Call 239-734-7566 or email sales@igbts.us.