The Fuji 6MBI300U4-170-01 is a high-voltage, high-current IGBT module featuring a 6-in-1 three-phase bridge configuration rated at 300A and 1700V. Part of Fuji Electric's U4 generation, this module integrates six IGBT chips with freewheeling diodes in a single isolated baseplate package, delivering low V_CE(sat), tight parameter matching across phases, and a robust short-circuit withstand time suited to the switching frequencies and thermal demands of modern industrial power conversion equipment.

The 6MBI300U4-170-01 is widely deployed in medium-voltage AC motor drives, regenerative inverters, UPS systems, traction converters, and induction heating equipment where reliable 1700V-class switching performance is non-negotiable. Its high blocking voltage makes it appropriate for 690VAC bus architectures, and the thermally optimized baseplate design supports direct mounting to water-cooled or forced-air heatsinks in high-duty-cycle industrial installations. OEMs and maintenance teams in steel, paper, oil and gas, and renewable energy sectors frequently specify this module as a primary or replacement component.

Quick Reference: 6MBI300U4-170-01

Key Features of the 6MBI300U4-170-01:

• 1700V collector-emitter breakdown voltage supports 690VAC three-phase drive topologies with adequate derating margin
• 300A continuous collector current rating with high peak current capability for overload and fault-ride-through scenarios
• Low V_CE(sat) characteristic minimizes conduction losses and reduces heatsink sizing requirements at full load
• Integrated freewheeling diodes with soft-recovery characteristics reduce voltage overshoot and EMI on the DC bus
• Isolated copper baseplate construction with industry-standard mounting footprint simplifies drop-in replacement in existing drive frames
• Tight chip-to-chip parameter matching across all six positions ensures balanced current sharing in the three-phase bridge without external derating

With a factory lead time of 99 weeks, procuring the 6MBI300U4-170-01 through standard distribution channels is not a viable option for unplanned maintenance events or production line downtime situations. Equipment built around Fuji U4-series modules may also be approaching end-of-life status in the manufacturer's production schedule, making independent stocking distributors the most reliable long-term source. ATI Accurate Technology maintains inventory of hard-to-find, long-lead-time, and obsolete power semiconductors precisely for these situations, ensuring that a single failed module does not become a weeks-long outage.

ATI Accurate Technology is located in Palmetto, Florida and ships same-day on orders placed before 5PM EST. Contact our team directly at 239-734-7566 or sales@igbts.us for real-time stock confirmation, datasheet support, and volume pricing on the 6MBI300U4-170-01. We serve OEMs, MRO buyers, and plant maintenance teams across North America.