The Fuji 2MBI50J-120 is a dual-configuration IGBT module rated for 50A continuous collector current and 1200V collector-emitter voltage. Built on Fuji's J-series IGBT technology, this module integrates two IGBT switches with freewheeling diodes in a compact, electrically isolated package. The J-series platform is engineered for low saturation voltage (V_CE(sat)) and fast switching characteristics, reducing conduction and switching losses in demanding power conversion stages. The 2MBI50J-120 is a proven, field-reliable component suited for medium-power inverter, converter, and chopper topologies across a broad range of industrial equipment.

The 2MBI50J-120 sees widespread use in AC motor drives, servo amplifiers, UPS systems, and industrial welding equipment where a 1200V blocking capability and 50A current handling are well matched to three-phase and single-phase bridge stages. Its dual IGBT configuration is particularly effective in half-bridge leg implementations for variable frequency drives (VFDs) and DC-DC converters. The isolated base plate supports standard heatsink mounting, making direct replacement or upgrade integration straightforward in existing system designs. Engineers specifying medium-voltage power stages will find the 2MBI50J-120 a dependable solution for both OEM builds and field maintenance replacements.

Quick Reference: 2MBI50J-120

Key Features of the 2MBI50J-120:

• 1200V V_CE blocking voltage with 50A rated continuous collector current for medium-power industrial stages
• Dual IGBT configuration with integrated freewheeling diodes, enabling direct half-bridge implementation without external anti-parallel diodes
• Low V_CE(sat) characteristic of the J-series process minimizes conduction losses at rated current
• Electrically isolated copper base plate for efficient thermal management with standard heatsink assemblies
• Optimized switching speed balances EMI performance and switching loss across common PWM frequency ranges (2–15 kHz)
• Industry-standard footprint compatible with common Fuji J-series mounting and gate drive configurations, simplifying like-for-like replacement

With a current factory lead time of 99 weeks, the 2MBI50J-120 is effectively unavailable through standard distribution channels for nearly two years. For maintenance engineers facing an unplanned outage or procurement teams managing lifecycle inventory, that lead time is not a viable option. ATI Accurate Technology maintains stock of hard-to-find and long-lead-time Fuji IGBT modules specifically to bridge this gap. Whether you need a single replacement unit for emergency repair or a buffer stock quantity for planned maintenance, ATI can fulfill your requirement without the production queue wait.

ATI Accurate Technology is located in Palmetto, Florida, and ships same-day on orders placed before 5PM EST. We specialize in IGBTs, thyristors, diodes, and rectifier modules—including obsolete and allocated parts like the 2MBI50J-120. Volume pricing is available for stocking orders. Contact our team directly at 239-734-7566 or sales@igbts.us to confirm availability, request a quote, or discuss your project requirements.