The Fuji Electric 7MBR25SA120B is a 25A, 1200V IGBT power semiconductor module engineered for high-efficiency switching in demanding industrial environments. As part of Fuji's 7MBR SA-series lineup, this module integrates insulated gate bipolar transistor technology with a compact, thermally optimized package. Its robust voltage and current ratings make it well-suited for applications requiring reliable hard-switching performance, low saturation voltage, and stable operation across a wide temperature range — characteristics that have made the SA-series a trusted choice in industrial power conversion for many years.

The 7MBR25SA120B sees widespread use in AC motor drives, servo amplifiers, uninterruptible power supplies (UPS), induction heating systems, and general-purpose inverters. Engineers specifying or maintaining variable frequency drives (VFDs), elevator controllers, CNC spindle drives, and industrial HVAC systems frequently encounter this module in legacy equipment. Its 1200V blocking capability and 25A continuous current rating align with the standard requirements of three-phase inverter bridges in the 5–15kW power range, making it a common building block in both OEM designs and field-replaceable assemblies.

Quick Reference: 7MBR25SA120B

Key Features of the 7MBR25SA120B:

• 1200V collector-emitter voltage (VCES) with 25A continuous collector current (IC) rating for mid-power inverter stages
• Low VCE(sat) characteristics reducing conduction losses and thermal stress during continuous switching operation
• Integrated freewheeling diodes optimized for fast reverse recovery, minimizing switching losses in hard-switching topologies
• Isolated baseplate construction enabling direct heatsink mounting and simplified thermal management in compact drive enclosures
• High short-circuit withstand capability supporting reliable overcurrent protection coordination in motor drive applications
• Compatible with standard gate drive voltages (+15V / -15V) for straightforward integration into existing IGBT gate driver circuits

The 7MBR25SA120B was officially discontinued by Fuji Electric, and with a factory lead time of 99 weeks for any new production run, waiting on the manufacturer is not a viable option for most maintenance or production needs. For facilities running legacy drives or OEM equipment built around this module, sourcing from a stocking distributor is the only practical path to minimizing downtime. Procurement teams managing MRO inventories should consider securing buffer stock now, as open-market availability of obsolete IGBT modules tightens over time and pricing becomes increasingly volatile.

ATI Accurate Technology, based in Palmetto, Florida, specializes in obsolete, long-lead-time, and hard-to-find power semiconductors including IGBTs, thyristors, diodes, and rectifier modules. We stock the 7MBR25SA120B and ship same-day on orders placed before 5PM EST. Volume pricing is available. Contact our team at 239-734-7566 or sales@igbts.us for availability, quantity pricing, or technical questions.