The Fuji 1DI50MA-050 is a single diode module delivering a 50A continuous forward current rating and 500V peak repetitive reverse voltage (VRRM). Built in Fuji Electric's established power module platform, this device offers stable forward voltage characteristics, low thermal resistance, and a robust isolated baseplate construction that enables direct mounting to heatsinks. Engineers specifying rectifier stages in demanding industrial environments rely on this module for its consistent switching behavior, tight parameter tolerances, and proven long-term reliability in continuous-duty operation.

The 1DI50MA-050 is well suited for front-end rectification in AC-to-DC converters, field-excitation circuits, freewheeling diode positions in chopper and inverter topologies, and uncontrolled rectifier bridges in variable-speed motor drives. It is also used in UPS systems, welding power supplies, crane and hoist controllers, and industrial HVAC equipment where a dependable, isolated single-diode module is required to handle sustained load currents without thermal runaway. The isolated package simplifies multi-module assemblies on a common heatsink.

Quick Reference: 1DI50MA-050

Key Features of the 1DI50MA-050:

• 50A average forward current (IF(AV)) with 500V peak repetitive reverse voltage (VRRM) for mid-range industrial rectifier applications
• Isolated copper baseplate construction allows direct heatsink mounting and parallel multi-module configurations without additional insulation hardware
• Low forward voltage drop (VF) minimizes conduction losses and reduces thermal load on the heatsink assembly
• Designed for high junction temperature operation, supporting reliable continuous-duty cycling in thermally demanding enclosures
• Fuji Electric's established module packaging ensures consistent lead spacing and mounting footprint for drop-in replacement in existing designs
• Compatible with standard power module heatsink profiles used across Fuji 1DI and 2DI series assemblies, simplifying multi-module system builds

Fuji Electric's 1DI50MA-050 carries a factory lead time exceeding 99 weeks on new production orders — a reality that leaves maintenance teams and procurement professionals exposed when a drive system goes down or a build schedule demands immediate component availability. For OEMs managing end-of-life inventory and MRO buyers supporting legacy equipment in the field, waiting two years for factory production is not a viable option. Sourcing from a stocking distributor with verified new OEM inventory is the only practical path to keeping critical systems operational on schedule.

ATI Accurate Technology, based in Palmetto, Florida, stocks the 1DI50MA-050 and ships same day on orders placed before 5PM EST. We specialize in IGBTs, thyristors, diodes, and rectifier modules — including hard-to-find, long-lead-time, and obsolete parts. Volume pricing is available for OEM and MRO customers. Contact our team at 239-734-7566 or sales@igbts.us to confirm availability and get a quote today.