The Fuji 2DI300A-050 is a dual-configuration diode module rated for 300A continuous forward current and a 500V repetitive peak reverse voltage (VRRM). Built to Fuji Electric's industrial-grade standards, this module delivers reliable rectification performance in a thermally optimized package suited for integration into heatsink assemblies. The dual diode topology supports both full-wave rectification bridge stages and freewheeling diode applications, making it a versatile building block in medium-to-high power conversion equipment where robust, low-loss rectification is critical.

The 2DI300A-050 sees broad deployment across industrial motor drives, AC-DC front-end rectifier stages, UPS systems, welding inverters, and crane or hoist drive platforms. It is commonly specified in legacy variable frequency drives (VFDs) and regenerative braking circuits where the 500V blocking voltage and 300A current capacity align with 380–480VAC three-phase input topologies. Its rugged construction also makes it a preferred choice in induction heating power supplies and traction auxiliary converters operating under continuous heavy-load conditions.

Quick Reference: 2DI300A-050

Key Features of the 2DI300A-050:

• 300A average forward current (IFAV) rating supports high-power rectification without derating in properly heatsinked assemblies
• 500V repetitive peak reverse voltage (VRRM) suitable for 480VAC three-phase input applications with standard safety margin
• Dual diode configuration in a single isolated base module reduces PCB footprint and simplifies thermal management
• Isolated copper baseplate construction enables direct mounting to standard heatsinks with industry-compatible bolt patterns
• Low forward voltage drop (VF) minimizes conduction losses and heat generation at full rated current
• Optimized for both rectifier bridge duty and freewheeling/bypass diode roles within inverter and chopper circuits

The 2DI300A-050 has been discontinued by Fuji Electric, with new factory production carrying a 99-week lead time — effectively placing it out of reach for emergency repairs or unplanned maintenance windows. For OEMs supporting legacy equipment and MRO teams maintaining installed drive systems, sourcing from authorized distributors with physical inventory is the only practical path to minimizing downtime. ATI Accurate Technology maintains stock of hard-to-find and obsolete Fuji power modules, providing a reliable supply chain solution when the factory cannot deliver.

ATI Accurate Technology is located in Palmetto, Florida, and specializes in IGBTs, diodes, thyristors, and rectifier modules including obsolete and long-lead-time parts. Orders placed before 5PM EST ship same day. Contact our team for volume pricing, cross-reference support, or urgent replacement needs: call 239-734-7566 or email sales@igbts.us.