The Fuji 1DI300G-100 is a single-configuration power diode module delivering a 300A continuous forward current rating and a 1000V repetitive peak reverse voltage (VRRM). Built to Fuji Electric's established power module standards, this device incorporates a low forward voltage drop diode die in an isolated baseplate package, enabling straightforward thermal management when mounted to a heatsink. The module's construction supports reliable rectification performance across a wide operating temperature range, making it well-suited for demanding industrial environments where thermal cycling and load variation are routine operating conditions.

The 1DI300G-100 is widely deployed in industrial AC-to-DC rectifier stages, regenerative drive front-ends, UPS systems, welding power supplies, and DC bus charging circuits. Its 300A current capacity suits medium-to-large motor drive platforms where front-end rectification demands high thermal reliability and consistent blocking performance. The module is also found in induction heating equipment, electrochemical processing rectifiers, and crane or hoist drive systems — anywhere that a robust, discrete rectifier element is required to handle sustained high-current loads with minimal maintenance intervention.

Quick Reference: 1DI300G-100

Key Features of the 1DI300G-100:

• 300A continuous forward current (IF(AV)) rating supports high-power rectification without derating in properly heatsinked assemblies
• 1000V repetitive peak reverse voltage (VRRM) provides adequate blocking margin for 480V and 690V three-phase input rectifier stages
• Single-diode configuration simplifies circuit layout and allows flexible placement within custom bridge or freewheeling rectifier designs
• Isolated copper baseplate construction enables direct mounting to system heatsinks without additional electrical isolation hardware
• Low forward voltage drop (VF) reduces conduction losses and minimizes thermal load on the module at rated current
• Compatible with standard Fuji power module mounting footprints, facilitating drop-in replacement in existing drive and rectifier platforms

With a current factory lead time of 99 weeks for new production, the 1DI300G-100 represents exactly the type of long-lead-time component that can bring a production line or service operation to a standstill. Engineers supporting legacy drive systems or procurement teams managing MRO inventories cannot afford to rely solely on the factory pipeline for a part with this lead time. ATI Accurate Technology maintains stock of hard-to-find and long-lead-time Fuji power modules precisely to bridge this gap, providing immediate availability when the factory schedule is not a viable option.

ATI Accurate Technology is a power semiconductor distributor based in Palmetto, Florida, specializing in IGBTs, diodes, thyristors, and rectifier modules from leading manufacturers including Fuji. We stock the 1DI300G-100 as new OEM product and ship same-day on orders placed before 5PM EST. Volume pricing is available for MRO stocking orders and OEM builds. Contact our team at 239-734-7566 or sales@igbts.us to confirm availability and receive a quote.