The Fuji 6RI100G-120B is a three-phase, 6-pulse rectifier diode module rated for 100A continuous output current and a 1200V repetitive peak reverse voltage. Built in Fuji's proven "G" series power module platform, it integrates six discrete diodes into a single isolated baseplate package, delivering a full-wave rectified DC bus suitable for high-power industrial converters. The 1200V blocking capability provides adequate design margin for 480V and 600V three-phase input systems, while the 100A current rating supports medium-to-large drive platforms without parallel derating strategies.

The 6RI100G-120B sees widespread deployment in AC variable frequency drives (VFDs), servo drive front-end rectifiers, regenerative power supplies, uninterruptible power supply (UPS) input stages, welding equipment, and industrial crane and hoist drive systems. Its three-phase bridge topology makes it a direct fit for any application requiring conversion of AC line power to a stable DC bus, particularly where a compact, thermally efficient module format reduces PCB real estate and simplifies heatsink mounting compared to discrete diode assemblies. It is also common in legacy industrial equipment still in active service across manufacturing, oil and gas, and material handling industries.

Quick Reference: 6RI100G-120B

Key Features of the 6RI100G-120B:

• 6-pulse full-wave three-phase rectifier bridge configuration with six integrated diodes in a single isolated module package
• 1200V repetitive peak reverse voltage (VRRM) rating providing robust margin on 480V and 600V three-phase input systems
• 100A average output current capacity suitable for medium-to-high power drive and converter front-end stages
• Isolated copper baseplate construction enabling direct heatsink mounting and simplified thermal management design
• Fuji "G" series module platform with industry-standard footprint, easing drop-in replacement of failed units in existing equipment
• Designed for low forward voltage drop operation, minimizing conduction losses and reducing thermal stress on the module at rated current

With a current factory lead time of 99 weeks for new production, the 6RI100G-120B presents a serious procurement challenge for maintenance teams facing unplanned downtime or scheduled refurbishments. Fuji power modules of this generation are increasingly difficult to source through standard distribution channels, and counterfeit risk on the open market is a genuine concern. ATI specializes in exactly this scenario — stocking hard-to-find, long-lead-time, and effectively obsolete power semiconductors as genuine new OEM product, so your production line doesn't wait nearly two years for a factory order to fulfill.

ATI Accurate Technology is located in Palmetto, Florida, and ships same-day on orders received before 5PM EST. Whether you need a single replacement unit for emergency maintenance or a larger quantity for MRO stock or a field service fleet, our team is ready to help. Contact us for volume pricing, cross-reference assistance, or availability confirmation. Call 239-734-7566 or email sales@igbts.us — we respond fast and ship faster.