The IXYS VUO50-16NO3 is a three-phase bridge rectifier module configured in a full-wave bridge topology, rated for 50A average output current and a 1600V repetitive peak reverse voltage (VRRM). Built in IXYS's industry-standard NO3 package, it integrates six rectifier diodes into a single isolated baseplate module, simplifying board layout, reducing component count, and improving thermal management. The high voltage rating makes it well suited for 690VAC three-phase input systems where transient overvoltage margins are critical to system reliability and long service life.

The VUO50-16NO3 is widely deployed in industrial and commercial power conversion equipment. Typical applications include variable frequency drives (VFDs) and AC motor drive front-ends, industrial power supplies, uninterruptible power systems (UPS), welding rectifiers, battery chargers, and elevator drive systems. Its robust construction and isolated copper baseplate allow direct heatsink mounting, making it a practical choice for system integrators and OEM equipment manufacturers who require repeatable thermal performance in demanding continuous-duty environments.

Quick Reference: VUO50-16NO3

Key Features of the VUO50-16NO3:

• 1600V VRRM rating provides robust transient overvoltage margin on 480VAC and 690VAC three-phase input systems
• 50A average rectified output current supports continuous-duty industrial converter designs without derating under typical thermal conditions
• Fully integrated six-diode three-phase bridge in a single NO3 module reduces assembly complexity and PCB real estate
• Isolated copper baseplate enables direct heatsink mounting for efficient thermal dissipation and electrical isolation from chassis
• Low forward voltage drop across bridge diodes minimizes conduction losses and improves overall system efficiency
• NO3 package footprint is compatible with standard IXYS VUO-series mounting hardware, simplifying drop-in replacement in existing designs

With a factory lead time of 99 weeks for new production, the VUO50-16NO3 poses a serious procurement risk for maintenance operations and production lines dependent on IXYS rectifier modules. Extended lead times of this magnitude are increasingly common across the power semiconductor market, leaving facilities vulnerable to costly downtime when a module fails unexpectedly. ATI maintains independent stocking positions on hard-to-find and long-lead-time parts precisely for these situations, providing an immediate source of new OEM inventory when the factory pipeline offers no short-term relief.

ATI Accurate Technology is a power semiconductor distributor based in Palmetto, Florida, stocking IGBTs, thyristors, diodes, and rectifier modules — including obsolete and long-lead-time parts like the VUO50-16NO3. Orders placed before 5PM EST ship same day. Contact our team for volume pricing, cross-reference assistance, or expedite support: 239-734-7566 | sales@igbts.us.