The 410403-78AW-IR is an International Rectifier IGBT module rated at 78A, engineered for high-efficiency switching in industrial power electronics systems. IGBT modules in this class are widely deployed in variable frequency drives, inverters, and servo amplifiers where precise gate-controlled switching and thermal robustness are critical. IR's module architecture integrates the IGBT die and freewheeling diode in a single isolated package, reducing system complexity and improving thermal management at elevated current levels typical of continuous industrial duty cycles.

This module is well suited for applications including AC motor drives, UPS systems, induction heating equipment, welding inverters, and renewable energy converters such as solar inverters and wind turbine controllers. Maintenance engineers specifying replacement parts for legacy drive platforms frequently encounter the 410403-78AW-IR in established OEM designs. Its 78A current rating makes it a practical fit for medium-power three-phase drive topologies and single-phase bridge configurations found throughout manufacturing, material handling, and process control environments.

Quick Reference: 410403-78AW-IR

Key Features of the 410403-78AW-IR:

• 78A continuous collector current rating suitable for medium-power industrial drive topologies
• International Rectifier IGBT technology providing low saturation voltage (Vₙₜₛ(sat)) for reduced conduction losses
• Integrated co-pack freewheeling diode for commutation clamping without external rectifier components
• Electrically isolated baseplate for direct heatsink mounting in standard power module assemblies
• Optimized switching characteristics supporting PWM operation in variable frequency drive and inverter applications
• Robust wire-bond and die-attach construction rated for extended thermal cycling in continuous-duty environments

International Rectifier IGBT modules of this series are no longer in active production, making the 410403-78AW-IR a long-lead-time and increasingly scarce component in the open market. Procurement teams supporting legacy drive platforms often face extended downtime when sourcing discontinued IR modules through standard distribution channels. ATI Accurate Technology specializes in exactly this segment — maintaining verified stock of hard-to-find, obsolete, and long-lead-time power semiconductors to keep critical equipment operational without costly redesigns or extended procurement delays.

ATI Accurate Technology is located in Palmetto, Florida and stocks the 410403-78AW-IR for immediate fulfillment. Orders placed before 5PM EST ship same day. Whether you need a single replacement module or volume quantities for MRO or OEM programs, ATI offers competitive pricing and responsive support. Contact our team directly at 239-734-7566 or sales@igbts.us for availability confirmation, volume pricing, and technical assistance.