The Powerex LD431650NA is a high-voltage, high-current IGBT module designed for use in demanding power conversion and motor drive applications where switching efficiency and thermal reliability are critical. Built to Powerex's rigorous manufacturing standards, this module delivers consistent gate-controlled switching performance in inverter, converter, and chopper topologies. Engineers specifying this device can expect the low saturation voltage and fast switching characteristics that define Powerex's industrial-grade IGBT product line, making it a proven choice for high-power system designs operating in continuous-duty environments.

The LD431650NA is well-suited for a broad range of industrial and heavy-equipment applications, including medium-voltage AC motor drives, regenerative drive systems, UPS and energy storage inverters, induction heating equipment, traction converters for rail and transit platforms, and industrial welding power supplies. Its combination of high blocking voltage and substantial current capacity makes it particularly relevant for engineers designing systems where both reliability under thermal cycling and performance at high switching frequencies are non-negotiable requirements in the final design specification.

Quick Reference: LD431650NA

Key Features of the LD431650NA:

• 1700V collector-emitter voltage (VCES) providing substantial blocking margin for medium-voltage bus applications
• 650A continuous collector current rating supporting high-power output stages without derating under normal thermal management
• Low VCE(sat) characteristics reducing conduction losses and improving overall system efficiency in inverter topologies
• Isolated baseplate construction simplifies heatsink mounting and eliminates the need for additional electrical isolation hardware in most configurations
• Optimized gate charge profile enabling stable switching behavior across the full rated operating temperature range
• Integrated freewheeling diodes with fast reverse recovery, reducing switching losses and minimizing EMI in high-frequency chopper and inverter circuits

With a published factory lead time of 99 weeks, the LD431650NA represents exactly the kind of long-lead-time, allocation-constrained component that can stall a production line or delay a critical repair. Procurement teams relying solely on direct factory orders or franchised distribution often face extended downtime waiting for replenishment. For maintenance engineers managing field failures or OEMs managing BOM continuity, access to reliable independent stock of obsolescence-sensitive Powerex modules is essential. ATI Accurate Technology maintains inventory of hard-to-find IGBT modules specifically to bridge these supply gaps with verified new OEM product.

ATI Accurate Technology is based in Palmetto, Florida, and specializes in power semiconductors including IGBTs, thyristors, diodes, and rectifier modules. The LD431650NA ships same-day on orders received before 5PM EST. Volume pricing is available for OEM and MRO buyers. Contact our team directly to confirm availability, request a quote, or discuss application requirements. Call 239-734-7566 or email sales@igbts.us — we're ready to support your procurement needs today.