The Infineon FZ400R17KE4 is a high-voltage, high-current IGBT module designed for the most demanding power conversion environments. Rated at 400A collector current and 1700V blocking voltage, this module is built on Infineon's IGBT4 generation chip technology, delivering an optimized balance of conduction losses and switching speed. Its robust housing, integrated thermistor for junction temperature monitoring, and low-inductance baseplate construction make it a benchmark component for engineers specifying reliable, high-efficiency power stages in multi-kilowatt systems.

The FZ400R17KE4 is widely deployed in medium-voltage industrial motor drives, regenerative drive systems, UPS infrastructure, induction heating equipment, and rail traction inverters. Its 1700V voltage class gives designers the necessary margin for three-phase grid-tied applications operating off 690V or 1000V bus architectures. Wind turbine converters, large-scale solar inverters, and mining drives are additional application areas where this module's combination of current handling and switching performance provides a strong engineering case for selection.

Quick Reference: FZ400R17KE4

Key Features of the FZ400R17KE4:

• 1700V V_CES blocking voltage with 400A rated continuous collector current for high-power density power stages
• Infineon IGBT4 chip generation optimized for low V_CEsat and reduced switching energy losses (E_on/E_off)
• Integrated NTC thermistor provides real-time module temperature feedback for thermal protection and drive system monitoring
• Low-inductance module package design minimizes stray inductance and supports fast switching frequencies with reduced overvoltage spikes
• Isolated copper baseplate construction ensures reliable thermal interface to heatsink across high-cycle fatigue conditions
• Soft punch-through (SPT) IGBT technology delivers rugged short-circuit withstand capability, rated to industry-standard 10µs

With a factory lead time of 99 weeks for new production, the FZ400R17KE4 presents a serious procurement challenge for maintenance teams facing unplanned failures or for OEMs managing production schedules. A single failed module in a critical drive system can translate directly into costly downtime. Relying on factory-direct replenishment is not a viable strategy for most operations. Having a trusted distributor with verified, new OEM stock available immediately is essential — whether you need one unit for emergency repair or a larger quantity to build a strategic buffer inventory.

ATI Accurate Technology, based in Palmetto, FL, stocks the FZ400R17KE4 as new OEM inventory ready for same-day shipping on orders placed before 5PM EST. We specialize in hard-to-find, long-lead-time, and obsolete power semiconductors — IGBTs, thyristors, diodes, and rectifier modules. Volume pricing is available. Contact our team directly at 239-734-7566 or sales@igbts.us to confirm availability, request a quote, or discuss your project requirements.