The Infineon FS200R12KT4R_B11 is a 200A, 1200V EconoDUAL 3 IGBT module utilizing Infineon's IGBT4 Trench/Fieldstop chip technology paired with fast CAL4 freewheeling diodes. The B11 variant is optimized for improved thermal cycling capability, making it a reliable choice for high-cycle, hard-switching topologies. With low V_CE(sat) and reduced tail current, this module achieves an efficient balance between conduction and switching losses — a critical requirement in variable-speed drive and renewable energy converter designs operating at switching frequencies in the 2–8 kHz range.

The FS200R12KT4R_B11 is widely deployed in industrial AC motor drives, servo amplifiers, solar inverters, UPS systems, and induction heating equipment. Its EconoDUAL 3 footprint is a standard platform across multiple inverter generations, simplifying board-level replacement and system upgrades. The module's enhanced thermal interface and optimized baseplate design support direct mounting to liquid-cooled or forced-air heatsinks, enabling compact, high-power-density installations in both OEM production and field maintenance scenarios.

Quick Reference: FS200R12KT4R_B11

Key Features of the FS200R12KT4R_B11:

• IGBT4 Trench/Fieldstop technology delivering low V_CE(sat) for reduced conduction losses in hard-switching applications
• Integrated CAL4 (Controlled Axial Lifetime) antiparallel freewheeling diodes with soft recovery characteristics
• B11 process variant with enhanced power cycling capability — extended lifetime under thermal stress conditions
• EconoDUAL 3 industry-standard package with optimized DCB substrate for low thermal resistance (R_th(j-c))
• 6 µs short-circuit withstand time rating supporting robust gate drive protection schemes
• Isolated copper baseplate with standard M6 mounting holes for direct heatsink integration in space-constrained enclosures

With a current factory lead time exceeding 99 weeks, procurement teams sourcing the FS200R12KT4R_B11 for production builds, scheduled maintenance, or emergency repairs face serious exposure. Infineon's EconoDUAL 3 platform remains deeply embedded in fielded equipment across multiple industrial generations, meaning demand for this module consistently outpaces available factory allocation. Relying solely on authorized distribution channels at standard lead times is not a viable strategy when a production line or critical asset is down. Having a trusted independent stocking distributor in your supply chain is essential for bridging that gap without compromising on part authenticity or quality.

ATI Accurate Technology is a power semiconductor specialist stocking IGBTs, thyristors, diodes, and rectifier modules — including hard-to-find and long-lead-time parts like the FS200R12KT4R_B11. Based in Palmetto, FL, we ship same-day on orders placed before 5PM EST. Volume pricing is available for MRO and production quantities. Contact our team today: 239-734-7566 | sales@igbts.us | igbts.us