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Infineon supplies CoolSiC MOSFETs for Toyota bZ4X power electronics
Monday, February 9, 2026 at 09:40 AM
Infineon Technologies has supplied its CoolSiC MOSFET power semiconductors for Toyota's bZ4X electric vehicle. The chips utilize a trench gate structure to reduce chip size and on-resistance, supporting high-density designs for on-board chargers and DC/DC converters.
Context
Toyota has integrated Infineon Technologies’ CoolSiC power semiconductors into the traction inverter of its latest bZ4X electric vehicle. This transition from traditional silicon to silicon carbide technology is a strategic move for Toyota to improve drivetrain efficiency and extend driving range. The CoolSiC modules provide higher power density and significantly reduced energy loss, allowing the bZ4X to achieve better performance and faster charging cycles.
For investors, this deal validates Infineon’s leadership in the power semiconductor market, which is projected to grow by over 20% annually as EV adoption scales globally. Securing a primary spot in Toyota’s supply chain strengthens Infineon’s position against competitors like STMicroelectronics and Wolfspeed. This partnership highlights the critical role of advanced materials in the automotive supply chain as manufacturers pivot toward high-efficiency battery electric vehicle platforms through 2026 and beyond.
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