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FOR IMMEDIATE RELEASE No. 3906

Mitsubishi Electric to Ship 5th-generation SiC-MOSFET Bare Die Samples

Industry-leading low on-resistance, approx. 25% less than existing products, enhances xEV power efficiency
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TOKYO, June 4, 2026Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it will begin sequentially shipping samples in late June of two types of new 5th-generation silicon carbide metal-oxide-semiconductor field-effect transistors (SiC-MOSFETs) in bare die form. The new SiC-MOSFETs are designed for use in inverters for drive motors and eAxles1 of electric vehicles (EVs), plug-in hybrid vehicles (PHEVs), and other electrified vehicles (xEVs). They feature Mitsubishi Electric’s proprietary trench structure2 and achieve industry-leading3 low on-resistance4 approximately 25% lower5 than that of existing products.

 

The products will be displayed at PCIM Expo & Conference 2026 (June 9-11, Nuremberg, Germany) as well as exhibitions in Japan, China and other countries.

 

Mitsubishi Electric’s 5th-generation SiC-MOSFET bare dies will contribute to the performance and miniaturization of xEV inverters and eAxles, which will extend the range and improve the power efficiency of xEVs. In addition, the company’s proprietary manufacturing process technology suppresses performance degradation and fluctuations in power loss and on-resistance, ensuring stable quality even after long-term use, and contributing to the durability and performance of xEV inverters and eAxles.


  • 1

    A drive unit integrating the motor, inverter, and gearbox, which forms the heart of an EV.

  • 2

    A structure where grooves (trenches) are etched from the wafer surface and filled with gate electrodes.

  • 3

    Mitsubishi Electric’s research as of May 29, 2026.

  • 4

    On-resistance refers to the resistance value generated between the drain and source when a power semiconductor such as a MOSFET is in the switch-on state.

  • 5

    When comparing the on-resistance of the new product and the conventional product (4th generation trench SiC-MOSFET) with the same rated voltage and threshold voltage adjusted.

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