Automotive-grade 1,200 V SiC MOSFET saves space in EV chargers and motors

January 9, 2025

The SCT025W120G3-4AG MOSFET from STMicroelectronics, one of the world’s largest manufacturers of SiC devices, enables faster switching, lowers losses and improves thermal management in automotive and industrial applications.

The SCT025W120G3-4AG, part of the third generation of silicon carbide (SiC) MOSFETs from STMicroelectronics, combines very low on-resistance over the entire temperature range with low capacitances and high switching performance. Use of the SCT025W120G3-4AG enables power-system designers to increase the application’s operating frequency, raise energy efficiency, and reduce system size and weight compared to systems based on conventional silicon MOSFETs.

 

SiC MOSFETs also have a higher voltage rating relative to their die size compared to silicon alternatives, making the technology an excellent choice for electric vehicles (EVs) and EV rapid chargers.

 

The high-frequency switching capability of the SCT025W120G3-4AG enables the use of smaller passive components, producing more compact and lightweight designs for the electrical equipment in vehicles.

 

The packages in which ST supplies its third-generation SiC MOSFETs offer innovative design features, such as specially placed cooling tabs that simplify connection to base-plates and heat spreaders in EV applications.

Features

  • AEC-Q101 qualified
  • Very fast and robust intrinsic body diode
  • 27 mΩ on-resistance
  • 56 A maximum continuous drain current
  • Source sensing pin for increased efficiency
  • 200°C maximum junction temperature

Applications

  • Electric vehicles:
    • Main traction inverters
    • On-board chargers
    • Dc-dc converters
EXTRA_ST_SCT025W120G3_4AG

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