Silicon carbide (SiC) MOSFETs now sit at the center of EV traction inverters, solar and storage systems, fast chargers, and industrial drives. Compared with silicon IGBTs, they switch faster, run hotter, and waste less energy. The supplier base is concentrated: TrendForce reported that the top five vendors captured roughly 91.9% of SiC power device revenue in 2023. Below are ten manufacturers worth shortlisting, ordered by market influence (revenue share, scale, and vertical integration), with HIITIO featured as a specialist in customizable SiC modules.

1. STMicroelectronics

Fundada: 1987 | Sede central: Geneva, Switzerland
Productos principales: STPOWER SiC MOSFETs, SiC diodes, SiC power modules
Sitio web: st.com | SiC MOSFET page: st.com/sic-mosfets

Company overview: STMicroelectronics (ST) is a global semiconductor leader and the largest SiC power device supplier by revenue. TrendForce’s 2023 ranking gave ST a 32.6% share, well ahead of every competitor. Its strength comes from scale and integration: ST supplies SiC MOSFETs to major automotive programs and is building a fully integrated 200mm SiC device and module campus in Catania, Italy. Controlling the chain from substrate to packaged module gives ST leverage over supply, cost, and quality. Its STPOWER portfolio covers EV traction inverters, on-board chargers, industrial motor drives, and solar systems, from 650 V up through 1200 V and beyond. For high-volume automotive programs, ST is often the first supplier engineers evaluate.

Featured product: STPOWER Gen 4 SiC MOSFETs (750 V/1200 V) offer lower on-resistance and faster switching than the prior generation. Their die is 12% to 15% smaller than Gen 3, enabling compact converters for 400 V and 800 V EV traction inverters, industrial drives, and AI server power.

2. onsemi

Fundada: 1999 | Sede central: Scottsdale, Arizona, USA
Productos principales: EliteSiC MOSFETs, SiC diodes, SiC power modules, gate drivers
Sitio web: onsemi.com | SiC MOSFET page: EliteSiC MOSFETs

Company overview: onsemi climbed from fourth to second place in TrendForce’s 2023 SiC revenue ranking, driven largely by its automotive EliteSiC line. Its differentiator is vertical integration. After acquiring GT Advanced Technologies (GTAT), onsemi’s self-sufficiency in SiC substrate material passed 50%, and it manufactures from crystal growth through finished devices. It also expanded its SiC wafer fab in Bucheon, South Korea, with a planned move to 8-inch wafers. The business centers on EV traction, on-board charging, solar inverters, and energy infrastructure. AEC-Q101 qualified parts and secure, traceable supply make onsemi a common choice for automotive programs that cannot tolerate shortages.

Featured product: EliteSiC MOSFETs span 650 V, 900 V, and 1200 V classes in TO-247 and D2PAK-7L packages. Parts such as the NVBG015N065SC1 (650 V, 12 mΩ typical) are AEC-Q101 qualified and target on-board chargers, DC/DC converters, and PFC stages.

3. Infineon Technologies

Fundada: 1999 (spun off from Siemens) | Sede central: Neubiberg (Munich), Germany
Productos principales: CoolSiC MOSFETs (discrete and module), gate drivers, IGBTs
Sitio web: infineon.com | SiC MOSFET page: CoolSiC MOSFETs

Company overview: Infineon is a global leader in power semiconductors and ranked third in TrendForce’s 2023 SiC revenue ranking with a 16.5% share. Nearly half of its SiC revenue comes from industrial applications, giving it broad exposure to solar, EV charging, and drives, while its automotive business has grown through design wins such as the Xiaomi SU7. Unlike ST and onsemi, Infineon does not grow its own SiC crystals and relies on a diversified supplier base to secure materials. Its Kulim, Malaysia fab is central to capacity expansion, and the company has produced 8-inch wafer samples ahead of future volume production. Engineers value its deep application notes and gate driver ecosystem.

Featured product: The CoolSiC MOSFET G2 discrete family spans 650 V to 2000 V, with on-resistance from 7 mΩ to 1000 mΩ. The 1200 V G2 devices support overload operation up to 200°C, a 2 µs short-circuit rating, and a 4.2 V gate threshold, in TO-247-4, D²PAK-7L, and Q-DPAK packages.

4. Wolfspeed

Fundada: 1987 (as Cree Research) | Sede central: Durham, North Carolina, USA
Productos principales: SiC MOSFETs (discrete, bare die, modules), SiC Schottky diodes, SiC materials
Sitio web: wolfspeed.com | SiC MOSFET page: Discrete SiC MOSFETs

Company overview: Wolfspeed is the pioneer of commercial SiC and the world’s best-known SiC materials supplier, ranking fourth in TrendForce’s 2023 power device revenue table with an 11.1% share. Its Mohawk Valley fab, opened in 2022, was the first purpose-built, fully automated 200mm SiC fab. The company filed for Chapter 11 protection on June 30, 2025, and emerged on September 29, 2025, after cutting total debt by roughly 70%. It now positions itself as a vertically integrated 200mm manufacturer with a self-funded growth plan. Buyers should weigh Wolfspeed’s technology heritage and materials depth against its ongoing manufacturing ramp, and it recently announced automotive MOSFETs for Toyota BEV on-board chargers.

Featured product: The Gen 4 1200 V portfolio includes the C4MS discrete MOSFET family in TO-247-4 and top-side-cooled packages, plus bare die options for custom modules. These parts are optimized for hard-switched solar, energy storage, EV charging, UPS, and motor drive applications.