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LATEST NEWS / SiC / WBG2 Min Read
Wolfspeed Inc. announced that its automotive MOSFETs will power onboard charger systems for Toyota Battery Electric Vehicles. The adoption underscores Toyota’s confidence in Wolfspeed’s ability to meet stringent quality and long-term reliability requirements.
“Toyota is known for its uncompromising approach to quality and reliability, and we’re honored to be supporting their next wave of electrification,” said Robert Feurle, Chief Executive Officer. “Wolfspeed’s U.S.-based supply chain and domestic silicon carbide manufacturing footprint ensure the stability and continuity they need to achieve their electrification goals.”
Silicon carbide has become the industry standard for high-voltage onboard power systems as the automotive sector accelerates toward clean energy vehicles. Beyond enabling fast, efficient, high-power-density traction inverters, silicon carbide brings clear advantages to onboard automotive auxiliary power systems such as onboard chargers—supporting shorter charging times, reducing energy loss across the vehicle, improving driving range, and lowering recharge costs over the vehicle’s lifespan.
“Our work with Toyota is built upon years of trust in engineering expertise, supply reliability, as well as a shared obsession with quality,” said Cengiz Balkas, Chief Business Officer. “This reinforces our role in driving electrification with silicon carbide technology that delivers performance, efficiency and safety.”
Wolfspeed supports a broad range of EV platforms directly with OEMs and through Tier 1 partners, making its technology a foundational element of the expanding EV ecosystem.
Original – Wolfspeed
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LATEST NEWS / PRODUCT & TECHNOLOGY / SiC / WBG2 Min Read
SemiQ Inc has broadened its third-generation QSiC™ MOSFET portfolio with seven new power modules that deliver industry-leading current density and thermal performance. The launch adds high-current S3 half-bridge, B2T1 six-pack and B3 full-bridge options engineered to raise system efficiency, simplify cooling, and cut switching losses in next-generation EV chargers, energy storage systems and industrial motor drives.
The expanded lineup targets the rising demand for ultra-efficient power conversion. In the standard 62 mm S3 half-bridge format, current capability reaches up to 608 A with junction-to-case thermal resistance as low as 0.07°C/W. The B2T1 six-pack modules integrate a complete three-phase power stage in a compact housing with RDS(on) values from 19.5 to 82 mΩ to streamline layout and minimize parasitics in motor drives and advanced AC-DC converters. The B3 full-bridge devices offer up to 120 A with on-resistance down to 8.6 mΩ and thermal resistance of 0.28°C/W, maximizing power density and efficiency for single-phase inverters and high-voltage DC-DC applications.
Quality and reliability measures include wafer-level gate-oxide burn-in to assure gate integrity and breakdown voltage testing beyond 1350 V. Built on SemiQ’s Gen3 SiC technology, the new modules operate at 18 V/-4.5 V gate drive and reduce both RONsp and turn-off energy (EOFF) by up to 30% versus prior generations.
Commenting on the release, Dr. Timothy Han said that EV infrastructure and new industrial applications demand ever-higher performance, and that the Gen3 full-bridge, half-bridge and six-pack modules—with higher current density and significantly lower on-resistance—are designed to meet those requirements.
Product list:
GCMX020A120B2T1P — Six-Pack, B2, 1200 V, 30 A, 19.5 mΩ
GCMX040A120B2T1P — Six-Pack, B2, 1200 V, 30 A, 39 mΩ
GCMX080A120B2T1P — Six-Pack, B2, 1200 V, 29 A, 82 mΩ
GCMX008B120B3H1P — Full-Bridge, B3, 1200 V, 120 A, 8.6 mΩ
GCMX016B120B3H1P — Full-Bridge, B3, 1200 V, 95 A, 16.6 mΩ
GCMX2P3B120S3B1-N — Half-Bridge, S3, 1200 V, 608 A, 2.4 mΩ
GCMX3P5B120S3B1-N — Half-Bridge, S3, 1200 V, 428 A, 3.6 mΩKey benefits:
• Higher power density through industry-leading current ratings and low RDS(on)
• Lower thermal resistance to ease cooling and reduce system size and cost
• Integrated topologies (six-pack, full-bridge, half-bridge) to simplify layout and minimize parasitics
• Up to 30% reduction in RONsp and EOFF compared to previous generations
• Robust screening, including wafer-level gate-oxide burn-in and >1350 V breakdown verificationAvailability details, reference designs and application notes can be aligned to specific EV charging, ESS and industrial drive requirements.
Original – SemiQ
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LATEST NEWS / PRODUCT & TECHNOLOGY / SiC / WBG2 Min Read
ROHM has commenced mass production of its SCT40xxDLL series silicon carbide (SiC) MOSFETs in TO-Leadless (TOLL) packages, offering a significant 39% improvement in thermal performance compared to conventional TO-263-7L packages with equivalent voltage ratings and on-resistance. The new series is designed to meet the growing demand for compact, high-power components in applications such as AI server power supplies and energy storage systems (ESS), where power density and miniaturization are increasingly critical.
As modern industrial and consumer equipment evolves, applications such as compact photovoltaic (PV) inverters and high-efficiency server systems face dual requirements: increasing power capability and reduced system size. This is especially true for power factor correction (PFC) circuits in slim-profile “pizza box” server power supplies, where discrete semiconductors must conform to strict thickness constraints of 4 mm or less.
ROHM’s SCT40xxDLL series responds to these requirements with a compact 2.3 mm low-profile form factor—approximately 50% thinner than traditional equivalents—and a reduced component footprint by about 26%. The series also distinguishes itself with a rated drain-source voltage of up to 750 V, surpassing the standard 650 V found in many TOLL package MOSFETs. This higher voltage rating contributes to increased surge voltage tolerance, lower gate resistance requirements, and reduced switching losses.
The SCT40xxDLL lineup includes six models with typical on-resistance values ranging from 13 mΩ to 65 mΩ. Maximum current ratings span up to 120 A, depending on the device, making them suitable for a wide range of high-performance power conversion systems. Mass production began in September 2025.
SCT40xxDLL Series Overview:
Part Number VDSS Max (V) RDS(on) Typ (mΩ) ID Max (A) PD Max (W) Storage Temp (°C) SCT4013DLL 750 13 120 405 -40 to +175 SCT4020DLL 750 20 80 277 -40 to +175 SCT4026DLL 750 26 61 214 -40 to +175 SCT4036DLL 750 36 46 164 -40 to +175 SCT4045DLL 750 45 37 133 -40 to +175 SCT4065DLL 750 65 26 100 -40 to +175 These devices are suitable for use in:
- Industrial power supplies for AI servers and data centers
- Photovoltaic inverters and ESS
- General-purpose consumer power supply applications
ROHM also provides simulation models for all six variants via its official website to assist engineers with rapid circuit evaluation and design. The SCT40xxDLL series is available through authorized distributors.
Original – ROHM