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 mΩ

Key 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 verification

Availability details, reference designs and application notes can be aligned to specific EV charging, ESS and industrial drive requirements.

Original – SemiQ