WeEn Semiconductors has introduced its new WMSC family of silicon carbide (SiC) power modules, expanding its portfolio for solid-state transformers (SSTs), high-power EV charging systems, smart grids, and other advanced power conversion applications. The launch includes more than 20 module variants with voltage ratings ranging from 1,200 V to 2,300 V, designed to meet the growing demand for efficient, high-voltage electrical infrastructure.
The WMSC series is built for solid-state transformer designs, which replace traditional low-frequency transformers with power electronics based on wide-bandgap semiconductors. This approach delivers higher efficiency—up to 98%—while reducing system size and increasing power density. The modules support both AC/DC input stages and isolated DC/DC conversion.
The portfolio offers low on-resistance values down to 1.5 mΩ and comes in multiple package options to suit different power and thermal requirements. WeEn also provides customized module designs tailored to specific electrical and mechanical needs.
For power factor correction (PFC) stages, the company offers both three-level and two-level module topologies. Three-level designs help reduce switching losses and electromagnetic interference (EMI), while two-level versions provide a more compact design with simpler control. These modules are suitable for applications such as AI data centers, enabling direct conversion from 35 kVAC distribution networks to an 800 VDC bus.
The WMSC family also includes half-bridge modules for LLC resonant and dual-active-bridge (DAB) converters used in isolated DC/DC stages. Available in B2, B3, and 62 mm screw-mount package formats, the modules support a wide range of converter designs.
Designed with low parasitic inductance, the modules enable fast SiC switching while simplifying PCB layout and system integration. Their optimized pin layout improves gate-driver placement and maintains electrical isolation. Additional customization options include different substrate materials, housing types, encapsulation, terminal configurations, plating finishes, and pre-applied thermal interface materials.
The WMSC power modules are available now for engineering evaluation and volume production, targeting applications in AI infrastructure, renewable energy systems, industrial power electronics, solid-state transformers, and ultra-fast EV charging.
