Toshiba Ships 1200V Trench-Gate SiC MOSFET Samples

Per the Business Wire press release, Toshiba Electronic Devices & Storage Corporation started shipping test samples of "TW007D120E," a 1200V trench-gate silicon-carbide (SiC) MOSFET primarily intended for power supply systems in next-generation AI data centers and renewable-energy equipment. The release states TW007D120E reduces R DS(on)A by approximately 58% and improves the figure of merit, On-resistance × gate-drain charge (R DS(on) × Q gd), by approximately 52% compared with Toshiba's current products. The release also notes the device is offered in a QDPAK package that supports top-side cooling and that Toshiba will prepare for mass production during fiscal year 2026 (Business Wire).

Per the Business Wire release, TW007D120E uses a proprietary trench-gate structure to achieve the claimed reductions in conduction loss and switching loss. The release frames the device as targeting higher-efficiency power conversion and compatibility with 800V high-voltage direct current (HVDC) architectures common in emerging AI datacenter power designs (Business Wire).

Editorial analysis - technical context: Higher-efficiency 1200V SiC MOSFETs are a near-term hardware lever for lowering power-conversion losses in PSUs that feed high-power AI servers. Industry-pattern observations: in power electronics, a simultaneous reduction in R DS(on)A and improvement in the R DS(on) × Q gd figure of merit typically enables both lower steady-state conduction losses and faster switching, which together reduce thermal stress and allow greater power density in the same package footprint.

Industry context: As hyperscale operators and OEMs explore 800V HVDC distribution to reduce cabling and conversion stages, component-level gains at the 1200V switch node matter. Improved SiC MOSFET performance can translate into smaller heat-sinking, fewer cooling constraints, and potentially lower total-cost-of-ownership for data-center power infrastructure. These are generic industry implications and do not assert Toshiba's internal roadmap beyond the company statements in the press release.

Editorial analysis: Observers should follow independent benchmark data from early adopter PSU vendors, thermal and reliability data for QDPAK implementations, and whether competing SiC suppliers publish comparable metrics. Also watch for announcements of qualification runs or design wins from server PSU and renewable-energy OEMs, and for any formal Toshiba datasheet updates that provide test conditions behind the quoted 58% and 52% improvements.