The Toshiba TW007D120E SiC MOSFET has officially started shipping as test samples, marking a significant milestone for power supply systems across the globe. Announced by Toshiba Electronic Devices & Storage Corporation, this newly developed 1200V trench-gate silicon carbide (SiC) MOSFET is primarily engineered to handle the rigorous demands of next-generation AI data centers. At aarokatech.com, we continually track the semiconductor breakthroughs that power modern IT infrastructure, and this new component is uniquely positioned to optimize both renewable energy equipment and high-performance computing systems.
The Growing Power Demands of AI Data Centers
The explosive growth of generative artificial intelligence is fundamentally altering the hardware landscape. Training and deploying large language models require high-power AI servers that run continuously, creating an unprecedented surge in data center power consumption.
To mitigate energy costs and reduce environmental impact, facility operators are rapidly transitioning to 800V high-voltage direct current (HVDC) architectures. These HVDC setups significantly reduce transmission losses, but they require robust power supply systems capable of delivering superior power conversion efficiency and high power density. The Toshiba TW007D120E SiC MOSFET was specifically developed to address these exact constraints, helping to drive down overall power consumption while enabling the miniaturization of critical power hardware.
How the Toshiba TW007D120E SiC MOSFET Revolutionizes Power Conversion
At the core of this new semiconductor is a proprietary trench-gate structure. By embedding gate electrodes into fine trenches within the semiconductor substrate, Toshiba achieves an industry-leading low On-resistance per unit area (RDS(on)A).
Lower On-resistance directly translates to a reduction in conduction loss. However, power electronics engineering usually involves a trade-off: minimizing conduction loss often increases switching loss. The Toshiba TW007D120E SiC MOSFET overcomes this barrier. Compared to Toshiba’s 3rd-generation SiC MOSFET (the TW015Z120C), the newly developed device reduces RDS(on)A by approximately 58%. Furthermore, it improves the critical figure of merit—On-resistance multiplied by gate-drain charge (RDS(on) × Qgd)—by approximately 52%.
By drastically cutting both conduction and switching losses, the component ensures highly efficient operation. This means less energy is wasted as heat, which subsequently lowers the cooling burden on the data center’s HVAC systems and boosts overall performance.
Advanced Packaging: QDPAK and Top-Side Cooling
Thermal management is just as crucial as electrical efficiency. The Toshiba TW007D120E SiC MOSFET is housed in a high-performance QDPAK package designed specifically to support top-side cooling.
Traditional bottom-side cooling dissipates heat into the printed circuit board (PCB), which can cause thermal bottlenecks in densely packed server racks. Top-side cooling allows heat to be drawn directly away from the component into dedicated heat sinks or liquid cooling plates. This packaging innovation contributes directly to enhanced thermal performance in the power stage, enabling the high power density implementation that next-generation AI data centers desperately require.
Key Applications Beyond Data Centers
While AI servers are the primary target, the robust 1200V rating and thermal efficiency make this trench-gate MOSFET highly versatile across multiple sectors. Key application areas include:
- Power supplies for data centers: High-efficiency AC-DC and DC-DC converters.
- Photovoltaic inverters: Enhancing the efficiency of solar energy capture and grid distribution.
- Uninterruptible power supply (UPS): Ensuring reliable battery backup systems for critical infrastructure.
- EV charging stations: Handling high-voltage fast charging for modern electric vehicles.
- Energy storage systems: Managing industrial and grid-scale battery arrays safely.
- Industrial motors: Providing precise, low-loss control for heavy machinery.
Main Specifications and Features
The device boasts a low gate drive voltage (VGS_ON = 15V to 18V) and exceptional electrical characteristics designed to maximize efficiency.
| Parameter | Symbol | Test Conditions | Typical Value |
| Drain-Source Voltage | VDSS | Absolute Maximum | 1200 V |
| Drain Current (DC) | ID | Tc = 25°C | 172 A |
| Drain-Source On-Resistance | RDS(on) | VGS = 15V | 7.0 mΩ |
| Gate Threshold Voltage | Vth | VDS = 10V | 3.0 to 5.0 V |
| Total Gate Charge | Qg | VGS = 15V | 317 nC |
| Gate-Drain Charge | Qgd | VGS = 15V | 33 nC |
| Diode Forward Voltage | VSD | VGS = 0V | 3.2 V |
Note: Specifications are based on test samples (Tvj=25°C) and are subject to change before mass production.
Future Outlook and Mass Production
Looking ahead, Toshiba is actively preparing for the mass production of the Toshiba TW007D120E SiC MOSFET, slated for fiscal year 2026. The company also plans to expand this product lineup, with dedicated developments aimed at the automotive sector to support the growing EV market.
Supported by findings from the New Energy and Industrial Technology Development Organization (NEDO) under project JPNP21029, this silicon carbide technology represents a critical step forward. By deploying the Toshiba TW007D120E SiC MOSFET in servers and industrial equipment, engineers can significantly cut CO₂ emissions, bringing the tech industry closer to realizing a fully decarbonized society.
