STMicroelectronics

STW20NM50FD

STW20NM50FD Description

The STW20NM50FD from STMicroelectronics is a high-performance N-channel 500V, 20A power MOSFET designed for demanding switching applications. Packaged in a robust TO-247-3 format, it features FDmesh™ technology, delivering ultra-low on-resistance (250mΩ @ 10A, 10V) and superior switching efficiency. With a gate charge (Qg) of 53nC @ 10V and input capacitance (Ciss) of 1380pF @ 25V, it ensures fast switching speeds while minimizing power losses. The device operates reliably up to 150°C (TJ) and supports a ±30V gate-source voltage (Vgs), making it suitable for high-voltage environments.

STW20NM50FD Features

• High Voltage & Current Rating: 500V Vdss and 20A continuous drain current (Id) for robust power handling.
• Low Rds(on): 250mΩ @ 10V Vgs ensures minimal conduction losses.
• Fast Switching: Optimized Qg (53nC) and Ciss (1380pF) for efficient high-frequency operation.
• Thermal Performance: 214W (Tc) power dissipation and TO-247-3 package for superior heat management.
• Reliability: ROHS3 compliant, REACH unaffected, and MSL 1 (unlimited) for long-term durability.
• Wide Vgs Range: ±30V gate drive tolerance enhances flexibility in circuit design.

STW20NM50FD Applications

• Switched-Mode Power Supplies (SMPS): Ideal for AC-DC converters and high-voltage DC-DC stages.
• Motor Drives & Inverters: Efficiently controls brushless DC (BLDC) motors and industrial inverters.
• Renewable Energy Systems: Suitable for solar inverters and wind power converters due to high voltage tolerance.
• Industrial & Automotive Systems: Used in power factor correction (PFC), UPS systems, and electric vehicle (EV) charging.

Conclusion of STW20NM50FD

The STW20NM50FD stands out as a high-efficiency, high-reliability MOSFET for 500V power switching applications. Its low Rds(on), fast switching, and thermal robustness make it a preferred choice for SMPS, motor drives, and renewable energy systems. With STMicroelectronics' FDmesh™ technology, it outperforms conventional MOSFETs in power density and energy efficiency, ensuring optimal performance in demanding industrial and automotive environments.