STMicroelectronics N-Channel Power MOSFET, 500V, 20A, TO-247

The STMicroelectronics STW20NM50FD is a high-performance N-channel Power MOSFET featuring the advanced FDmesh™ technology. Combining a 500V drain-source voltage rating with a 20A continuous drain current, this component delivers efficient power switching with a low on-resistance of just 0.25 ohm. The integration of a fast intrinsic body diode is a key benefit of the FDmesh™ design, which pairs reduced conduction losses with excellent switching speeds.

This makes the MOSFET strongly recommended for bridge topologies, particularly Zero Voltage Switching (ZVS) phase-shift converters. It is an ideal choice for demanding applications such as ZVS phase-shift full bridge converters within Switch Mode Power Supplies (SMPS) and industrial welding equipment, where reliability and efficiency are critical.

Key Features & Benefits

• FDmesh™ Technology: Offers an optimal balance of low on-resistance and fast switching performance.
• Fast Body Diode: The intrinsic fast recovery diode enhances performance in bridge circuits.
• Robust Design: Features high dv/dt capability and is 100% avalanche tested for superior ruggedness.
• Driver-Friendly: Low input capacitance and gate charge simplify driver design and improve switching efficiency.
• Consistent Quality: Manufactured with tight process control for high yields and reliable performance.

With a high power dissipation rating of 214W and an operating temperature up to 150°C, this TO-247 packaged MOSFET is built for durability in challenging environments, providing a dependable solution for advanced power management designs.