STMicroelectronics

STB140NF55T4

STB140NF55T4 Description

The STB140NF55T4 from STMicroelectronics is a high-performance N-channel power MOSFET designed for demanding applications requiring efficient power management. Part of the STripFET™ II series, this device offers a 55V drain-to-source voltage (Vdss) and a continuous drain current (Id) of 80A (Tc), making it suitable for high-current switching applications. Packaged in a D2PAK (TO-263) surface-mount form factor, it combines robust thermal performance with compact design. The MOSFET features a low on-resistance (Rds On) of 8mOhm at 10V gate drive, minimizing conduction losses and improving efficiency. With a gate charge (Qg) of 142nC and an input capacitance (Ciss) of 5300pF, it ensures fast switching speeds while maintaining stability.

STB140NF55T4 Features

• Low Rds On: 8mOhm @ 40A, 10V reduces power dissipation and enhances efficiency.
• High Current Handling: 80A continuous drain current (Tc) for robust performance in high-power circuits.
• Fast Switching: Optimized gate charge (142nC) and capacitance for improved switching efficiency.
• Thermal Performance: 300W power dissipation (Tc) ensures reliability under high-load conditions.
• Wide Vgs Range: ±20V gate-to-source voltage tolerance for flexible drive compatibility.
• RoHS3 & REACH Compliant: Meets environmental and safety standards for global use.
• D2PAK Package: Surface-mount design with excellent thermal conductivity for PCB integration.

STB140NF55T4 Applications

This MOSFET is ideal for:

• DC-DC Converters: Efficient power conversion in industrial and automotive systems.
• Motor Control: High-current driving in robotics, drones, and industrial automation.
• Power Supplies: Switching regulators and SMPS designs requiring low-loss operation.
• Battery Management: Protection circuits and load switches in energy storage systems.
• LED Drivers: High-efficiency lighting solutions with precise current control.

Conclusion of STB140NF55T4

The STB140NF55T4 stands out as a high-efficiency, high-current MOSFET with superior thermal and electrical characteristics. Its low Rds On, fast switching, and robust packaging make it a preferred choice for power electronics designers. Whether used in automotive, industrial, or consumer applications, this device delivers reliable performance while adhering to stringent environmental standards. For engineers seeking a balance of power handling and efficiency, the STB140NF55T4 is a compelling solution.