The STP20NF20 is a high-performance N-channel power MOSFET manufactured by STMicroelectronics, belonging to the discrete semiconductor category and specifically classified as a single MOSFET transistor. This device is engineered using advanced MOSFET (Metal Oxide) technology and is part of the STripFET series, designed to address the critical challenges of power switching applications where high voltage handling, efficient current conduction, and thermal management are paramount.
This power MOSFET delivers exceptional functionality with its ability to handle drain-to-source voltages up to 200V while supporting continuous drain currents of 18A at 25°C case temperature. The device features a maximum power dissipation of 110W (Tc), making it suitable for demanding power management applications. Its low on-resistance characteristics are demonstrated by the maximum Rds(on) of 125 milliohms at 10A drain current and 10V gate-source voltage, ensuring minimal conduction losses and improved efficiency. The gate threshold voltage is specified at a maximum of 4V at 250µA drain current, while the maximum gate charge is 39 nC at 10V gate voltage, contributing to fast switching performance.
The STP20NF20 is housed in the industry-standard TO-220 package (TO-220-3), which provides excellent thermal dissipation capabilities and mechanical robustness for through-hole mounting applications. This packaging choice addresses the design challenge of heat management in power electronics while ensuring reliable electrical connections. The device operates across an extended temperature range from -55°C to 175°C junction temperature, making it suitable for harsh environmental conditions and industrial applications.
Key specifications include a maximum gate-source voltage rating of ±20V, input capacitance of 940 pF maximum at 25V drain-source voltage, and optimal drive voltage of 10V for achieving minimum on-resistance. The device is RoHS3 compliant, meeting current environmental regulations, and is supplied in tube packaging with quantities of 2103 units available.
The primary advantages of this MOSFET include its high voltage capability combined with substantial current handling, low on-resistance for improved efficiency, fast switching characteristics due to optimized gate charge, robust TO-220 packaging for superior thermal performance, and wide operating temperature range for versatile application deployment. Its compatibility extends to various power supply topologies, motor control circuits, switching regulators, and general-purpose power switching applications.
Primary application areas encompass switch-mode power supplies, DC-DC converters, motor drives and control systems, automotive electronics, industrial automation equipment, LED lighting drivers, battery management systems, and general power switching circuits where high efficiency and reliability are required.
Equivalent and alternative models include the IRF540N and IRFZ44N from Infineon Technologies, which offer similar voltage and current ratings in TO-220 packages. The FQP20N20C from ON Semiconductor provides comparable specifications with 200V/20A ratings. Vishay's SiHF20N20E and International Rectifier's IRFB20N20D serve as direct alternatives with matching electrical characteristics. Additional equivalent options include the STF20NF20 (surface-mount version from the same manufacturer), NTF20N20 from ON Semiconductor, and the AOT20N20 from Alpha & Omega Semiconductor, all offering similar voltage, current, and resistance specifications suitable for interchangeable use in most power switching applications while maintaining comparable performance characteristics and thermal capabilities.
STP20NF20 (1)
STP20NF20 Key Technical Attributes
- N-Channel MOSFET
- 200V Drain to Source Voltage
- 18A Continuous Drain Current
STP20NF20 Packing Size
The STP20NF20 is offered in a TO-220-3 package, which is made from heat-resistant plastic and features a metal tab for enhanced thermal dissipation. The standard TO-220 case is widely recognized for its robust construction and reliable electrical performance in power applications. It has three pins, suitable for through-hole mounting, ensuring secure connection and efficient power transfer. The tube packaging helps in easy storage and safe transportation of the devices.
STP20NF20 Application
This device is ideal for a range of high-performance switching applications including switch-mode power supplies (SMPS), motor control circuits, DC-DC converters, and power management modules in both industrial and consumer electronics. Its high voltage and current specifications suit demanding environments where reliability and efficiency are paramount.
STP20NF20 Features
The STP20NF20 utilizes advanced STripFET technology, which ensures low on-resistance and high-speed switching performance. With a maximum drain to source voltage of 200V and a continuous drain current up to 18A (TC), this MOSFET is engineered for power-intensive applications. The low Rds(on) of 125mOhm at 10A and 10V minimizes losses and heat generation, enhancing overall system efficiency. Its maximum gate charge of 39 nC ensures compatibility with fast-switching drivers, while the input capacitance (Ciss) of 940 pF allows precise control in demanding scenarios. Its wide operating temperature range from -55°C to 175°C (TJ) means it can withstand harsh thermal environments. The ±20V gate-source voltage rating provides flexibility and protection against voltage spikes.
STP20NF20 Quality and Safety Features
The STP20NF20 meets ROHS3 compliance for environmental safety and is designed to perform reliably under stringent operating conditions. The robust TO-220 package offers excellent heat dissipation up to 110W (Tc), protecting the device from thermal failure. Its construction supports high surge currents and is optimized for rugged operation, providing system designers with confidence in product safety and longevity.
STP20NF20 Compatibility
This MOSFET’s industry-standard TO-220 package and electrical pinout make it compatible with a broad range of circuit boards and heatsinking solutions. It integrates seamlessly into replacement and new-design scenarios for discrete N-channel MOSFETs, especially within the STripFET series family. The typical gate drive voltage requirements (10V) allow it to fit within common power supply and automotive systems.
STP20NF20 Datasheet PDF
For comprehensive technical details and the most up-to-date information, our website provides the authoritative STP20NF20 datasheet directly from STMicroelectronics. We highly recommend downloading the datasheet from this page to ensure access to reliable design, application, and reliability data for your project.
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