The STP20N95K5 is a high-performance N-channel power MOSFET manufactured by STMicroelectronics, belonging to their SuperMESH5 series of discrete semiconductor devices. This single transistor component is specifically designed to address the demanding requirements of high-voltage switching applications where efficient power management and robust performance are critical.
This MOSFET features an impressive 950V drain-to-source voltage rating combined with a continuous drain current capability of 17.5A at 25°C, making it exceptionally well-suited for high-voltage power conversion and switching circuits. The device incorporates advanced MOSFET metal oxide technology that delivers superior electrical characteristics, including a maximum on-resistance of 330 milliohms at 9A drain current and 10V gate-source voltage, ensuring minimal conduction losses during operation.
The transistor's thermal performance is optimized with a maximum power dissipation of 250W and an operating temperature range from -55°C to 150°C junction temperature, enabling reliable operation in harsh environmental conditions. The gate threshold voltage is specified at a maximum of 5V at 100µA drain current, while the maximum gate charge is 40 nanocoulombs at 10V, contributing to efficient switching characteristics and reduced switching losses.
Key electrical specifications include a maximum gate-source voltage rating of ±30V, an input capacitance of 1500 picofarads at 100V drain-source voltage, and an optimal drive voltage of 10V for achieving minimum on-resistance. The device is housed in a standard TO-220-3 through-hole package, providing excellent thermal dissipation capabilities and ease of mounting on heatsinks for high-power applications.
This MOSFET is RoHS3 compliant, ensuring environmental compatibility and meeting modern regulatory standards. The through-hole mounting configuration and TO-220 package make it suitable for both prototype development and high-volume production applications where reliable mechanical connections and thermal management are essential.
Primary application areas include switch-mode power supplies, motor drives, inverters, DC-DC converters, uninterruptible power supplies, welding equipment, and various industrial power control systems. The high voltage rating makes it particularly valuable in applications requiring isolation and voltage step-up or step-down functionality, while the robust current handling capability supports demanding load conditions.
Equivalent and alternative models that offer similar performance characteristics include the IRFP460 and IRFP4668 from Infineon Technologies, the APT20M95K from Microsemi, and STMicroelectronics' own STP20NM95 variant. Other comparable options include the FCH20N95 from Fairchild Semiconductor (now part of ON Semiconductor), the 2SK3878 from Toshiba, and the SPW20N95C3 from Infineon. When selecting alternatives, engineers should carefully compare voltage ratings, current capabilities, on-resistance values, and thermal characteristics to ensure proper circuit functionality and reliability. The SuperMESH5 series also includes related models with different current and voltage ratings, such as the STP16N95K5 and STP25N95K5, providing scalable solutions for various power requirements within the same technology family.
STP20N95K5 (1)
STP20N95K5 Key Technical Attributes
MOSFET N-Channel, 950V, 17.5A, TO-220-3 package
RoHS
ROHS3 Compliant
Operating Temperature
-55°C ~ 150°C (TJ)
STP20N95K5 Packing Size
The STP20N95K5 is packaged in a TO-220-3 casing, which is commonly utilized for medium to high-power applications and features a through-hole mounting style for secure board placement. The device is supplied in tube packaging, ideal for robust protection and efficient handling during automated assembly. The TO-220-3 package size offers excellent thermal performance, supporting up to 250W power dissipation when mounted on a suitable heat sink. The pin configuration includes drain, source, and gate terminals, precisely mapped to maximize versatility in circuit design.
STP20N95K5 Application
This MOSFET is engineered for high-voltage switching applications, including power supplies, lighting ballasts, industrial converters, and motor drivers. Its high drain-source voltage rating (up to 950V) and substantial continuous drain current (17.5A at 25°C) make it especially suitable for demanding environments where efficiency and reliability are critical.
STP20N95K5 Features
The STP20N95K5 utilizes advanced SuperMESH5 technology, delivering enhanced switching speed, reduced gate charge (40 nC @ 10V), and minimized input capacitance (1500 pF @ 100V), ensuring lower conduction and switching losses. Its maximum Rds(on) of 330mOhm at 9A and 10V allows for efficient power management, while the maximum gate-source voltage tolerance of ±30V adds robustness for diverse driver architectures. The MOSFET operates reliably over a wide temperature range (-55°C ~ 150°C), ensuring stability in harsh environments. Through its N-channel design, the device provides superior efficiency in both linear and switching modes.
STP20N95K5 Quality and Safety Features
Compliant with ROHS3 standards, the STP20N95K5 meets rigorous environmental and safety regulations. Its sturdy TO-220-3 package and wide safe operating temperature ensure longevity and dependability under extreme conditions. Enhanced thermal design enables safe operation at high power levels, while gate protection features minimize the risk of damage from electrical transients.
STP20N95K5 Compatibility
The STP20N95K5 is compatible with standard TO-220-3 sockets and heat sinks, enabling easy integration into new and existing designs. It interfaces seamlessly with popular driver circuits thanks to its conventional voltage and current ratings, making it an ideal replacement for many N-channel power MOSFETs in the same voltage/current class.
STP20N95K5 Datasheet PDF
Our website hosts the most authoritative and up-to-date datasheet for the STP20N95K5. We strongly recommend downloading the datasheet directly from this page to access comprehensive technical specifications, application notes, and performance curves, ensuring precise and reliable system integration.
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