STP28NM50N N-Channel MOSFET 500V 21A TO-220AB | STMicroelectronics MDmesh™ II Series

High-Performance STP28NM50N N-Channel MOSFET for Power Electronics Applications

STMicroelectronics' STP28NM50N MDmesh™ II Series MOSFET represents a significant advancement in power transistor technology, delivering exceptional performance for demanding industrial and automotive applications. This N-channel power MOSFET combines high-voltage capability (500V) with robust current handling (21A) in a compact TO-220AB package, making it an ideal choice for power conversion systems requiring both efficiency and reliability.

Advanced Technology for Enhanced Efficiency

Part of the renowned MDmesh™ II family, the STP28NM50N leverages STMicroelectronics' proprietary technology to achieve ultra-low on-resistance (158mΩ max @ 10.5A, 10V) while maintaining fast switching characteristics. The device's optimized gate charge (50nC @ 10V) enables efficient operation in high-frequency applications such as switch-mode power supplies (SMPS), motor control circuits, and renewable energy systems.

Key electrical specifications include:

Robust Design for Demanding Environments

The STP28NM50N's through-hole TO-220 package provides excellent thermal dissipation capabilities, supporting continuous operation at 150W power dissipation (Tc). With a guaranteed operating temperature range up to 150°C (TJ) and ±25V gate voltage tolerance, this MOSFET demonstrates exceptional durability in harsh environments. Its 4V gate threshold voltage (max @ 250µA) ensures compatibility with standard logic-level drivers while maintaining stable performance across temperature variations.

Key design advantages include:

• High dv/dt immunity for reliable switching
• Integrated protection against thermal runaway
• Low input capacitance (1735pF max @ 25V) for reduced driver stress
• Lead-free, RoHS-compliant packaging

Comprehensive Application Support

As part of STMicroelectronics' MDmesh™ II portfolio, the STP28NM50N benefits from comprehensive design resources including SPICE models, application notes, and thermal simulation tools. The device is supported by a global distribution network with typical stock availability of 7,250+ units, ensuring reliable supply for production environments. Priced competitively at $2.50 per unit (in volume), this MOSFET offers exceptional value for money compared to alternative solutions in its class.

Common applications include:

• Industrial motor drives and variable frequency drives
• Photovoltaic inverters and energy storage systems
• Automotive powertrain and charging systems
• High-end consumer electronics power supplies

Technical Excellence in Power Semiconductor Design

The STP28NM50N exemplifies STMicroelectronics' commitment to innovation in power management solutions. Its advanced silicon technology achieves a perfect balance between conduction and switching losses, enabling designers to create more efficient and compact power systems. The device's 500V rating meets the requirements of modern high-voltage applications while maintaining compatibility with standard PCB layouts through its TO-220-3 pin configuration.

When compared to similar devices in the market, the STP28NM50N stands out through:

Conclusion: Powering the Future of Electronics

With its combination of high voltage capability, low conduction losses, and robust packaging, the STP28NM50N N-channel MOSFET sets a new benchmark for performance in power electronics. Whether you're designing industrial automation equipment, electric vehicle systems, or renewable energy converters, this device offers the perfect blend of electrical performance, thermal reliability, and design flexibility. As an active product with guaranteed long-term availability, it represents a future-proof solution for demanding applications requiring proven performance in a compact form factor.

Tags: N-Channel MOSFET, High Voltage Transistor, TO-220 Package, Power Management, MDmesh II Series