STMicroelectronics STF25N80K5 N-Channel MOSFET (800V, 19.5A, TO-220FP)
- Brand: STMicroelectronics
- Product Code: STF25N80K5
- Availability: In Stock
$1.45
- Ex Tax: $1.45
High-Performance STF25N80K5 N-Channel MOSFET for Demanding Power Applications
In the world of power electronics, selecting the right MOSFET can make all the difference between ordinary performance and exceptional reliability. STMicroelectronics' STF25N80K5 N-Channel MOSFET emerges as a cutting-edge solution for engineers seeking robust voltage handling, efficient power delivery, and industrial-grade durability. Part of the renowned SuperMESH5™ family, this 800V power transistor combines advanced silicon technology with practical TO-220FP packaging to deliver outstanding performance in switching applications.
SuperMESH5™ Technology: The Foundation of Superior Performance
At the heart of this MOSFET lies STMicroelectronics' proprietary SuperMESH5™ technology, which revolutionizes the balance between conduction and switching losses. This innovative approach to MOSFET design achieves an impressive 260mΩ RDS(on) at 19.5A Id while maintaining fast switching characteristics. The result? Enhanced efficiency in power conversion systems where thermal management and energy savings are critical.
Engineers working on switched-mode power supplies (SMPS), motor drives, or renewable energy systems will appreciate the device's ability to handle extreme conditions. With a maximum drain-source voltage of 800V and continuous drain current of 19.5A at 25°C, this transistor provides ample headroom for high-voltage applications while maintaining excellent thermal stability through its 40W (Tc) power dissipation rating.
| Parameter | Value |
|---|---|
| Max Voltage | 800V |
| Continuous Current | 19.5A |
| RDS(on) | 260mΩ |
| Gate Charge | 40nC |
Design Advantages and Practical Implementation
The TO-220FP package offers more than just mechanical robustness - its optimized thermal resistance (RthJC: 1.25°C/W) enables efficient heat transfer in through-hole mounting configurations. This makes the STF25N80K5 particularly suitable for industrial equipment where vibration resistance and long-term reliability are paramount.
Key features that simplify circuit design include:
- ±30V gate voltage rating providing robustness against transient conditions
- 1600pF input capacitance (at 100V VDS) enabling fast switching transitions
- 5V gate threshold voltage ensuring compatibility with standard logic drivers
The device's 100µA gate threshold current specification allows for precise control in both analog and digital switching applications, making it versatile for various power topologies including flyback converters, active clamps, and high-side switches.
Reliability and Environmental Performance
Engineered for demanding environments, this MOSFET maintains operation across extreme temperatures (-55°C to 150°C). Its robust construction meets industrial standards for moisture resistance and mechanical durability, ensuring long-term performance in harsh operating conditions. The device's active status in STMicroelectronics' product portfolio guarantees stable supply for ongoing production needs.
Whether you're designing power factor correction circuits, battery management systems, or industrial automation equipment, the STF25N80K5 provides the perfect balance of electrical performance, thermal management, and packaging convenience. When paired with ST's extensive ecosystem of power management ICs and development tools, it forms a cornerstone for next-generation power solutions that prioritize efficiency, reliability, and cost-effectiveness.
Tags: N-Channel MOSFET, Power Electronics, High Voltage Transistor, TO-220FP Package, Industrial Power Management