STF3N62K3 N-Channel MOSFET 620V 2.7A TO-220FP | STMicroelectronics
- Brand: STMicroelectronics
- Product Code: STF3N62K3
- Availability: In Stock
$0.30
- Ex Tax: $0.30
STF3N62K3 N-Channel MOSFET: High-Performance Power Transistor for Demanding Applications
STMicroelectronics' STF3N62K3 is a cutting-edge N-Channel MOSFET designed for high-voltage power applications requiring exceptional efficiency and reliability. With a 620V rating, 2.7A continuous drain current, and advanced SuperMESH3™ technology, this TO-220FP packaged transistor delivers superior performance in power supplies, motor control systems, and industrial equipment. This comprehensive guide explores the technical specifications, key features, and practical applications of this versatile semiconductor device.
Technical Specifications at a Glance
| Parameter | Value |
|---|---|
| Drain-Source Voltage (Vdss) | 620 V |
| Continuous Drain Current (Id) | 2.7A @ 25°C |
| Rds(on) Max | 2.5Ω @ 10V Vgs |
| Gate Charge (Qg) | 13 nC @ 10V |
| Package Type | TO-220-3 Full Pack |
The STF3N62K3's 620V rating makes it ideal for high-voltage switching applications where safety margins and robustness are critical. Its N-Channel configuration enables efficient low-side switching, while the TO-220FP package ensures excellent thermal management through its through-hole mounting design. This transistor's ±30V gate voltage tolerance provides enhanced protection against voltage spikes, making it suitable for harsh electrical environments.
At the heart of this device lies STMicroelectronics' proprietary SuperMESH3™ technology, which combines optimized cell structure with advanced manufacturing processes to minimize conduction losses. The 2.5Ω maximum Rds(on) at 10V gate drive ensures minimal power dissipation during operation, translating to cooler running temperatures and improved system efficiency. With a gate charge specification of just 13 nC, the STF3N62K3 enables fast switching transitions while maintaining low driver power requirements.
Engineers will appreciate the device's thermal characteristics: rated for 20W power dissipation at case temperature (Tc), this MOSFET can operate reliably in environments up to 150°C junction temperature. The 385 pF input capacitance measurement at 25V Vds ensures predictable high-frequency performance, while the 4.5V maximum gate threshold voltage (Vgs(th)) guarantees consistent turn-on behavior across operating conditions. These specifications make it particularly well-suited for applications in power factor correction circuits, DC-DC converters, and motor drive inverters.
Manufacturers choosing the STF3N62K3 benefit from STMicroelectronics' commitment to quality and reliability. The device's active status in the product lifecycle ensures long-term supply stability, while the standard TO-220FP packaging simplifies PCB layout and assembly processes. Its through-hole mounting configuration provides mechanical robustness in environments subject to vibration or thermal cycling.
Common applications for this versatile transistor include:
- Switch-mode power supplies (SMPS) for industrial and consumer electronics
- Motor control systems in HVAC and automation equipment
- Solar inverters and renewable energy systems
- Uninterruptible power supplies (UPS)
- Lighting ballasts and LED drivers
When designing with the STF3N62K3, engineers should consider its 10V gate drive requirement for optimal performance. While the device can operate at lower gate voltages, maintaining 10V drive ensures minimal Rds(on) and prevents thermal runaway conditions. Proper heatsinking should be implemented when operating near the 2.7A maximum current rating to maintain reliability and longevity.
As part of STMicroelectronics' extensive MOSFET portfolio, the STF3N62K3 offers a compelling combination of voltage capability, current handling, and efficiency. Its robust design and proven performance in industrial applications make it a reliable choice for designers seeking to balance performance with cost-effectiveness. With tube packaging simplifying inventory management and handling, this transistor provides an excellent solution for both high-volume production and prototype development scenarios.
For designers seeking alternatives in different voltage/current ratings, STMicroelectronics offers the STF5N62K3 (5A version) and STF3N65K3 (650V variant) for flexible system design options. However, the STF3N62K3's unique combination of 620V capability and 2.7A current handling makes it particularly well-suited for applications requiring a balance between voltage headroom and conduction efficiency.
In conclusion, the STF3N62K3 represents a proven solution for high-voltage power switching applications. Its superior specifications, robust packaging, and STMicroelectronics' industry-leading quality standards make it an excellent component choice for engineers developing reliable power electronics systems. Whether implementing new designs or optimizing existing platforms, this N-Channel MOSFET offers the performance characteristics needed to meet modern power conversion challenges.
Tags: Power Transistors, MOSFETs, STMicroelectronics Components, High Voltage Transistors, TO-220FP Devices