STF20N65M5 STMicroelectronics MOSFET (N-Channel) (Transistor Outline, Vertical) In Stock
The STF20N65M5 is an N-Channel 650V MDmesh M5 Power MOSFET from STMicroelectronics with 18A drain current and 0.160Ω typical on-resistance. It is housed in a TO-220FP vertical package optimized for efficient thermal management in power conversion designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STF20N65M5 Datasheet PDF
- Category
- MOSFET (N-Channel)
- Price
- From $1.1114(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 650V breakdown voltage enabling use in high-voltage power factor correction and flyback converter designs
- Ultra-low 0.160Ω typical on-resistance (RDS(on)) minimizing conduction losses in switching power supplies
- MDmesh M5 superjunction technology delivering superior figure of merit for high-frequency operation
- TO-220FP isolated package with vertical mounting for simplified thermal management without additional insulation
Applications
The STF20N65M5 is ideal for switch-mode power supplies, power factor correction circuits, and high-voltage DC-DC converters operating from mains rectified voltages up to 650V. Its MDmesh M5 superjunction technology and low 0.160Ω on-resistance make it well suited for server power supplies, solar inverters, and LED lighting drivers requiring high efficiency. The device also performs well in half-bridge and full-bridge topologies for industrial and consumer power conversion.
Specifications
| Factory Lead Time | 14Weeks |
| YTEOL | 5 |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the voltage rating of the STF20N65M5?
The STF20N65M5 is rated for 650V drain-to-source voltage, making it suitable for offline power supplies and high-voltage switching applications powered from rectified AC mains.
What is the on-resistance of the STF20N65M5?
The STF20N65M5 has a typical RDS(on) of 0.160Ω, which minimizes conduction losses and improves efficiency in applications such as power factor correction and switch-mode power supplies.
What package does the STF20N65M5 come in?
The STF20N65M5 is available in a TO-220FP vertical isolated package, which allows direct mounting to heatsinks without additional insulation, simplifying thermal management in power designs.
What are typical applications for the STF20N65M5?
Typical applications include power factor correction circuits, flyback converters, LLC resonant converters, server power supplies, solar micro-inverters, and LED lighting ballasts that require a high-voltage 650V N-Channel MOSFET with low on-resistance.
Related Guides
DP83848 10/100 Mbps Ethernet PHY Transceiver: How to Choose the Right Variant
A complete selection guide for the DP83848 family: compare temperature grades, packages, JTAG support, and interface options across all five variants.
Jun 2, 2026
LM5156 Wide-VIN Boost/SEPIC/Flyback Controller: How to Choose the Right Variant
A concise selection guide for the LM5156 and LM51561 family: how to choose between automotive vs industrial grade, spread-spectrum vs fixed-frequency, and WSON-8 vs HTSSOP-14 package.
Jun 2, 2026
24LC01B I2C EEPROM Design Guide: Pinout, Write Timing, and Package Selection
Complete application note for the Microchip 24LC01B 1 Kbit I2C EEPROM: address wiring, pull-up sizing, acknowledge polling, page-write alignment, and package selection.
Jun 1, 2026
AD8531ARTZ-REEL7 Application Note: High-Current Op-Amp Design Guide
A complete design guide for the AD8531ARTZ-REEL7 250 mA rail-to-rail op-amp: decoupling, thermal budgeting, capacitive load stability, and PCB layout best practices.
Jun 1, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.4000 | $2.40 |
| 10+ | $1.8000 | $18.00 |
| 35+ | $1.4880 | $52.08 |
| 39+ | $1.2000 | $46.80 |
| 4000+ | $1.1320 | $4527.92 |
| 8000+ | $1.1114 | $8891.52 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”