STW69N65M5
650V MDmesh M5 series power MOSFET with 69A current rating, 55mΩ typical Rds(on), and improved switching performance for high-efficiency applications.
Product Overview
Description
The STW69N65M5 is a high-voltage N-channel power MOSFET utilizing ST's advanced MDmesh M5 super-junction technology, offering improved performance over previous generations.
With 650V voltage rating and low 55mΩ Rds(on), it delivers exceptional efficiency in hard-switching and resonant applications.
The device features excellent dv/dt ruggedness, 100% avalanche tested, and is ideal for switched-mode power supplies, solar inverters, and EV charging systems.
Product Series
Primary Application
Key Features
- MDmesh M5 super-junction technology
- Ultra-low Rds(on) × area figure of merit
- Excellent switching performance
- 100% avalanche tested
- High dv/dt ruggedness
- Operating temperature: -55°C to +150°C
Specifications
| Voltage Rating | 650 V |
|---|---|
| Current Rating | 69 A |
| Rds(on) max | 75 mΩ |
| Rds(on) typ | 55 mΩ |
| Qg | 135 nC |
| Package | TO-247 |
| Temperature Range | N/A |
Applications
Switched-mode power supplies
Industrial application for 650V N-Channel Power MOSFET
Solar inverters
Industrial application for 650V N-Channel Power MOSFET
UPS systems
Industrial application for 650V N-Channel Power MOSFET
Motor drives
Industrial application for 650V N-Channel Power MOSFET
EV charging stations
Industrial application for 650V N-Channel Power MOSFET
FAE Expert Insights
"The STW69N65M5 is the next generation of ST's MDmesh technology. The M5 generation offers noticeable improvements in Rds(on) and switching characteristics compared to M2. In my experience, this device is excellent for high-power applications where every milliohm matters. The 69A current rating makes it suitable for 3-5kW power supplies and inverters. The switching losses are well-controlled despite the higher current rating. I've used this in several server power supply designs with excellent thermal performance. The TO-247 package is standard and easy to work with. For new designs requiring 650V, this is my preferred choice over the older M2 generation."
Next-generation MDmesh M5 with improved efficiency
— Robert Kim, BeiLuo
Frequently Asked Questions
What is the difference between MDmesh M5 and M2?
MDmesh M5 is the 5th generation of ST's super-junction technology, offering improvements over M2: Lower Rds(on) for same die size; Improved switching characteristics with lower Qg; Better body diode performance; Enhanced ruggedness and reliability. The M5 technology enables higher efficiency and power density in power conversion applications.
Use M5 for new designs. M2 remains viable for cost-sensitive applications.
What is the maximum power dissipation?
The STW69N65M5 has maximum power dissipation of 375W at Tc = 25°C, derating to 150W at Tc = 100°C. Actual power handling depends on thermal design. With typical Rds(on) of 55mΩ at 30A, conduction losses are approximately 50W. Proper heatsinking is essential for high-current operation.
Calculate losses and verify thermal design for your application.