STB31N65M5 STMicroelectronics MOSFET (N-Channel) (Other) In Stock
STMicroelectronics STB31N65M5 is an N-channel MDmesh M5 Power MOSFET rated at 650V and 22A with a maximum power dissipation of 150W. It features advanced MDmesh M5 superjunction technology for excellent switching performance and high efficiency in power conversion. Available in D2PAK surface-mount package, in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STB31N65M5 Datasheet PDF
- Category
- MOSFET (N-Channel)
- Price
- From $1.9869(MOQ 250)
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- MDmesh M5 superjunction technology delivering best-in-class figure of merit (RDS(on) x Qg) for highly efficient high-frequency power conversion
- High 22A continuous drain current with 150W power dissipation capability in a D2PAK package suitable for demanding power applications
- 650V voltage rating combined with low on-resistance enables high-efficiency designs in offline power supplies and industrial motor drives
Applications
The STB31N65M5 is designed for high-power conversion applications including server power supplies, telecom rectifiers, and industrial switched-mode power supplies operating at 650V. Its MDmesh M5 superjunction structure provides reduced gate charge and on-resistance, enabling high-frequency operation with minimal switching and conduction losses. The device is also used in solar inverters, UPS systems, and motor-drive circuits requiring robust high-voltage switching.
Specifications
| Factory Lead Time | 14Weeks |
| YTEOL | 5 |
| Configuration | SINGLE |
| Drain Current-Max (ID) | 22A |
| FET Technology | METAL-OXIDE SEMICONDUCTOR |
| Number of Elements | 1 |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Polarity/Channel Type | N-CHANNEL |
| Power Dissipation-Max (Abs) | 150W |
| Surface Mount | YES |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Other |
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 are the key electrical ratings of the STB31N65M5?
The STB31N65M5 is rated for a maximum drain-source voltage of 650V and a continuous drain current of 22A with a maximum power dissipation of 150W. These specifications make it suitable for high-power offline and industrial power conversion designs where high voltage and moderate current capability are required.
What technology does the STB31N65M5 use and what is its main advantage?
The STB31N65M5 uses STMicroelectronics MDmesh M5 superjunction technology, which significantly reduces the product of on-resistance and gate charge (RDS(on) x Qg figure of merit). This improves both conduction and switching efficiency, allowing power supply designers to achieve higher conversion efficiency and reduce heatsink requirements.
What package does the STB31N65M5 come in?
The STB31N65M5 is housed in a D2PAK (TO-263) surface-mount package. The D2PAK provides excellent thermal performance with a large exposed tab for heat dissipation directly through the PCB, making it suitable for high-power applications without requiring a through-hole component or separate heatsink clamp.
What are typical applications for the STB31N65M5?
Typical applications include offline flyback and LLC resonant switch-mode power supplies, server and telecom power converters, industrial motor drives, solar microinverters, and uninterruptible power supply (UPS) systems. The 650V rating covers full mains rectified voltage, and the 22A current rating supports power levels up to several hundred watts.
Is the STB31N65M5 surface-mount compatible and what is its lead time?
Yes, the STB31N65M5 is a surface-mount device in the D2PAK package, enabling automated PCB assembly. The standard factory lead time is 14 weeks, so it is advisable to plan procurement in advance or source from distribution stock to avoid project delays in high-volume production.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $4.8600 | $1215.00 |
| 500+ | $2.4200 | $1210.00 |
| 1000+ | $2.2100 | $2210.00 |
| 2000+ | $2.0900 | $4180.00 |
| 4000+ | $1.9972 | $7988.92 |
| 8000+ | $1.9869 | $15895.52 |
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