STD40NF3LL STMicroelectronics MOSFET (N-Channel) (Other) In Stock
STMicroelectronics STD40NF3LL is an N-channel 30 V, 40 A STripFET H7 Power MOSFET with 2.8 mΩ typical RDS(on) and integrated Schottky diode in a DPAK package. Logic-level gate drive and 850 mJ avalanche energy rating ensure robust motor control performance. Available from global distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- STD40NF3LL Datasheet PDF
- Category
- MOSFET (N-Channel)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 2.8 mΩ typical RDS(on) at 30 V for minimal conduction losses in high-current switching applications
- Integrated monolithic Schottky diode eliminating external body-diode recovery issues in synchronous rectification
- Logic-level compatible gate drive with 850 mJ avalanche energy rating for robust operation in motor control designs
Applications
The STD40NF3LL is optimized for synchronous DC-DC converters, motor drive H-bridges, and battery management systems operating at 30 V with load currents up to 40 A. Its integrated Schottky diode enables efficient synchronous rectification without external components, reducing switching losses in high-frequency converters above 500 kHz. Automotive accessories, industrial motor controllers, and server power supplies benefit from the combination of low RDS(on) and logic-level gate compatibility.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1980-01-04 |
| YTEOL | 3 |
| Additional Feature | LOGIC LEVEL COMPATIBLE |
| Avalanche Energy Rating (Eas) | 850mJ |
| Case Connection | DRAIN |
| Configuration | SINGLE WITH BUILT-IN DIODE |
| DS Breakdown Voltage-Min | 30V |
| Drain Current-Max (ID) | 40A |
| Drain-source On Resistance-Max | 0.0115Ω |
| FET Technology | METAL-OXIDE SEMICONDUCTOR |
| Feedback Cap-Max (Crss) | 130pF |
| JEDEC-95 Code | TO-252 |
| JESD-30 Code | R-PSSO-G2 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Operating Mode | ENHANCEMENT MODE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Polarity/Channel Type | N-CHANNEL |
| Power Dissipation-Max (Abs) | 80W |
| Pulsed Drain Current-Max (IDM) | 160A |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Position | SINGLE |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STD40NF3LL:
Power Field-Effect Transistor, 40A I(D), 30V, 0.011ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-252AA
Frequently Asked Questions
What are the key electrical ratings of the STD40NF3LL for DC-DC converter designs?
The STD40NF3LL is rated for 30 V drain-source breakdown, 40 A maximum drain current, and 2.8 mΩ typical RDS(on), enabling highly efficient synchronous rectification in DC-DC converters. Its logic-level gate threshold allows direct drive from 3.3 V or 5 V PWM controllers without a gate driver level shifter.
How does the integrated Schottky diode in STD40NF3LL benefit synchronous rectifier circuits?
The monolithic Schottky diode in the STD40NF3LL clamps the body diode's forward voltage to approximately 0.5 V during dead time, compared to the 0.8-1.0 V of a standard body diode. This reduces dead-time conduction loss in synchronous buck converters switching at frequencies from 100 kHz to 1 MHz, improving overall efficiency by 1-2% in 30 V, 40 A converter stages.
Is the STD40NF3LL suitable for motor drive applications with inductive load switching?
Yes, the STD40NF3LL is well suited for motor drives. Its 850 mJ avalanche energy rating (Eas) protects against inductive voltage spikes during high-side switch turn-off. The DPAK package provides adequate thermal dissipation up to 40 A continuous drain current when mounted on a PCB copper heat spreader, covering most 30 V brushed and BLDC motor control requirements.
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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.
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