STD7NK40ZT4 STMicroelectronics MOSFET (N-Channel) (Other) In Stock
STMicroelectronics STD7NK40ZT4 is an N-channel MOSFET with 400V breakdown voltage and 5.4A drain current in a TO-252AA package. It features a maximum drain-source on-resistance of 1 Ohm and includes a built-in body diode for robust switching. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STD7NK40ZT4 Datasheet PDF
- Category
- MOSFET (N-Channel)
- Price
- From $0.5200(MOQ 100)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STD7NK40ZT4?
- 400V minimum drain-source breakdown voltage for high-voltage power conversion applications
- Low 1 Ohm maximum drain-source on-resistance for efficient switching and reduced conduction losses
- Built-in body diode enables freewheeling in inductive switching circuits without external components
- TO-252AA (DPAK) surface-mount package provides excellent thermal performance in compact designs
What is STD7NK40ZT4 used for?
The STD7NK40ZT4 is well-suited for switching power supplies, motor drivers, and DC-DC converter applications requiring high-voltage N-channel MOSFETs. Its 400V blocking capability and built-in body diode make it ideal for flyback converter primary switches and PFC boost stages. The TO-252AA surface-mount package enables efficient heat dissipation in industrial power management and home appliance control circuits.
What are the specifications of STD7NK40ZT4?
| Factory Lead Time | 13Weeks |
| YTEOL | 6.25 |
| Avalanche Energy Rating (Eas) | 130mJ |
| Configuration | SINGLE WITH BUILT-IN DIODE |
| DS Breakdown Voltage-Min | 400V |
| Drain Current-Max (ID) | 5.4A |
| Drain-source On Resistance-Max | 1Ω |
| FET Technology | METAL-OXIDE SEMICONDUCTOR |
| JEDEC-95 Code | TO-252AA |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | N-CHANNEL |
| Power Dissipation-Max (Abs) | 70W |
| Pulsed Drain Current-Max (IDM) | 21.6A |
| 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) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| Country of Origin | Mainland China |
Where can I find the STD7NK40ZT4 datasheet?
STD7NK40ZT4 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STD7NK40ZT4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum drain-source breakdown voltage of the STD7NK40ZT4?
The STD7NK40ZT4 has a minimum drain-source breakdown voltage of 400V, making it suitable for high-voltage power conversion applications such as offline switching power supplies, motor drives, and PFC circuits operating from AC mains.
What is the on-resistance of the STD7NK40ZT4?
The STD7NK40ZT4 has a maximum drain-source on-resistance of 1 Ohm, ensuring manageable conduction losses at its rated drain current of 5.4A. This parameter is important for power efficiency calculations in switching power supply designs.
What package does the STD7NK40ZT4 use?
The STD7NK40ZT4 is available in the TO-252AA surface-mount package (also known as DPAK or JEDEC-95 code TO-252AA), which provides excellent thermal dissipation properties for power semiconductor applications while maintaining a compact PCB footprint.
Does the STD7NK40ZT4 have a built-in body diode?
Yes, the STD7NK40ZT4 features a built-in body diode (single configuration with built-in diode), with an avalanche energy rating of 130 mJ. This allows it to handle freewheeling currents in inductive switching circuits without requiring an external parallel diode.
What are typical applications for the STD7NK40ZT4?
Typical applications include flyback and forward switching power supplies, motor speed controllers, DC-DC converters, power factor correction circuits, and electronic ballasts. The 400V rating and 5.4A drain current make it suitable for medium-power industrial and consumer electronics designs.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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 |
|---|---|---|
| 100+ | $1.0336 | $103.36 |
| 500+ | $0.8247 | $412.35 |
| 1000+ | $0.7575 | $757.54 |
| 2500+ | $0.6040 | $1510.00 |
| 5000+ | $0.5650 | $2825.00 |
| 10000+ | $0.5200 | $5200.00 |
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.”
You May Also Like
AO3416
Alpha & Omega Semiconductors
MOSFET (N-Channel)
2SK3568
Toshiba
MOSFET (N-Channel)
BSS139 H6327
Infineon
MOSFET (N-Channel)
TPWR8004PL,L1Q
Toshiba
MOSFET (N-Channel)
TPW1R005PL,L1Q
Toshiba
MOSFET (N-Channel)
ZXMN3B01FTA
Diodes Inc.
MOSFET (N-Channel)
AO3422
Alpha & Omega Semiconductors
MOSFET (N-Channel)
SI4204DY-T1-GE3
Vishay
MOSFET (N-Channel)
IRLML2402TRPBF
Infineon
MOSFET (N-Channel)
IRLML2803TRPBF
Infineon
MOSFET (N-Channel)
IRF7607TRPBF
Infineon
MOSFET (N-Channel)
IPD530N15N3GATMA1
Infineon
MOSFET (N-Channel)
BSZ520N15NS3GATMA1
Infineon
MOSFET (N-Channel)
BSC360N15NS3GATMA1
Infineon
MOSFET (N-Channel)
SQ3426AEEV-T1_GE3
Vishay
MOSFET (N-Channel)
IPI041N12N3 G
Infineon
MOSFET (N-Channel)
PMZB290UNE2
Nexperia
MOSFET (N-Channel)
ZVN4306GVTA
Diodes Inc.
MOSFET (N-Channel)
SIA459EDJ-T1-GE3
Vishay
MOSFET (N-Channel)
NTR3C21NZT1G
ON Semiconductor
MOSFET (N-Channel)
TN2404K-T1-E3
Vishay
MOSFET (N-Channel)
SI2312CDS-T1-GE3
Vishay
MOSFET (N-Channel)
DMN2230UQ-7
Diodes Inc.
MOSFET (N-Channel)
CPH6442-TL-W
ON Semiconductor
MOSFET (N-Channel)