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Automotive qualified products (AEC-Q100/Q101)

BUK7J1R4-40H

N-channel 40 V, 1.4 mΩ standard level MOSFET in LFPAK56E

Automotive qualified N-channel MOSFET using the latest Trench 9 low ohmic superjunction technology, housed in an enhanced LFPAK56E package. This product has been fully designed and qualified to meet AEC-Q101 requirements delivering high performance and endurance.

Features and benefits

  • Fully automotive qualified to AEC-Q101:

    • 175 °C rating suitable for thermally demanding environments

  • Trench 9 Superjunction technology:

    • Reduced cell pitch enables enhanced power density and efficiency with lower RDSon in same footprint

    • Improved SOA and avalanche capability compared to standard TrenchMOS

    • Tight VGS(th) limits enable easy paralleling of MOSFETs

  • LFPAK Gull Wing leads:

    • High Board Level Reliability absorbing mechanical stress during thermal cycling, unlike traditional QFN packages

    • Visual (AOI) soldering inspection, no need for expensive x-ray equipment

    • Easy solder wetting for good mechanical solder joint

  • LFPAK copper clip technology:

    • Improved reliability, with reduced Rth and RDSon

    • Increases maximum current capability and improved current spreading

Applications

  • 12 V automotive systems

  • Motors, lamps and solenoid control

  • Start-Stop micro-hybrid applications

  • Transmission control

  • Ultra high performance power switching

Parametrics

Type number Package version Package name Product status Channel type Nr of transistors VDS [max] (V) RDSon [max] @ VGS = 10 V (mΩ) Tj [max] (°C) ID [max] (A) QGD [typ] (nC) QG(tot) [typ] @ VGS = 10 V (nC) Ptot [max] (W) Qr [typ] (nC) VGSth [typ] (V) Automotive qualified Ciss [typ] (pF) Coss [typ] (pF) Release date
BUK7J1R4-40H SOT1023 LFPAK56E; Power-SO8 Production N 1 40 1.4 175 190 13 73 395 39 3 Y 5436 1314 2017-07-04

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BUK7J1R4-40H BUK7J1R4-40HX
(934660082115)		 Active 71H440E SOT1023
LFPAK56E; Power-SO8
(SOT1023) 		SOT1023 REFLOW_BG-BD-1
SOT1023_115

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
BUK7J1R4-40H BUK7J1R4-40HX BUK7J1R4-40H rohs rhf
Quality and reliability disclaimer

Series

Documentation (20)

File name Title Type Date
BUK7J1R4-40H N-channel 40 V, 1.4 mΩ standard level MOSFET in LFPAK56E Data sheet 2023-08-08
AN10273 Power MOSFET single-shot and repetitive avalanche ruggedness rating Application note 2022-06-20
AN11156 Using Power MOSFET Zth Curves Application note 2021-01-04
AN11158 Understanding power MOSFET data sheet parameters Application note 2020-07-06
AN11160 Designing RC Snubbers Application note 2024-10-21
AN11243 Failure signature of Electrical Overstress on Power MOSFETs Application note 2017-12-21
AN11261 RC Thermal Models Application note 2021-03-18
AN11599 Using power MOSFETs in parallel Application note 2016-07-13
AN90001 Designing in MOSFETs for safe and reliable gate-drive operation Application note 2024-10-28
AN90032 Low temperature soldering, application study Application note 2022-02-22
SOT1023 3D model for products with SOT1023 package Design support 2017-06-29
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
LFPAK56_SOT1023_mk plastic, single-ended surface-mounted package (LFPAK56); 4 leads; 1.27 mm pitch; 4.58 mm x 5.13 mm x 1.03 mm body Marcom graphics 2017-01-28
BUK7xxxx-40H_LTspice_V3 BUK7xxxx-40H Precision ElectroThermal (PET) LTspice model PET SPICE model 2022-09-26
SOT1023 plastic, single-ended surface-mounted package (LFPAK56E); 4 leads; 1.27 mm pitch Package information 2024-08-28
SOT1023_115 LFPAK56; Reel pack for SMD, 7"; Q1/T1 product orientation Packing information 2022-06-07
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
BUK7J1R4-40H BUK7J1R4-40H SPICE model 2017-08-11
TN00008 Power MOSFET frequently asked questions and answers Technical note 2024-08-09
BUK7J1R4-40H_RCthermal BUK7J1R4-40H_RCthermal Thermal design 2017-08-11

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
BUK7xxxx-40H_LTspice_V3 BUK7xxxx-40H Precision ElectroThermal (PET) LTspice model PET SPICE model 2022-09-26
BUK7J1R4-40H BUK7J1R4-40H SPICE model 2017-08-11
BUK7J1R4-40H_RCthermal BUK7J1R4-40H_RCthermal Thermal design 2017-08-11
SOT1023 3D model for products with SOT1023 package Design support 2017-06-29

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
BUK7J1R4-40H BUK7J1R4-40HX 934660082115 Active SOT1023_115 1,500 Order product

Sample

As a Nexperia customer you can order samples via our sales organization.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BUK7J1R4-40H BUK7J1R4-40HX 934660082115 SOT1023 Order product