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Automotive qualified products (AEC-Q100/Q101)

BUK9J0R9-40H

N-channel 40 V, 0.9 mΩ logic 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) RDSon [max] @ VGS = 4.5 V; @25 C (mΩ) Tj [max] (°C) ID [max] (A) QGD [typ] (nC) QG(tot) [typ] @ VGS = 4.5 V (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
BUK9J0R9-40H SOT1023 LFPAK56E; Power-SO8 Production N 1 40 0.94 1.2 175 220 12.7 54.2 120 500 52.6 1.66 Y 8977 1549 2018-05-07

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BUK9J0R9-40H BUK9J0R9-40HX
(934660369115)		 Active 90H940E SOT1023
LFPAK56E; Power-SO8
(SOT1023) 		SOT1023 REFLOW_BG-BD-1
SOT1023_115

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
BUK9J0R9-40H BUK9J0R9-40HX BUK9J0R9-40H rohs rhf
Quality and reliability disclaimer

Series

Documentation (15)

File name Title Type Date
BUK9J0R9-40H N-channel 40 V, 0.9 mΩ logic level MOSFET in LFPAK56E Data sheet 2024-01-10
AN90032 Low temperature soldering, application study Application note 2022-02-22
AN90063 Questions about package outline drawings Application note 2025-06-13
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
BUK9xxxx-40H_LTspice_V3 BUK9xxxx-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
BUK9J0R9-40H BUK9J0R9-40H SPICE model SPICE model 2018-05-14
TN00008 Power MOSFET frequently asked questions and answers Technical note 2024-08-09
BUK9J0R9-40H_RCthermal BUK9J0R9-40H RC thermal Thermal design 2018-05-15
BUK9J0R9-40H_RCth BUK9J0R9-40H thermal model Thermal model 2018-05-14
BUK9J0R9-40H_Zth BUK9J0R9-40H RC thermal model Thermal model 2018-05-14

Support

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Longevity

The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.


Models

File name Title Type Date
BUK9xxxx-40H_LTspice_V3 BUK9xxxx-40H Precision ElectroThermal (PET) LTspice model PET SPICE model 2022-09-26
BUK9J0R9-40H BUK9J0R9-40H SPICE model SPICE model 2018-05-14
BUK9J0R9-40H_RCthermal BUK9J0R9-40H RC thermal Thermal design 2018-05-15
BUK9J0R9-40H_RCth BUK9J0R9-40H thermal model Thermal model 2018-05-14
BUK9J0R9-40H_Zth BUK9J0R9-40H RC thermal model Thermal model 2018-05-14
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
BUK9J0R9-40H BUK9J0R9-40HX 934660369115 Active SOT1023_115 1,500

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
BUK9J0R9-40H BUK9J0R9-40HX 934660369115 SOT1023 Order product