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N-channel 40 V, 4.3 mΩ logic level MOSFET in LFPAK33

Automotive qualified logic level N-channel MOSFET in an LFPAK33 package using Trench 9 TrenchMOS technology. This product has been designed and qualified to AEC-Q101 for use in high performance automotive applications.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BUK9M4R3-40H BUK9M4R3-40HX 934660792115 SOT1210 Order product

Features and benefits

  • Fully automotive qualified to AEC-Q101 at 175 °C
  • Trench 9 superjunction technology:
    • Low power losses, high power density
  • LFPAK copper clip package technology:
    • High robustness and reliability
    • Gull wing leads for high manufacturability and AOI
  • Repetitive avalanche rated


  • 12 V automotive systems
  • Powertrain, chassis, body and infotainment applications
  • Medium/Low power motor drive
  • DC-DC systems
  • LED lighting


Type numberPackage versionPackage nameProduct statusChannel typeNumber of transistorsVDS [max] (V)RDSon [max] @ VGS = 10 V (mΩ)RDSon [max] @ VGS = 4.5 V (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 qualifiedCiss [typ] (pF)Coss [typ] (pF)Date


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9346 607 92115 )
SOT1210Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
BUK9M4R3-40HN-channel 40 V, 4.3 mOhm logic level MOSFET in LFPAK33Data sheet2020-05-12
Nexperia_Document_Leaflet_LFPAK33_12022020LFPAK33 shrinking the power footprintLeaflet2020-03-25
Nexperia_Document_Leaflet_LFPAK33_12022020_CHLFPAK33 leafletLeaflet2020-03-25
SPICE_BUK9M4R3_40HBUK9M4R3-40H SPICE modelSPICE model2020-03-31
TN00008Power MOSFET frequently asked questions and answersTechnical note2020-06-24
BUK9M4R3-40H_CauerBUK9M4R3-40H Cauer thermal modelThermal model2020-05-12


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.


File nameTitleTypeDate
SPICE_BUK9M4R3_40HBUK9M4R3-40H SPICE modelSPICE model2020-03-31
BUK9M4R3-40H_CauerBUK9M4R3-40H Cauer thermal modelThermal model2020-05-12

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
BUK9M4R3-40HBUK9M4R3-40HX934660792115Reel 7” Q1/T1 or Q2/T3Order product


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