Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

BUK9K49-80L

Dual N-channel 80 V, 49 mOhm logic level MOSFET in LFPAK56D

Dual N-channel logic level MOSFET in an LFPAK56D (Dual Power-SO8) package. This product has been designed and qualified to AEC-Q101 standard for use in high performance automotive applications.

Features and benefits

  • Dual MOSFET – two silicon dies in one LFPAK56D package for significant space saving

  • Trench12 MOSFET technology

  • Efficient switching with soft body-diode recovery

  • Automotive qualified to AEC-Q101 at 175 °C

  • Side-wettable flanks for robust solder joints and automatic optical inspection

Applications

  • 12 V, 24 V and 48 V automotive systems

  • Motor, lighting, and solenoid control

  • Transmission control

  • LED lighting

  • Circuit protection

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 = 10 V (nC) Ptot [max] (W) Qr [typ] (nC) VGSth [typ] (V) Automotive qualified Ciss [typ] (pF) Coss [typ] (pF) Release date
BUK9K49-80L SOT1205 LFPAK56D; Dual LFPAK Production N 2 80 48.5 73 175 17 1.6 12 32 7.5 1.7 Y 734 193 2024-08-20

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BUK9K49-80L BUK9K49-80LX
(934667691115)		 Active 94980L SOT1205
LFPAK56D; Dual LFPAK
(SOT1205) 		SOT1205 REFLOW_BG-BD-1
WAVE_BG-BD-1
SOT1205_115

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
BUK9K49-80L BUK9K49-80LX BUK9K49-80L rohs rhf
Quality and reliability disclaimer

Documentation (25)

File name Title Type Date
BUK9K49-80L Dual N-channel 80 V, 49 mOhm logic level MOSFET in LFPAK56D Data sheet 2024-09-03
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
AN11243 Failure signature of Electrical Overstress on Power MOSFETs Application note 2017-12-21
AN50001 Reverse battery protection in automotive applications Application note 2021-01-12
AN50002 Automotive LED side light SEPIC DC-to-DC converter design example Application note 2021-05-10
AN50003 Driving solenoids in automotive applications Application note 2023-11-03
AN50004 Using power MOSFETs in DC motor control applications Application note 2021-03-02
AN50005 Paralleling power MOSFETs in high power applications Application note 2021-09-13
AN50009 Power MOSFET applications in automotive BLDC and PMSM drives Application note 2022-07-05
AN50014 Understanding the MOSFET peak drain current rating Application note 2022-03-28
AN50020 MOSFETs in Power Switch applications Application note 2024-05-27
AN90001 Designing in MOSFETs for safe and reliable gate-drive operation Application note 2024-10-28
AN90003 LFPAK MOSFET thermal design guide Application note 2023-08-22
AN90016 Maximum continuous currents in NEXPERIA LFPAK power MOSFETs Application note 2020-09-03
AN90019 LFPAK MOSFET thermal resistance - simulation, test and optimization of PCB layout Application note 2020-07-20
SOT1205 3D model for products with SOT1205 package Design support 2017-06-30
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
LFPAK56D_SOT1205_mk plastic, single ended surface mounted package (LFPAK56D); 8 leads; 1.27 mm pitch; 4.7 mm x 5.3 mm x 1.05 mm body Marcom graphics 2017-01-28
BUK9K49-80L_LTspice_V1 BUK9K49-80L Precision ElectroThermal (PET) LTspice model PET SPICE model 2025-01-17
SOT1205 plastic, single ended surface mounted package (LFPAK56D); 8 leads Package information 2022-03-11
SOT1205_115 LFPAK56D; Reel pack for SMD, 7''; Q1/T1 product orientation Packing information 2021-01-11
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
BUK9K49-80L_Zth_Cauer BUK9K49-80L Cauer model Thermal model 2024-12-17
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

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
BUK9K49-80L_LTspice_V1 BUK9K49-80L Precision ElectroThermal (PET) LTspice model PET SPICE model 2025-01-17
BUK9K49-80L_Zth_Cauer BUK9K49-80L Cauer model Thermal model 2024-12-17
SOT1205 3D model for products with SOT1205 package Design support 2017-06-30

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
BUK9K49-80L BUK9K49-80LX 934667691115 Active SOT1205_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
BUK9K49-80L BUK9K49-80LX 934667691115 SOT1205 Order product