Bipolar transistors

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ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

BUK9K25-40RA

Dual N-channel 40 V, 29 mOhm logic level MOSFET in LFPAK56D using Repetitive Avalanche technology

Dual, logic level N-channel MOSFET in an LFPAK56D package, using Application Specific (ASFET) repetitive avalanche silicon technology. This product has been designed and qualified to AEC-Q101 for use in repetitive avalanche applications.

Features and benefits

  • Fully automotive qualified to AEC-Q101 at 175 °C

  • Repetitive Avalanche rated to 30 °C T j rise:
    • Tested to 1 Bn avalanche events
  • LFPAK copper clip package technology:
    • High robustness and reliability
    • Gull wing leads for high manufacturability and AOI

Applications

  • 12 V, 24 V and 48 V automotive systems

  • Repetitive avalanche topologies

  • Engine control

  • Transmission control

  • Actuator and auxiliary loads

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 = 5 V (mΩ) Tj [max] (°C) ID [max] (A) QGD [typ] (nC) Ptot [max] (W) Qr [typ] (nC) VGSth [typ] (V) Automotive qualified Ciss [typ] (pF) Coss [typ] (pF) Release date
BUK9K25-40RA SOT1205 LFPAK56D; Dual LFPAK Production N 2 40 24 29 175 18.2 2.4 32 7.6 1.7 Y 528 95 2020-11-10

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BUK9K25-40RA BUK9K25-40RAX
(934662535115)		 Active 92540RA 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
BUK9K25-40RA BUK9K25-40RAX BUK9K25-40RA rohs rhf
Quality and reliability disclaimer

Series

Documentation (19)

File name Title Type Date
BUK9K25-40RA Dual N-channel 40 V, 29 mOhm logic level MOSFET in LFPAK56D using Repetitive Avalanche technology Data sheet 2020-12-02
AN10273 Power MOSFET single-shot and repetitive avalanche ruggedness rating Application note 2022-06-20
AN10874_ZH LFPAK MOSFET thermal design guide, Chinese version Application note 2020-04-30
AN11113_ZH LFPAK MOSFET thermal design guide - Part 2 Application note 2020-04-30
AN11261 RC Thermal Models Application note 2021-03-18
AN11599 Using power MOSFETs in parallel Application note 2016-07-13
AN50003 Driving solenoids in automotive applications Application note 2023-11-03
AN90003 LFPAK MOSFET thermal design guide Application note 2023-08-22
SOT1205 3D model for products with SOT1205 package Design support 2017-06-30
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
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
BUK9K25-40RA BUK9K25-40RA SPICE model SPICE model 2020-12-04
TN00008 Power MOSFET frequently asked questions and answers Technical note 2024-08-09
BUK9K25-40RA_Zth BUK9K25-40RA thermal model Thermal model 2020-12-04
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
SOT1205 3D model for products with SOT1205 package Design support 2017-06-30
BUK9K25-40RA BUK9K25-40RA SPICE model SPICE model 2020-12-04
BUK9K25-40RA_Zth BUK9K25-40RA thermal model Thermal model 2020-12-04
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
BUK9K25-40RA BUK9K25-40RAX 934662535115 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
BUK9K25-40RA BUK9K25-40RAX 934662535115 SOT1205 Order product