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)

BUK9E1R9-40E

N-channel 40 V, 1.9 mΩ logic level MOSFET in I²PAK

Logic level N-channel MOSFET in a I²PAK package using TrenchMOS technology. This product has been designed and qualified to AEC Q101 standard for use in high performance automotive applications.

This product has been discontinued

Features and benefits

  • AEC Q101 compliant
  • Repetitive avalanche rated
  • Suitable for thermally demanding environments due to 175 °C rating
  • True logic level gate with VGS(th) rating of greater than 0.5 V at 175 °C

Applications

  • 12 V Automotive systems
  • Motors, lamps and solenoid control
  • Power Steering
  • Fan 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 = 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
BUK9E1R9-40E SOT226 I2PAK End of life N 1 40 1.7 1.93 175 120 40.9 349 97 1.7 Y 12300 1530 2013-05-07

Package

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BUK9E1R9-40E BUK9E1R9-40E,127
(934066511127)		 Obsolete BUK9E1R9 40E P**XXYY AZ Batch No SOT226
I2PAK
(SOT226) 		SOT226 Not available

Environmental information

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
BUK9E1R9-40E BUK9E1R9-40E,127 BUK9E1R9-40E rohs rhf
Quality and reliability disclaimer

Series

Documentation (15)

File name Title Type Date
BUK9E1R9-40E N-channel 40 V, 1.9 mΩ logic level MOSFET in I²PAK Data sheet 2013-06-05
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
AN11156 Using Power MOSFET Zth Curves Application note 2021-01-04
AN11158 Understanding power MOSFET data sheet parameters Application note 2020-07-06
AN11158_ZH Understanding power MOSFET data sheet parameters Application note 2021-01-04
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
SOT226 3D model for products with SOT226 package Design support 2017-06-30
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SOT226 plastic, single-ended package (I2PAK); 3 terminals; 2.54 mm pitch; 11 mm x 10 mm x 4.3 mm body Package information 2020-04-21
TN00008 Power MOSFET frequently asked questions and answers Technical note 2024-08-09

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
SOT226 3D model for products with SOT226 package Design support 2017-06-30

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