BUK9K25-40EX The BUK9K25-40EX is a dual N-channel logic level MOSFET rated for 40V drain-source voltage and 18.2A continuous drain current. It is housed in an LFPAK56D surface mount package and qualified to AEC Q101 standard.
Mfr Part #:

BUK9K25-40EX

Available from 2 distributors
Mfr Name: Nexperia USA Inc.
Nexperia USA Inc.
The BUK9K25-40EX is a dual N-channel logic level MOSFET rated for 40V drain-source voltage and 18.2A continuous drain current. It is housed in an LFPAK56D surface mount package and qualified to AEC Q101 standard.
✓ Total Stock: 55,500 pcs
$ Price Range: $0.23 - $1.05

BUK9K25-40EX Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
40,500 pcs
40500 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
15,000 pcs
15000 pcs On Request 1 On Request On Request 25+ On Request On Request

BUK9K25-40EX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Configuration
Current
Drain to Source Voltage (Vdss)
FET Feature
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Junction Temperature
Mounting Type
Operating Temperature
Power
Rds On (Max) @ Id, Vgs
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Vgs(th) (Max) @ Id

BUK9K25-40EX Description

Short technical summary and product information.

The BUK9K25-40EX from Nexperia is a dual N-channel logic level MOSFET designed for high-performance power switching applications. It features a maximum drain-source voltage of 40V and a continuous drain current of 18.2A at 25°C. The device offers a typical on-state resistance of 24 mΩ at VGS = 5V, making it suitable for efficient power management.

 

This MOSFET utilizes TrenchMOS technology and is qualified to the AEC Q101 standard for automotive applications. It is rated for operation at junction temperatures up to 175°C, enabling use in thermally demanding environments. The logic level gate allows direct drive from low-voltage logic circuits.

 

The BUK9K25-40EX is supplied in the LFPAK56D (SOT1205) surface mount package, which provides a compact footprint for space-constrained designs. Typical applications include 12V automotive systems, motor control, lamp and solenoid drivers, and transmission control units.

BUK9K25-40EX Quick Information

Product Type: MOSFET Array
Series: BUK9K25-40E
Canonical Name: BUK9K25-40EX Dual N-channel 40 V, 29 mΩ logic level MOSFET
Subcategory: Dual N-Channel MOSFET Array

BUK9K25-40EX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BUK9K25-40EX Estimated Pricing

Qty Low High
1+ $1.05 $1.05
10+ $0.66 $0.66
100+ $0.43 $0.43
500+ $0.33 $0.33
1,000+ $0.28 $0.28
1,500+ $0.26 $0.26
3,000+ $0.23 $0.23
9,000+ $0.23 $0.23

Estimated market price range - modelled values for guidance only, not live distributor offers.

BUK9K25-40EX Features

  • Dual N-channel logic level MOSFET.
  • Rated for 40V drain-source voltage.
  • Continuous drain current of 18.2A.
  • Low on-resistance of 24 mΩ typical.
  • AEC Q101 qualified for automotive use.

BUK9K25-40EX Applications

  • Ideal for 12V automotive power systems.
  • Used in motor and solenoid control.
  • Suitable for transmission control modules.
  • Designed for high performance power switching.

BUK9K25-40EX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the BUK9K25-40EX?

The maximum drain-source voltage (VDS) is 40V.

What is the continuous drain current rating?

The continuous drain current is 18.2A at VGS = 5V and Tmb = 25°C.

What is the typical on-state resistance?

The typical on-state resistance (RDSon) is 24 mΩ at VGS = 5V and ID = 5A.

What package is the BUK9K25-40EX available in?

It is available in the LFPAK56D (SOT1205) surface mount package.

What is the operating temperature range?

The junction temperature range is -55°C to 175°C.

Is the BUK9K25-40EX qualified for automotive applications?

Yes, it is qualified to the AEC Q101 standard.

What is the gate threshold voltage?

The maximum gate threshold voltage (VGS(th)) is 2.1V at ID = 1mA.

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