BUK9M4R3-40HX N-channel 40 V, 4.3 mΩ logic level MOSFET in LFPAK33 package. Automotive qualified to AEC-Q101 at 175°C.
Mfr Part #:

BUK9M4R3-40HX

Available from 1 distributors
Mfr Name: Nexperia USA Inc.
Nexperia USA Inc.
N-channel 40 V, 4.3 mΩ logic level MOSFET in LFPAK33 package. Automotive qualified to AEC-Q101 at 175°C.
✓ Total Stock: 1,500 pcs
$ Price Range: $0.41 - $1.62

BUK9M4R3-40HX Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,500 pcs
1500 pcs On Request 1 On Request On Request On Request On Request On Request

BUK9M4R3-40HX Specifications Quick View

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

BUK9M4R3-40HX Description

Short technical summary and product information.

Automotive qualified logic level N-channel MOSFET in an LFPAK33 package using Trench 9 TrenchMOS technology. It features a drain-source voltage of 40 V, continuous drain current of 95 A at 25°C, and low on-state resistance of 4.3 mΩ maximum at 10 V. The device is designed for 12 V automotive systems, powertrain, chassis, body, infotainment, DC-DC systems, and LED lighting. It is surface mountable in the LFPAK33 package (SOT-1210) with gull wing leads for high manufacturability and AOI. The MOSFET is fully automotive qualified to AEC-Q101 at 175°C and is repetitive avalanche rated. Key dynamic characteristics include a gate charge of 31 nC and gate-drain charge of 3.3 nC typical.

BUK9M4R3-40HX Quick Information

Product Type: MOSFET
Series: BUK9
Canonical Name: BUK9M4R3-40HX
Subcategory: N-Channel MOSFET

BUK9M4R3-40HX Compliance

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

BUK9M4R3-40HX Estimated Pricing

Qty Low High
1+ $1.62 $1.62
10+ $1.03 $1.03
100+ $0.68 $0.68
500+ $0.54 $0.54
1,000+ $0.46 $0.46
1,500+ $0.43 $0.43
3,000+ $0.41 $0.41

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

BUK9M4R3-40HX Features

  • Automotive qualified to AEC-Q101 at 175°C.
  • Low on-state resistance of 4.3 mΩ typical.
  • High continuous drain current of 95 A.
  • Logic level gate drive (10 V).
  • Surface mount LFPAK33 package.

BUK9M4R3-40HX Applications

  • Ideal for 12 V automotive systems.
  • Used in powertrain and chassis control modules.
  • Suitable for DC-DC converters.
  • Designed for LED lighting applications.

BUK9M4R3-40HX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the BUK9M4R3-40HX?

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

What package is the BUK9M4R3-40HX available in?

It is available in a surface-mount LFPAK33 package (SOT-1210, 8-LFPAK33).

What is the operating temperature range?

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

Is the BUK9M4R3-40HX RoHS compliant?

It is listed as RoHS3 compliant, but this status is unverified. The AEC-Q101 qualification is verified from the datasheet.

What is the continuous drain current rating?

The maximum continuous drain current is 95 A at 25°C (VGS = 10 V, Tmb = 25°C) and 69 A at 100°C.

What is the on-state resistance (Rds on)?

The typical on-state resistance is 3.4 mΩ, with a maximum of 4.3 mΩ at VGS = 10 V, ID = 25 A, Tj = 25°C.

Is this MOSFET automotive qualified?

Yes, it is fully automotive qualified to AEC-Q101 at 175°C, verified from the datasheet.

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