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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Nexperia USA Inc. BUK92150-55A,118

Name: BUK92150-55A,118
Brand: Nexperia USA Inc.
SKU: BUK92150-55A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK92150-55A,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: BUK92150-55A,118.pdf

Description:: MOSFET N-CH 55V 11A DPAK

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Product details

Overview

BUK92150-55A from Nexperia is a logic-level N-channel TrenchMOS FET in DPAK (SOT428) package, rated for 55 V V_DS, 11 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature. It delivers R_DS(on) = 120 mΩ at V_GS = 5 V and T_j = 25 °C, and is AEC-Q101 qualified for automotive power switching in 12 V/24 V systems.

For engineers reviewing the BUK92150-55A datasheet, BUK92150-55A pinout, BUK92150-55A application, or BUK92150-55A equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1–2 V), thermal robustness (R_th(j-mb) = 4.1 K/W), avalanche energy rating (16 mJ), and automotive qualification status.

Technical Context

This device uses TrenchMOS technology to achieve low conduction losses and stable R_DS(on) across temperature - 280 mΩ max at 175 °C and V_GS = 5 V. Its gate threshold voltage ranges from 0.5 V (min at T_j = 175 °C) to 2.3 V (max at T_j = −55 °C), enabling reliable turn-on with standard 3.3 V or 5 V logic drivers.

The integrated source-drain diode supports freewheeling in inductive loads, with V_SD = 0.85 V typical at I_S = 15 A and T_j = 25 °C, and t_rr = 24 ns. Dynamic parameters include Q_GD = 2.6 nC and C_iss = 240–338 pF, supporting efficient high-frequency switching up to several hundred kHz in automotive DC-DC and load-switching topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V maximum - supports 24 V automotive systems with ≥2× voltage margin against transients
I_D (continuous)	11 A at T_mb = 25 °C - enables direct replacement of mechanical relays in medium-power loads
R_DS(on)	120 mΩ typ at V_GS = 5 V, T_j = 25 °C - ensures <1.3 W conduction loss at 3.3 A load current
T_j max	175 °C - allows operation in under-hood environments without derating below 100 °C ambient
E_AS	16 mJ non-repetitive avalanche energy - provides single-pulse fault tolerance during inductive load turn-off
R_th(j-mb)	4.1 K/W - enables 36 W total dissipation when mounted on a 25 °C heatsink surface
V_GS(th)	1–2 V typical at 25 °C - guarantees full enhancement with 3.3 V microcontroller GPIOs

Pinout & Package

BUK92150-55A uses the DPAK (SOT428) plastic surface-mount package with exposed mounting base electrically connected to the drain terminal. The package features three leads (one cropped), optimized for PCB thermal relief and high-current routing.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level control input; requires ≤5 V for full enhancement; gate leakage <100 nA at ±10 V
2 (D)	Drain	Main high-side power path; internally bonded to mounting base for low-inductance heat sinking
3 (S)	Source	Power return node; referenced to system ground; supports 11 A continuous source current
Mounting Base (mb)	Drain connection	Exposed copper pad tied directly to drain; must be soldered to PCB copper pour for thermal and electrical performance

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive safety-critical applications including engine control and body electronics
Logic-level gate drive	Operates fully enhanced with 3.3 V or 5 V MCU outputs - eliminates need for gate driver ICs
175 °C junction rating	Enables use in high-temperature zones (e.g., near exhaust, battery modules) without external cooling
Low R_DS(on) drift with temperature	R_DS(on) increases only ~2.3× from 25 °C to 175 °C - maintains predictable power loss in thermal transients
Integrated source-drain diode	Supports bidirectional current in H-bridge or flyback configurations without external diode

Applications

Engine Control Module Load Switching

Automotive HVAC Blower Motor Drive

Use Scenario: Switching fuel pump, injector solenoids, or EGR valve coils in engine control units.

IC Role / Device Role / Timing Role: High-side power switch controlled by 3.3 V MCU PWM output; handles repetitive 10–100 ms pulses.

Use Value: Eliminates relay wear-out and contact bounce; R_DS(on) stability ensures consistent coil energization across −40 °C to +150 °C ambient.

Use Scenario: Driving 12 V DC blower motors in climate control systems with variable speed via PWM.

IC Role / Device Role / Timing Role: Low-side motor switch with integrated freewheeling diode; operates at 20–25 kHz PWM frequency.

Use Value: Q_GD = 2.6 nC and t_f = 13 ns enable fast, low-loss commutation; avalanche rating protects against back-EMF spikes.

Commercial Vehicle Lighting Control

Truck Trailer Brake Light Driver

Use Scenario: Solid-state replacement for incandescent lamp switches in headlight, fog light, and turn signal circuits.

IC Role / Device Role / Timing Role: Logic-level load switch interfacing directly with CAN/LIN node microcontrollers.

Use Value: V_GS(th) ≤ 2 V ensures turn-on even with degraded 3.3 V supply; 55 V rating covers ISO 7637-2 pulse 5a (75 V transient).

Use Scenario: Controlling trailer brake lights and stop lamps over 24 V vehicle bus with long cable runs.

IC Role / Device Role / Timing Role: High-side switch with Kelvin source sensing capability for current monitoring.

Use Value: R_th(j-mb) = 4.1 K/W allows direct mounting to chassis; 16 mJ E_AS withstands inductive kick from long harness inductance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL130N5LF6AG	60 V V_DS, R_DS(on) = 1.3 mΩ @ 10 V, but requires 10 V gate drive for full spec; not logic-level	Requires gate driver IC for 3.3 V MCU interface; unsuitable where space or BOM count is constrained	Select only if higher voltage margin and lower R_DS(on) justify added gate drive complexity
IRLR024NPBF	55 V V_DS, R_DS(on) = 45 mΩ @ 10 V, but V_GS(th) = 1–2.5 V - marginal at 3.3 V; not AEC-Q101 qualified	Lacks automotive qualification and thermal derating data; limited to non-safety-critical consumer/industrial use	Acceptable for cost-sensitive 12 V industrial controls where AEC-Q101 is not mandated

Compared with STL130N5LF6AG and IRLR024NPBF, BUK92150-55A uniquely combines true logic-level operation (guaranteed turn-on at 3.3 V), AEC-Q101 qualification, and 175 °C rating - making it the only drop-in solution for thermally demanding automotive power nodes without gate driver overhead.

Availability

BUK92150-55A is available at Aetrix Electronics and suitable for automotive engine control modules, HVAC motor drives, commercial vehicle lighting systems, and trailer brake controllers requiring stable component supply and long-term lifecycle support.

Supply support for BUK92150-55A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection.

The BUK92150-55A belongs to Nexperia's TrenchMOS logic-level FET product line, engineered specifically for replacing electromechanical relays and discrete driver stages in 12 V/24 V automotive power distribution systems.

FAQ

Is BUK92150-55A compatible with 3.3 V microcontroller GPIOs?

Yes. With V_GS(th) = 1–2 V typical at 25 °C and guaranteed turn-on at V_GS = 4.5 V (R_DS(on) = 155 mΩ), the device fully enhances using standard 3.3 V logic outputs. Its low threshold ensures robust operation even with voltage droop or temperature variation.

What is the maximum continuous drain current at 100 °C mounting base temperature?

Per Figure 3 in the datasheet, the continuous drain current is 7.8 A at T_mb = 100 °C and V_GS = 5 V. This reflects thermal derating due to reduced heat transfer efficiency - critical for under-hood designs where heatsink temperature exceeds 70 °C.

Does BUK92150-55A include an integrated body diode, and what are its key parameters?

Yes. It features an integrated source-drain diode with V_SD = 0.85 V typical at I_S = 15 A and T_j = 25 °C, reverse recovery time t_rr = 24 ns, and recovered charge Q_r = 26 nC. These values support efficient freewheeling in PWM-driven inductive loads like solenoids and DC motors.

How is the mounting base (mb) electrically connected, and what PCB layout guidance applies?

The mounting base is internally connected to the drain terminal. For optimal thermal and electrical performance, it must be soldered to a large, thermally isolated copper pour on the PCB. Minimum recommended pad area is 100 mm² with ≥2 oz copper and 4+ thermal vias to inner ground planes - per Nexperia's SOT428 layout guidelines.

BUK92150-55A,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 11A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 125mOhm @ 5A, 10V

Vgs(th) (Max) @ Id:: 2V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: 6 nC @ 5 V

Vgs (Max):: ±15V

Input Capacitance (Ciss) (Max) @ Vds:: 338 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 36W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

BUK92150-55A,118 FAQ

1.How can I place an order for BUK92150-55A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK92150-55A,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BUK92150-55A,118 reliable?

The price and inventory of BUK92150-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK92150-55A,118 is usually 5 days.

3.What payment methods are accepted for BUK92150-55A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK92150-55A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK92150-55A,118?

BUK92150-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK92150-55A,118 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BUK92150-55A,118?

For technical support, including BUK92150-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK92150-55A,118 requirements.

6.How does Aetrix verify that BUK92150-55A,118 is sourced from the original manufacturer or authorized distributors?

All BUK92150-55A,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BUK92150-55A,118 meets industry standards.

7.What is the process for return or replacement of BUK92150-55A,118?

All BUK92150-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK92150-55A,118, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BUK92150-55A,118 part is unused and in its original packaging.

Return procedure for BUK92150-55A,118:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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