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

Nexperia USA Inc. BUK9608-55A,118

Name: BUK9608-55A,118
Brand: Nexperia USA Inc.
SKU: BUK9608-55A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9608-55A,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: BUK9608-55A,118.pdf

Description:: MOSFET N-CH 55V 75A D2PAK

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Product details

Overview

BUK9608-55A,118 from Nexperia is a logic-level N-channel TrenchMOS FET in D2PAK (SOT404) package, rated for 55 V V_DS, 75 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature. It delivers 6.4 mΩ R_DS(on) at V_GS = 10 V and ID = 25 A, and is AEC-Q101 qualified for automotive power switching of 12 V/24 V loads including motors, lamps, and solenoids.

For engineers reviewing the BUK9608-55A,118 datasheet, BUK9608-55A,118 pinout, BUK9608-55A,118 application, or BUK9608-55A,118 equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.5 V typ), thermal robustness (R_th(j-mb) = 0.59 K/W), avalanche energy rating (670 mJ), and automotive qualification status.

Technical Context

This device uses TrenchMOS technology to achieve low on-resistance and high current capability in a surface-mount D2PAK package with integrated mounting base connected to drain. Its gate threshold voltage (1.0–2.0 V at 25 °C) enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.

The internal structure includes a robust source-drain diode (V_SD = 0.85 V at 25 A), fast switching characteristics (t_r = 175 ns, t_f = 167 ns), and specified dynamic parameters including Q_GD = 43 nC and C_iss = 4551 pF - all validated under automotive-relevant test conditions per IEC 60134 limiting values.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V maximum drain-source voltage - supports 24 V automotive systems with 2× safety margin against load-dump transients.
R_DS(on)	6.4 mΩ typical at V_GS = 10 V, ID = 25 A, T_j = 25 °C - enables <1 W conduction loss at 40 A, reducing heatsink requirements.
I_D (cont)	75 A at T_mb = 25 °C - limited by package thermal capacity, not die capability (IDM = 503 A pulsed).
T_j max	175 °C - allows operation in engine bay or under-hood environments without derating below ambient 125 °C.
E_AS	670 mJ non-repetitive avalanche energy - provides robustness against inductive switching spikes in motor/solenoid control.
R_th(j-mb)	0.59 K/W - enables efficient heat transfer to PCB copper or heatsink via exposed mounting base (drain-connected).
V_GS(th)	1.5 V typical at T_j = 25 °C - ensures reliable turn-on with standard logic-level MCU GPIOs (3.3 V/5 V).

Pinout & Package

Package: SOT404 (D2PAK), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) is electrically connected to drain and serves as primary thermal path.

Pin/Terminal	Circuit Role	Design Meaning
1	G (Gate)	Control terminal; accepts logic-level input (V_GS(th) ≤ 2 V); requires <100 nA leakage current at 10 V.
2	D (Drain)	Main power output node; internally bonded to mounting base (mb); carries full load current and dissipates heat.
3	S (Source)	Power return path; referenced to system ground; used for current sensing and gate drive reference.
mb	Mounting Base	Exposed copper pad electrically tied to drain; provides low-thermal-resistance path (0.59 K/W) to heatsink or PCB copper.

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) = 1.5 V typ enables direct interface with 3.3 V/5 V MCUs - eliminates need for gate driver ICs in cost-sensitive designs.
AEC-Q101 qualification	Validated for automotive critical applications including engine control, body electronics, and ADAS power stages.
175 °C junction rating	Supports sustained operation in thermally demanding locations (e.g., near exhaust, under hood) without thermal shutdown.
Low R_DS(on) at 4.5 V	8.5 mΩ at V_GS = 4.5 V, ID = 25 A - maintains efficiency even with marginal gate drive voltage or elevated temperature.
High avalanche ruggedness	670 mJ E_AS - withstands unclamped inductive energy during MOSFET turn-off in motor/solenoid circuits without failure.

Applications

Automotive Body Control Module

12 V/24 V DC Motor Driver

Use Scenario: Switching power to door locks, window lifters, and HVAC actuators in modern vehicle BCMs.

IC Role / Device Role / Timing Role: High-side or low-side power switch controlling 12 V/24 V inductive loads with PWM or on/off duty cycles.

Use Value: AEC-Q101 qualification and 175 °C rating ensure reliability across vehicle lifetime; low R_DS(on) minimizes self-heating in densely packed modules.

Use Scenario: Driving brushed DC motors in seat adjusters, sunroof mechanisms, and cooling fans.

IC Role / Device Role / Timing Role: Low-side switching element handling bidirectional current during motor braking and freewheeling.

Use Value: Integrated source-drain diode (V_SD = 0.85 V) and 670 mJ avalanche rating suppress inductive kickback without external flyback diodes.

LED Headlamp Power Stage

Industrial Solenoid Controller

Use Scenario: High-current switching of LED arrays in adaptive front lighting systems (AFS) requiring precise dimming and fault protection.

IC Role / Device Role / Timing Role: Constant-current regulation stage using PWM-controlled high-side or low-side configuration.

Use Value: Fast switching (t_r/t_f < 200 ns) enables high-frequency PWM (>1 kHz) with minimal switching loss and EMI.

Use Scenario: Controlling hydraulic/pneumatic solenoids in agricultural machinery, construction equipment, and factory automation valves.

IC Role / Device Role / Timing Role: Robust power switch interfacing with industrial PLC outputs or microcontroller GPIOs.

Use Value: Logic-level gate drive simplifies interface with 5 V industrial controllers; 75 A rating supports high-force solenoids up to 500 W.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N5LF8AG	60 V V_DS, 220 A peak, R_DS(on) = 2.2 mΩ @ 10 V - lower R_DS(on) but larger H2PAK-6 package and no AEC-Q101 certification.	Targeted at industrial motor drives where automotive qualification is unnecessary and higher current is required.	Select when higher current headroom and lower conduction loss outweigh package size and automotive compliance needs.
IRF1405PBF	55 V V_DS, 169 A peak, R_DS(on) = 5.3 mΩ @ 10 V - legacy TO-220 package, no logic-level gate (V_GS(th) = 2–4 V), not AEC-Q101 qualified.	Suitable for general-purpose 55 V switching where gate drive voltage ≥10 V is available and automotive use is excluded.	Choose only for non-automotive, cost-sensitive designs with adequate gate drive voltage and thermal management infrastructure.

Compared with STL220N5LF8AG and IRF1405PBF, BUK9608-55A,118 uniquely combines AEC-Q101 qualification, true logic-level drive (≤2 V threshold), D2PAK thermal performance (0.59 K/W), and automotive-grade avalanche ruggedness - making it the only drop-in solution for space-constrained, thermally aggressive automotive power nodes.

Availability

BUK9608-55A,118 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V/24 V motor drivers, LED headlamp power stages, and industrial solenoid controllers requiring stable component supply across extended production lifecycles.

Supply support for BUK9608-55A,118 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 essential semiconductors - high-volume, high-reliability discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.

BUK9608-55A,118 belongs to Nexperia's Automotive Logic-Level Power MOSFET product line, engineered specifically for robust, thermally efficient switching in 12 V/24 V automotive subsystems where AEC-Q101 compliance and gate-drive simplicity are mandatory.

FAQ

Is BUK9608-55A,118 suitable for high-frequency PWM motor control?

Yes - its dynamic characteristics include t_r = 175 ns and t_f = 167 ns at V_GS = 5 V, enabling clean switching up to 20 kHz without excessive switching loss. The Q_GD = 43 nC and C_iss = 4551 pF values support stable gate drive design with standard 10 Ω series resistors and 3.3 V/5 V MCU outputs.

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

At T_mb = 100 °C, the continuous drain current is 75 A - identical to the 25 °C rating - because the device's current limit is package-defined (not silicon-limited), and Figure 1 shows current remains capped at 75 A across the full 25–150 °C mounting base range.

Can BUK9608-55A,118 be used in high-side switching configurations?

Yes - its V_GS rating of ±15 V and V_DGR = 55 V allow safe high-side operation with appropriate gate driver biasing. However, the mounting base is tied to drain, so thermal interface must accommodate high-side voltage potential; isolation or floating heatsink design is required.

Does the device 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 at I_S = 25 A and T_j = 25 °C, t_rr = 70 ns, and Q_r = 170 nC. These values enable efficient freewheeling in inductive loads and reduce need for external catch diodes in H-bridge or buck converter topologies.

BUK9608-55A,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

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:: 75A (Tc)

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

Rds On (Max) @ Id, Vgs:: 7.5mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 92 nC @ 5 V

Vgs (Max):: ±15V

Input Capacitance (Ciss) (Max) @ Vds:: 6021 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 253W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

BUK9608-55A,118 FAQ

1.How can I place an order for BUK9608-55A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9608-55A,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 BUK9608-55A,118 reliable?

The price and inventory of BUK9608-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9608-55A,118 is usually 5 days.

3.What payment methods are accepted for BUK9608-55A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9608-55A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9608-55A,118?

BUK9608-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9608-55A,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 BUK9608-55A,118?

For technical support, including BUK9608-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9608-55A,118 requirements.

6.How does Aetrix verify that BUK9608-55A,118 is sourced from the original manufacturer or authorized distributors?

All BUK9608-55A,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 BUK9608-55A,118 meets industry standards.

7.What is the process for return or replacement of BUK9608-55A,118?

All BUK9608-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9608-55A,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 BUK9608-55A,118 part is unused and in its original packaging.

Return procedure for BUK9608-55A,118:

1.Submit a request within 90 days.

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

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