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

Nexperia USA Inc. BUK9609-75A,118

Name: BUK9609-75A,118
Brand: Nexperia USA Inc.
SKU: BUK9609-75A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9609-75A,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

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

Datasheet:: BUK9609-75A,118.pdf

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

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Product details

Overview

BUK9609-75A,118 from Nexperia is a logic-level N-channel TrenchMOS FET in D2PAK (SOT404) package, rated for 75 V V_DS, 75 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature. It delivers 7.23 mΩ R_DS(on) at V_GS = 10 V and 25 °C, supports automotive AEC-Q101 qualification, and is designed for high-reliability 12 V/24 V/42 V power switching in thermally demanding environments.

For engineers reviewing the BUK9609-75A,118 datasheet, BUK9609-75A,118 pinout, BUK9609-75A,118 application, or BUK9609-75A,118 equivalent, this device is selected for its low on-resistance, logic-level gate drive compatibility (V_GS(th) = 1.5 V typ), avalanche ruggedness (562 mJ), and mounting-base thermal resistance of 0.65 K/W - critical for motor, lamp, and solenoid control in automotive ECUs.

Technical Context

This FET employs TrenchMOS technology to achieve low conduction losses and stable threshold voltage across temperature (V_GS(th) = 0.5 V min at 175 °C). Its gate-source voltage rating of ±10 V and peak gate pulse tolerance of ±15 V support robust drive circuit design in noisy automotive environments.

The device features an integrated source-drain diode with 0.85 V forward voltage at 25 A and 25 °C, and exhibits dynamic parameters including C_iss = 6631 pF (typ), t_d(on) = 47 ns, and t_f = 226 ns - enabling efficient switching in DC-DC converters and load-switching applications up to 100 kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	75 V - Maximum drain-source blocking voltage; enables use in 42 V automotive systems with margin.
R_DS(on) @ V_GS = 10 V	7.23 mΩ (typ) - Low conduction loss at full gate drive; reduces I²R heating in high-current loads.
R_DS(on) @ V_GS = 4.5 V	9.95 mΩ (max) - Ensures reliable turn-on with standard 5 V logic controllers without level-shifting.
T_j max	175 °C - Enables operation in under-hood environments and high-power density PCB layouts.
E_AS	562 mJ - Unclamped avalanche energy rating supports inductive load switching without external snubbers.
R_th(j-mb)	0.65 K/W - Low junction-to-mounting-base thermal resistance allows direct heatsink attachment for 230 W P_tot.
V_GS(th)	1.5 V (typ) - Logic-level threshold ensures full enhancement with 3.3 V or 5 V microcontroller outputs.

Pinout & Package

Package: D2PAK (SOT404), plastic single-ended surface-mounted package with isolated mounting base connected to drain; 3 leads (one lead cropped); footprint optimized for high-power thermal transfer.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control terminal; accepts logic-level input (3.3 V/5 V); requires <100 nA leakage current at 10 V.
2 (D)	Drain	Main current path output; electrically tied to mounting base for direct heatsink interface and low-inductance layout.
3 (S)	Source	Power return node; referenced to ground in low-side switch configuration; internal source inductance = 7.5 nH.
Mounting Base (mb)	Drain Connection	Exposed metal pad soldered to PCB copper pour; provides primary thermal path and contributes to drain current path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive safety-critical applications including engine control, body electronics, and ADAS power stages.
Logic-level gate drive	V_GS(th) = 1.5 V typ enables direct interfacing with MCU GPIOs without gate drivers in 5 V systems.
175 °C junction rating	Supports sustained operation in under-hood ambient temperatures up to 125 °C with derating margin.
Low R_DS(on) at 4.5 V	9.95 mΩ max ensures <1.5 W conduction loss at 39 A, reducing thermal stress in compact designs.
High avalanche energy	562 mJ unclamped E_AS allows safe interruption of inductive currents in solenoid and motor drives.

Applications

Automotive Engine Control

Commercial Vehicle Lighting

Use Scenario: High-side switching of fuel injector coils in gasoline/diesel ECUs.

IC Role / Device Role / Timing Role: Power switch controlling 12 V/24 V inductive loads with precise PWM timing and fast fall time (226 ns).

Use Value: Avalanche ruggedness (562 mJ) absorbs coil flyback energy without external diodes; 175 °C rating sustains reliability near hot engine blocks.

Use Scenario: PWM dimming of LED headlamps and fog lamps in trucks and buses.

IC Role / Device Role / Timing Role: Low-side switch modulating 24 V/42 V loads at 1–20 kHz with minimal conduction loss.

Use Value: 7.23 mΩ R_DS(on) limits power dissipation to <0.5 W at 8 A, enabling compact heatsink-free PCB layout.

Industrial Solenoid Actuation

Off-Highway Equipment Motor Control

Use Scenario: On/off control of hydraulic solenoids in agricultural and construction machinery.

IC Role / Device Role / Timing Role: Robust power switch handling 100 ms pulses with peak current up to 440 A (IDM).

Use Value: 440 A peak drain current and 0.65 K/W thermal resistance enable short-duration high-force actuation without thermal shutdown.

Use Scenario: Bidirectional DC motor control in electric winches and steering assist modules.

IC Role / Device Role / Timing Role: Half-bridge high-side or low-side element with fast switching (t_d(off) = 424 ns) and low C_oss (905 pF typ).

Use Value: Low output capacitance minimizes switching losses during commutation; TrenchMOS structure ensures stable R_DS(on) over lifetime.

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
STL220N6F7	R_DS(on) = 2.2 mΩ @ 10 V; TO-220FP package; no AEC-Q101 certification.	Higher current capability but lacks automotive qualification and has higher gate charge (Q_G = 120 nC vs. 92 nC).	Preferred for industrial 60 V systems where qualification isn't required and lower R_DS(on) justifies larger package.
IRF1405ZLPBF	R_DS(on) = 5.3 mΩ @ 10 V; TO-220AB; V_GS(th) = 2–4 V; not logic-level optimized.	Requires ≥4.5 V gate drive for full enhancement; unsuitable for 3.3 V MCU interfaces.	Only suitable when gate driver ICs are available and automotive qualification is unnecessary.

Compared with STL220N6F7 and IRF1405ZLPBF, BUK9609-75A,118 uniquely combines AEC-Q101 compliance, true logic-level operation (1.5 V V_GS(th)), and D2PAK thermal performance - making it the only drop-in solution for space-constrained, high-reliability automotive load switching.

Availability

BUK9609-75A,118 is available at Aetrix Electronics and suitable for automotive engine control units, commercial vehicle lighting systems, and industrial solenoid actuation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for BUK9609-75A,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, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

BUK9609-75A,118 belongs to Nexperia's Automotive Logic-Level Power MOSFET product line, engineered specifically for AEC-Q101-compliant high-current switching in harsh-temperature automotive subsystems.

FAQ

Is BUK9609-75A,118 suitable for high-side switching configurations?

Yes - its 75 V V_DS rating and 175 °C junction temperature support high-side operation in 42 V automotive systems. The mounting base is internally connected to the drain, enabling direct heatsinking while maintaining isolation between source and heatsink. Gate drive must provide sufficient voltage margin above V_GS(th) (1.5 V typ) and account for bootstrap capacitor requirements in floating-gate applications.

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

Per Figure 1 in the datasheet, the normalized continuous drain current drops to ~65% at T_mb = 100 °C, resulting in approximately 49 A (65% of 75 A). This derating reflects thermal limitations of the D2PAK package and must be applied in thermal design calculations alongside R_th(j-mb) = 0.65 K/W and ambient conditions.

Does BUK9609-75A,118 include integrated ESD protection?

No - the device does not feature on-chip ESD protection diodes. External TVS or RC networks are recommended on gate and drain lines in automotive environments per ISO 10605 standards. Gate oxide withstands ±15 V pulsed V_GS, but sustained overvoltage or fast transients require external clamping.

Can BUK9609-75A,118 replace BUZ70 in existing designs?

Not directly - BUZ70 is a TO-220 device with higher R_DS(on) (12 mΩ), lower current rating (14 A), and no AEC-Q101 qualification. While BUK9609-75A,118 offers superior performance, its D2PAK footprint, thermal interface, and gate drive sensitivity require PCB layout and drive circuit review before substitution.

BUK9609-75A,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:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 75 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:: 8.5mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 8840 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 230W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

BUK9609-75A,118 FAQ

1.How can I place an order for BUK9609-75A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9609-75A,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 BUK9609-75A,118 reliable?

The price and inventory of BUK9609-75A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9609-75A,118 is usually 5 days.

3.What payment methods are accepted for BUK9609-75A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9609-75A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9609-75A,118?

BUK9609-75A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9609-75A,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 BUK9609-75A,118?

For technical support, including BUK9609-75A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9609-75A,118 requirements.

6.How does Aetrix verify that BUK9609-75A,118 is sourced from the original manufacturer or authorized distributors?

All BUK9609-75A,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 BUK9609-75A,118 meets industry standards.

7.What is the process for return or replacement of BUK9609-75A,118?

All BUK9609-75A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9609-75A,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 BUK9609-75A,118 part is unused and in its original packaging.

Return procedure for BUK9609-75A,118:

1.Submit a request within 90 days.

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

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