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

NXP Semiconductors BUK654R0-75C,127

Name: BUK654R0-75C,127
Brand: NXP Semiconductors
SKU: BUK654R0-75C,127
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK654R0-75C,127

Manufacturer:: NXP Semiconductors

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: BUK654R0-75C,127.pdf

Description:: MOSFET N-CH 75V 120A TO220AB

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Product details

Overview

BUK654R0-75C from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS FET in TO-220AB (SOT78A) package, designed for high-current automotive power switching. It delivers 120 A continuous drain current at 25 °C mounting base temperature, 3.6 mΩ typical R_DS(on) at V_GS = 10 V and T_j = 25 °C, and supports 75 V drain-source voltage - enabling use in 12 V/24 V electric power steering and transmission control systems.

For engineers reviewing the BUK654R0-75C datasheet, BUK654R0-75C pinout, BUK654R0-75C application, or BUK654R0-75C equivalent, key selection criteria include its 175 °C junction rating, avalanche ruggedness (523 mJ), thermal resistance (0.49 K/W j-to-mb), gate drive compatibility with intermediate-level sources, and qualification for thermally demanding automotive environments.

Technical Context

This device uses advanced TrenchMOS technology to achieve low on-resistance and high current capability in a standard through-hole package. Its gate threshold voltage (1.8–2.8 V at 25 °C) enables reliable turn-on with common 5 V or 10 V gate drivers, while its robust avalanche rating supports unclamped inductive switching in motor and solenoid control.

The integrated source-drain diode (V_SD = 0.8–1.2 V at 25 A) and fast reverse recovery (t_rr = 72 ns) support bidirectional energy handling in H-bridge and start-stop micro-hybrid applications. Thermal design is anchored by a low R_th(j-mb) of 0.49 K/W, requiring heatsink mounting via the drain-connected mounting base.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	75 V maximum - supports full operation in 24 V automotive systems with margin against load dump transients.
R_DS(on)	3.6 mΩ typical at V_GS = 10 V, T_j = 25 °C - enables <1 W conduction loss at 50 A, critical for thermal management in power steering modules.
I_D	120 A continuous at T_mb = 25 °C - limited by TO-220AB package thermal capacity, not die capability.
P_tot	306 W at T_mb = 25 °C - defines absolute maximum power dissipation before thermal derating begins.
E_AS	523 mJ non-repetitive avalanche energy - allows safe clamping of inductive kickback in solenoid and motor control without external snubbers.
T_j max	175 °C - qualified for under-hood environments including engine bay and transmission control units.
R_th(j-mb)	0.49 K/W - enables efficient heat transfer to external heatsink; requires mechanical mounting to drain-connected base.

Pinout & Package

Package: TO-220AB (SOT78A), plastic single-ended package with heatsink-mounted drain-connected mounting base, 3 leads, and one mounting hole. Mounting base is electrically connected to drain terminal.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control input; accepts 4.5–10 V logic-level or intermediate gate drive; threshold 1.8–2.8 V ensures compatibility with 5 V microcontrollers.
2 (D) + mb	Drain + Mounting Base	Main high-side power path; mounting base is electrically tied to drain and must be isolated from chassis unless circuit topology permits.
3 (S)	Source	Power return path; referenced to system ground in low-side switch configurations; carries full load current and influences gate drive loop inductance.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock - required for ECU, EPS, and transmission control modules.
175 °C junction rating	Enables operation in high-ambient under-hood locations without derating at temperatures up to 150 °C ambient (with proper heatsinking).
Low R_DS(on) at 4.5 V	4.4 mΩ typical at V_GS = 4.5 V - supports direct drive from 5 V MCU outputs without level-shifting or gate driver ICs.
High avalanche ruggedness	523 mJ unclamped single-pulse energy - eliminates need for external TVS or snubber in inductive load switching (e.g., fuel injectors, HVAC actuators).
Integrated source-drain diode	V_SD = 0.8–1.2 V at 25 A, t_rr = 72 ns - provides freewheeling path in half-bridge topologies and reduces component count in motor drives.

Applications

Electric Power Steering (EPS)	Start-Stop Micro-Hybrid Systems
Use Scenario: High-current motor phase switching in column-assist or rack-assist EPS modules operating at 12 V or 24 V. IC Role / Device Role / Timing Role: Low-side or high-side power switch controlling brushed or brushless motor windings; handles peak currents >100 A during torque assist. Use Value: 3.6 mΩ R_DS(on) minimizes I²R losses during sustained assist, while 175 °C rating ensures reliability across engine bay temperature extremes.	Use Scenario: Controlling starter motor engagement and battery isolation in 12 V start-stop systems with frequent cranking cycles. IC Role / Device Role / Timing Role: Main battery disconnect switch or starter solenoid driver; subjected to high inrush currents and repetitive thermal cycling. Use Value: 523 mJ avalanche energy absorbs inductive energy from starter coil de-energization; AEC-Q101 qualification guarantees long-term field reliability.
Transmission Control Valves	Automotive Lighting & Lamp Drivers
Use Scenario: Driving electro-hydraulic pressure control solenoids in automatic transmissions, requiring precise PWM current regulation. IC Role / Device Role / Timing Role: High-side or low-side PWM switch regulating solenoid current at frequencies up to 1 kHz; operates continuously at elevated under-hood temperatures. Use Value: Stable R_DS(on) over temperature (10.9 mΩ max at 175 °C) ensures consistent current delivery; low Q_G (234 nC) enables efficient high-frequency switching.	Use Scenario: Switching high-power LED headlamps, fog lamps, or interior lighting in modern vehicle architectures with centralized power distribution. IC Role / Device Role / Timing Role: Load switch managing up to 100 W per channel; must survive load dump transients and meet EMC requirements. Use Value: 75 V V_DS rating exceeds ISO 7637-2 pulse 5a (120 V), and 175 °C rating prevents thermal shutdown during prolonged high-brightness operation.

Electric Power Steering (EPS)

Start-Stop Micro-Hybrid Systems

Use Scenario: High-current motor phase switching in column-assist or rack-assist EPS modules operating at 12 V or 24 V.

IC Role / Device Role / Timing Role: Low-side or high-side power switch controlling brushed or brushless motor windings; handles peak currents >100 A during torque assist.

Use Value: 3.6 mΩ R_DS(on) minimizes I²R losses during sustained assist, while 175 °C rating ensures reliability across engine bay temperature extremes.

Use Scenario: Controlling starter motor engagement and battery isolation in 12 V start-stop systems with frequent cranking cycles.

IC Role / Device Role / Timing Role: Main battery disconnect switch or starter solenoid driver; subjected to high inrush currents and repetitive thermal cycling.

Use Value: 523 mJ avalanche energy absorbs inductive energy from starter coil de-energization; AEC-Q101 qualification guarantees long-term field reliability.

Transmission Control Valves

Automotive Lighting & Lamp Drivers

Use Scenario: Driving electro-hydraulic pressure control solenoids in automatic transmissions, requiring precise PWM current regulation.

IC Role / Device Role / Timing Role: High-side or low-side PWM switch regulating solenoid current at frequencies up to 1 kHz; operates continuously at elevated under-hood temperatures.

Use Value: Stable R_DS(on) over temperature (10.9 mΩ max at 175 °C) ensures consistent current delivery; low Q_G (234 nC) enables efficient high-frequency switching.

Use Scenario: Switching high-power LED headlamps, fog lamps, or interior lighting in modern vehicle architectures with centralized power distribution.

IC Role / Device Role / Timing Role: Load switch managing up to 100 W per channel; must survive load dump transients and meet EMC requirements.

Use Value: 75 V V_DS rating exceeds ISO 7637-2 pulse 5a (120 V), and 175 °C rating prevents thermal shutdown during prolonged high-brightness operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4F7AG	40 V V_DS, 220 A I_D, DFN8 5×6 mm package - lower voltage rating, surface-mount, no mounting base.	Targeted at 12 V board-mounted DC-DC and motor drivers where space is constrained and heatsinking is PCB-based.	Select when footprint and thermal interface differ significantly; not suitable for 24 V or high-peak-energy applications.
IRF1404ZPBF	40 V V_DS, 202 A I_D, TO-220AB package - same outline but lower voltage rating and higher R_DS(on) (4.7 mΩ min).	Legacy industrial motor control; lacks AEC-Q101 qualification and 175 °C rating.	Acceptable for non-automotive 12 V systems where qualification and extended temperature range are not required.

Compared with STL220N4F7AG and IRF1404ZPBF, the BUK654R0-75C uniquely combines 75 V rating, AEC-Q101 qualification, 175 °C operation, and TO-220AB heatsink-mounting - making it the only option among the three qualified for 24 V automotive power steering and transmission control.

Availability

BUK654R0-75C is available at Aetrix Electronics and suitable for electric power steering, start-stop micro-hybrid systems, and transmission control applications requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.

Supply support for BUK654R0-75C 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

The BUK654R0-75C belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for high-current, high-reliability switching in thermally aggressive automotive subsystems such as EPS and transmission control.

FAQ

What is the maximum continuous drain current for BUK654R0-75C?

The BUK654R0-75C supports 120 A continuous drain current at T_mb = 25 °C, as specified in the Quick Reference Data table. This rating is package-limited and decreases with rising mounting base temperature - e.g., ~80 A at T_mb = 100 °C. The BUK654R0-75C must be mounted to a heatsink to sustain this current in real-world conditions.

Is BUK654R0-75C suitable for 24 V automotive systems?

Yes, the BUK654R0-75C is explicitly rated for 75 V drain-source voltage and qualified to AEC-Q101, making it suitable for 24 V automotive systems including electric power steering and transmission control. Its 175 °C junction rating and 523 mJ avalanche energy ensure robustness against load dump transients and inductive switching stresses encountered in these applications. The BUK654R0-75C is designed for this environment.

Does BUK654R0-75C require a gate driver IC?

The BUK654R0-75C has a gate threshold voltage of 1.8–2.8 V and delivers low R_DS(on) (4.4 mΩ typical) at V_GS = 4.5 V, enabling direct drive from 5 V microcontrollers in many low-frequency switching applications. However, for high-speed PWM (e.g., >10 kHz) or high-current gate charging (Q_G(tot) = 234 nC), a dedicated gate driver improves efficiency and reduces switching losses. The BUK654R0-75C supports both configurations.

What is the thermal resistance from junction to mounting base for BUK654R0-75C?

The BUK654R0-75C has a maximum thermal resistance of 0.49 K/W from junction to mounting base (R_th(j-mb)), as specified in Table 5. This value assumes proper mechanical mounting of the drain-connected base to a heatsink with appropriate thermal interface material. It does not include heatsink or ambient thermal resistance - those must be added separately in system-level thermal analysis. The BUK654R0-75C relies on this low R_th(j-mb) for effective power dissipation.

Is BUK654R0-75C pin-compatible with other TO-220AB N-channel MOSFETs?

The BUK654R0-75C uses standard TO-220AB (SOT78A) pinout: Pin 1 = Gate, Pin 2 = Drain (mounting base), Pin 3 = Source. While the physical outline and lead assignment match industry-standard TO-220AB, electrical characteristics (e.g., V_DS, R_DS(on), Q_G) differ significantly across vendors and part numbers. Substitution requires verification of voltage, current, thermal, and switching performance - the BUK654R0-75C is not guaranteed drop-in compatible with generic TO-220AB MOSFETs.

BUK654R0-75C,127 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: TrenchMOS™

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 75 V

Current - Continuous Drain (Id) @ 25°C:: 120A (Tc)

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

Rds On (Max) @ Id, Vgs:: 4.2mOhm @ 25A, 10V

Vgs(th) (Max) @ Id:: 2.8V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: 234 nC @ 10 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 15450 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 306W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

BUK654R0-75C,127 FAQ

1.How can I place an order for BUK654R0-75C,127 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK654R0-75C,127 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 BUK654R0-75C,127 reliable?

The price and inventory of BUK654R0-75C,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK654R0-75C,127 is usually 5 days.

3.What payment methods are accepted for BUK654R0-75C,127?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK654R0-75C,127 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK654R0-75C,127?

BUK654R0-75C,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK654R0-75C,127 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 BUK654R0-75C,127?

For technical support, including BUK654R0-75C,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK654R0-75C,127 requirements.

6.How does Aetrix verify that BUK654R0-75C,127 is sourced from the original manufacturer or authorized distributors?

All BUK654R0-75C,127 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 BUK654R0-75C,127 meets industry standards.

7.What is the process for return or replacement of BUK654R0-75C,127?

All BUK654R0-75C,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK654R0-75C,127, 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 BUK654R0-75C,127 part is unused and in its original packaging.

Return procedure for BUK654R0-75C,127:

1.Submit a request within 90 days.

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

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