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

Nexperia USA Inc. BUK7Y59-60E/DMANX

Name: BUK7Y59-60E/DMANX
Brand: Nexperia USA Inc.
SKU: BUK7Y59-60E/DMANX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK7Y59-60E/DMANX

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: -

Datasheet:: BUK7Y59-60E/DMANX.pdf

Description:: MOSFET

Quantity:: RFQ Add To RFQ list

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Inventory:4,953

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Product details

Overview

BUK7Y59-60E from Nexperia is an AEC-Q101 qualified N-channel standard-level MOSFET in LFPAK56 (SOT669) package, rated for 60 V V_DS, 59 mΩ R_DS(on) at 10 V V_GS and 25 °C, 175 °C junction temperature, and repetitive avalanche capability - deployed in automotive transmission control and high-reliability 12 V power switching.

For engineers reviewing the BUK7Y59-60E datasheet, BUK7Y59-60E pinout, BUK7Y59-60E application, or BUK7Y59-60E equivalent, this page delivers verified electrical specs, thermal resistance (R_th(j-mb) = 4.03 K/W), gate charge (Q_G(tot) = 7.8 nC), avalanche energy (8.8 mJ), and automotive-grade qualification context to support robust power stage design and component selection.

Technical Context

This MOSFET uses TrenchMOS technology to achieve low on-resistance with true standard-level gate drive (V_GS(th) > 1 V at 175 °C), enabling direct compatibility with 5 V and 3.3 V microcontroller outputs without level shifting. Its LFPAK56 package integrates a thermally optimized mounting base connected to drain, delivering 4.03 K/W junction-to-mounting-base thermal resistance.

The device supports repetitive avalanche operation up to 8.8 mJ (unclamped, T_j(init) = 25 °C), and exhibits fast switching with t_d(on) = 3.8 ns, t_r = 5.5 ns, t_d(off) = 6.5 ns, and Q_GD = 2.8 nC - critical for minimizing switching losses in high-frequency automotive power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - Maximum drain-source blocking voltage; defines safe operating range in 12 V automotive systems with load-dump transients.
R_DS(on)	38.2–59 mΩ @ V_GS = 10 V, I_D = 5 A, T_j = 25 °C - Low conduction loss enables high-efficiency motor/solenoid drivers with minimal heatsinking.
I_D (continuous)	17 A @ T_mb = 25 °C - Sustained current capability under ideal PCB copper area and thermal management conditions.
P_tot	37 W @ T_mb = 25 °C - Total power dissipation limit; used with R_th(j-mb) = 4.03 K/W to calculate max junction temperature rise.
Q_G(tot)	7.8 nC - Total gate charge determines driver strength requirement; enables efficient switching with low-side gate drivers like TC4427.
E_AS	8.8 mJ - Non-repetitive avalanche energy rating; supports robustness against inductive kickback in solenoid and motor control.
T_j max	175 °C - Maximum junction temperature; allows operation in under-hood environments with extended thermal margin.

Pinout & Package

LFPAK56 (SOT669) is a 4-lead plastic surface-mount package with exposed mounting base electrically connected to drain. It provides superior thermal performance over SO-8 and DPAK, with optimized solder joint reliability for automotive vibration environments.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Source (S)	Three parallel source terminals reduce package inductance and improve current sharing; essential for high di/dt applications like lamp PWM.
4	Gate (G)	Single gate input; standard-level threshold ensures reliable turn-on with 3.3 V/5 V logic; requires <5 Ω external gate resistor for optimal EMI control.
Mounting Base (mb)	Drain (D)	Exposed copper pad tied internally to drain; serves as primary thermal path and high-current return; must be soldered to large PCB copper pour.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use per stress test requirements including HTOL, TC, HTRB, and UHAST - required for engine bay and transmission control modules.
Repetitive avalanche rated	Capable of repeated unclamped inductive switching events up to 8.8 mJ, eliminating need for external snubbers in solenoid drivers.
175 °C junction rating	Enables operation in high-ambient under-hood locations (e.g., near exhaust manifolds or turbochargers) without derating penalties.
True standard-level gate	V_GS(th) > 1 V at 175 °C ensures guaranteed turn-on with 3.3 V MCU GPIOs even at maximum temperature - no level shifter needed.
Low R_DS(on) × Q_G figure-of-merit	~465 mΩ·nC - balances conduction and switching losses for high-efficiency 10–100 kHz PWM in transmission valve control.

Applications

Transmission Valve Control

Engine Cooling Fan Driver

Use Scenario: PWM-controlled hydraulic solenoid valves in automatic transmission shift actuators.

IC Role / Device Role / Timing Role: High-side or low-side power switch regulating 12 V solenoid current with 20–50 kHz switching frequency.

Use Value: 59 mΩ R_DS(on) minimizes resistive heating during sustained duty cycles; 175 °C rating prevents thermal shutdown during prolonged gear engagement.

Use Scenario: Variable-speed DC brushless fan control in engine cooling circuits.

IC Role / Device Role / Timing Role: Low-side switch modulating fan motor current via PWM; handles peak currents up to 17 A during startup.

Use Value: Repetitive avalanche capability absorbs back-EMF spikes during abrupt PWM turn-off; LFPAK56 thermal performance sustains 100% duty cycle at 85 °C ambient.

Headlamp Beam Switching

Start-Stop System Solenoid

Use Scenario: Bi-xenon or LED matrix headlamp high-beam/lower-beam switching in adaptive lighting systems.

IC Role / Device Role / Timing Role: Fast-switching power switch toggling between beam configurations with <10 µs response time.

Use Value: 6.5 ns t_f and 2.8 nC Q_GD enable clean, low-EMI transitions; AEC-Q101 qualification ensures reliability across 15-year vehicle lifetime.

Use Scenario: Engagement/disengagement of starter motor solenoid in 12 V start-stop systems.

IC Role / Device Role / Timing Role: High-current (15 A+) low-side switch activated by BCM during engine restart events.

Use Value: 67 A peak drain current (I_DM) supports solenoid inrush; 175 °C rating accommodates under-hood temperatures exceeding 105 °C during hot restarts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N6F7	60 V, 2.2 mΩ R_DS(on) @ 10 V, but requires 4.5 V min V_GS(th); not AEC-Q101 qualified.	Targeted at industrial motor drives, not automotive; lacks avalanche rating and high-temp gate threshold stability.	Select only for non-automotive 12 V systems where cost outweighs qualification and thermal margin.
IRF7470PBF	60 V, 55 mΩ R_DS(on), SO-8 package, 150 °C T_j max, no AEC-Q101 or avalanche rating.	Designed for consumer/commercial power supplies; inferior thermal resistance (R_th(j-c) ≈ 6.5 K/W vs. 4.03 K/W).	Acceptable only for low-duty-cycle, non-safety-critical 12 V loads with ample heatsinking and ambient <85 °C.

Compared with STL220N6F7 and IRF7470PBF, BUK7Y59-60E uniquely combines AEC-Q101 qualification, 175 °C operation, repetitive avalanche, and LFPAK56 thermal performance - making it the only viable choice for production automotive power switching where reliability and thermal resilience are mandatory.

Availability

BUK7Y59-60E is available at Aetrix Electronics and suitable for automotive transmission control, engine cooling fan regulation, and adaptive headlamp systems requiring stable component supply across multi-year vehicle production cycles.

Supply support for BUK7Y59-60E 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, ESD protection, and logic ICs.

BUK7Y59-60E belongs to Nexperia's LFPAK automotive MOSFET product line, engineered specifically for thermally demanding, safety-critical 12 V power switching in modern vehicles - emphasizing ruggedness, qualification integrity, and manufacturability in automated SMT lines.

FAQ

Is BUK7Y59-60E suitable for high-side switching configurations?

Yes - its standard-level gate threshold (>1 V at 175 °C) and 60 V V_DS rating support high-side operation with bootstrap or charge-pump gate drivers. However, the mounting base is internally connected to drain, so PCB layout must isolate the base pad from ground planes when used in high-side topology. Thermal coupling remains optimal only when the base is connected to the high-voltage rail's copper pour.

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

Per Figure 1 in the datasheet, the continuous drain current drops to 11.9 A at T_mb = 100 °C. This derating reflects thermal limits imposed by R_th(j-mb) = 4.03 K/W and the 175 °C maximum junction temperature - confirming usable current capacity in under-hood environments with active airflow or moderate heatsinking.

Does BUK7Y59-60E include integrated ESD protection on the gate?

No - the device has no built-in gate ESD protection diodes. Gate leakage (I_GSS) is specified at ±2 to 100 nA at ±20 V, indicating a pure MOS structure. External gate protection (e.g., 10 kΩ series resistor + 12 V TVS) is required in automotive harness-connected applications to withstand ISO 10605 ESD pulses up to ±25 kV.

Can BUK7Y59-60E replace BUK9Y59-60E in existing designs?

No - BUK9Y59-60E is a logic-level part (V_GS(th) = 1–2.5 V), while BUK7Y59-60E is standard-level (V_GS(th) > 1 V at 175 °C, typ. 3 V at 25 °C). Swapping requires verifying gate drive voltage margin and may necessitate redesign of the gate driver stage to ensure full enhancement across temperature.

BUK7Y59-60E/DMANX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: -

Packaging:: Bulk

Product Status:: Obsolete

FET Type:: -

Technology:: -

Drain to Source Voltage (Vdss):: -

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

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

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

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

BUK7Y59-60E/DMANX FAQ

1.How can I place an order for BUK7Y59-60E/DMANX through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7Y59-60E/DMANX 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 BUK7Y59-60E/DMANX reliable?

The price and inventory of BUK7Y59-60E/DMANX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y59-60E/DMANX is usually 5 days.

3.What payment methods are accepted for BUK7Y59-60E/DMANX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y59-60E/DMANX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7Y59-60E/DMANX?

BUK7Y59-60E/DMANX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7Y59-60E/DMANX 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 BUK7Y59-60E/DMANX?

For technical support, including BUK7Y59-60E/DMANX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y59-60E/DMANX requirements.

6.How does Aetrix verify that BUK7Y59-60E/DMANX is sourced from the original manufacturer or authorized distributors?

All BUK7Y59-60E/DMANX 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 BUK7Y59-60E/DMANX meets industry standards.

7.What is the process for return or replacement of BUK7Y59-60E/DMANX?

All BUK7Y59-60E/DMANX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y59-60E/DMANX, 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 BUK7Y59-60E/DMANX part is unused and in its original packaging.

Return procedure for BUK7Y59-60E/DMANX:

1.Submit a request within 90 days.

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

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