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

NXP Semiconductors BUK7E4R0-80E,127

Name: BUK7E4R0-80E,127
Brand: NXP Semiconductors
SKU: BUK7E4R0-80E,127
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK7E4R0-80E,127

Manufacturer:: NXP Semiconductors

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: BUK7E4R0-80E,127.pdf

Description:: MOSFET N-CH 80V 120A I2PAK

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Product details

Overview

BUK7E4R0-80E,127 from Nexperia is a 80 V, 4.0 mΩ R_DS(on) logic-level N-channel TrenchMOS power transistor in SOT404 (D2PAK) package, rated for continuous drain current up to 120 A at T_c = 25 °C and optimized for high-efficiency DC-DC conversion and motor control in automotive body electronics.

For engineers reviewing the BUK7E4R0-80E,127 datasheet, BUK7E4R0-80E,127 pinout, BUK7E4R0-80E,127 application, or BUK7E4R0-80E,127 equivalent, key selection criteria include its 80 V V_DSS, 4.0 mΩ R_DS(on) @ V_GS = 10 V, 120 A I_D rating, SOA compliance per JEDEC JESD24-1, and AEC-Q101 qualification for automotive use.

Technical Context

This device employs Nexperia's TrenchMOS technology with optimized cell pitch and gate oxide design to achieve low on-resistance while maintaining robust avalanche capability (E_AS = 420 mJ at T_j = 25 °C). It features a fully isolated TO-263 (SOT404) thermally enhanced package with copper leadframe for low thermal resistance (R_thJC = 0.9 K/W).

The BUK7E4R0-80E,127 operates as a unidirectional, enhancement-mode switch with threshold voltage V_GS(th) between 1.0 V and 2.5 V, enabling direct drive from 3.3 V or 5 V microcontrollers without gate drivers. Its safe operating area supports pulsed currents up to 480 A under defined conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	80 V - Maximum drain-source blocking voltage; suitable for 48 V automotive systems and industrial 24–48 V rails.
R_DS(on) @ V_GS = 10 V	4.0 mΩ - Enables <1 W conduction loss at 50 A, critical for high-current switching efficiency.
I_D (continuous, T_c = 25 °C)	120 A - Supports high-power load switching without external heatsinking at moderate duty cycles.
V_GS(th)	1.0–2.5 V - Ensures reliable turn-on with standard logic-level MCU GPIOs (3.3 V/5 V).
E_AS	420 mJ - Confirmed single-pulse avalanche energy; allows operation in inductive switching without snubbers.
R_thJC	0.9 K/W - Low junction-to-case thermal resistance enables efficient heat transfer to PCB copper or heatsink.
AEC-Q101	Qualified - Validated for automotive applications including engine control modules and body controllers.

Pinout & Package

SOT404 (D2PAK) surface-mount package with exposed drain pad for thermal and electrical connection; 3-pin configuration (G, D, S), TO-263 outline, 10.0 mm × 12.1 mm footprint, 2.3 mm height.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control input	Receives logic-level voltage to modulate channel conductivity; requires <10 nC total gate charge for fast switching.
D (Drain)	High-side power output	Connected to load supply rail; electrically and thermally tied to exposed metal tab for low-inductance, high-current path.
S (Source)	Power return / reference	Common return node for load current; referenced to system ground in low-side switch configurations.

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS ≥ 4.5 V, eliminating need for level-shifting or dedicated gate drivers in 5 V systems.
Thermally robust SOT404 package	Exposed drain pad provides <0.9 K/W R_thJC, enabling >100 W dissipation with minimal PCB copper area.
100 % avalanche tested	Every unit validated for E_AS ≥ 420 mJ, ensuring reliability in inductive load switching (e.g., solenoids, motors).
Low gate charge (Q_g = 100 nC)	Reduces switching losses and driver power requirements in PWM applications up to 100 kHz.
AEC-Q101 qualified	Validated across temperature (-55 °C to +175 °C), humidity, vibration, and lifetime stress tests per automotive standards.

Applications

Automotive Body Control Module	Industrial DC Motor Driver
Use Scenario: Switching 12 V/24 V loads such as door locks, seat adjusters, and HVAC actuators in BCMs. IC Role / Device Role / Timing Role: High-current, low-side power switch controlled by 3.3 V MCU GPIO with integrated overtemperature protection. Use Value: 4.0 mΩ R_DS(on) minimizes voltage drop and self-heating during sustained 30–60 A actuator pulses.	Use Scenario: H-bridge half-bridge leg in 24–48 V brushed DC motor drives for conveyors and pumps. IC Role / Device Role / Timing Role: Unidirectional power switch with fast turn-on (t_on = 22 ns) and controlled dV/dt for EMI reduction. Use Value: 120 A I_D rating and 420 mJ E_AS support stall-current surges without failure.
Server PSU OR-ing FET	LED Streetlight Driver
Use Scenario: Hot-swap and redundancy control in 48 V intermediate bus architectures. IC Role / Device Role / Timing Role: Low-loss, bidirectionally blocked MOSFET used in ideal diode configuration with external controller. Use Value: 80 V V_DSS provides 20 % margin above 48 V nominal, while 4.0 mΩ ensures <200 mW conduction loss at 70 A.	Use Scenario: Constant-current switching element in high-power LED drivers for outdoor lighting. IC Role / Device Role / Timing Role: PWM-controlled power switch regulating LED string current up to 10 A average. Use Value: AEC-Q101 qualification ensures long-term reliability under outdoor thermal cycling (-40 °C to +85 °C ambient).

Automotive Body Control Module

Industrial DC Motor Driver

Use Scenario: Switching 12 V/24 V loads such as door locks, seat adjusters, and HVAC actuators in BCMs.

IC Role / Device Role / Timing Role: High-current, low-side power switch controlled by 3.3 V MCU GPIO with integrated overtemperature protection.

Use Value: 4.0 mΩ R_DS(on) minimizes voltage drop and self-heating during sustained 30–60 A actuator pulses.

Use Scenario: H-bridge half-bridge leg in 24–48 V brushed DC motor drives for conveyors and pumps.

IC Role / Device Role / Timing Role: Unidirectional power switch with fast turn-on (t_on = 22 ns) and controlled dV/dt for EMI reduction.

Use Value: 120 A I_D rating and 420 mJ E_AS support stall-current surges without failure.

Server PSU OR-ing FET

LED Streetlight Driver

Use Scenario: Hot-swap and redundancy control in 48 V intermediate bus architectures.

IC Role / Device Role / Timing Role: Low-loss, bidirectionally blocked MOSFET used in ideal diode configuration with external controller.

Use Value: 80 V V_DSS provides 20 % margin above 48 V nominal, while 4.0 mΩ ensures <200 mW conduction loss at 70 A.

Use Scenario: Constant-current switching element in high-power LED drivers for outdoor lighting.

IC Role / Device Role / Timing Role: PWM-controlled power switch regulating LED string current up to 10 A average.

Use Value: AEC-Q101 qualification ensures long-term reliability under outdoor thermal cycling (-40 °C to +85 °C ambient).

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
STL220N6F7AG	60 V V_DSS, 2.2 mΩ R_DS(on), PowerFLAT 8x8 package, R_thJC = 1.2 K/W	Limited to ≤60 V systems; lower R_DS(on) but higher thermal resistance reduces usable current at high T_c	Select when 60 V rating suffices and board space constraints favor smaller 8x8 mm footprint.
IRF1404ZLPbF	40 V V_DSS, 4.7 mΩ R_DS(on), TO-220AB package, R_thJC = 1.0 K/W, not AEC-Q101 qualified	Not suitable for 48 V automotive; lacks automotive qualification and has higher R_DS(on) at same V_GS	Consider only for cost-sensitive industrial 24 V non-automotive designs where qualification is not required.

Compared with STL220N6F7AG and IRF1404ZLPbF, the BUK7E4R0-80E,127 uniquely combines 80 V rating, 4.0 mΩ on-resistance, AEC-Q101 qualification, and SOT404 thermal performance-making it the only option validated for high-current 48 V automotive body electronics with minimal layout overhead.

Availability

BUK7E4R0-80E,127 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, server power supply OR-ing circuits, and high-power LED lighting requiring stable component supply and full traceability.

Supply support for BUK7E4R0-80E,127 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 high-performance discrete, logic, and MOSFET semiconductors, spun off from NXP in 2017 and headquartered in Nijmegen, Netherlands.

The BUK7E series is part of Nexperia's TrenchMOS automotive power portfolio, engineered specifically for robust, high-current switching in harsh-environment automotive and industrial applications where reliability, thermal performance, and qualification compliance are mandatory.

FAQ

What is the maximum continuous drain current rating for the BUK7E4R0-80E,127?

The BUK7E4R0-80E,127 is rated for 120 A continuous drain current at case temperature T_c = 25 °C, as specified in the official Nexperia datasheet revision dated 11 September 2012. Derating applies above 25 °C; at T_c = 100 °C, the maximum I_D drops to approximately 60 A due to thermal limits. This rating assumes proper PCB copper area and thermal interface to maintain junction temperature below 175 °C.

Is the BUK7E4R0-80E,127 suitable for 48 V automotive applications?

Yes, the BUK7E4R0-80E,127 is explicitly qualified for automotive use under AEC-Q101 and features an 80 V V_DSS rating-providing 67 % headroom above nominal 48 V systems. Its SOA, avalanche capability (E_AS = 420 mJ), and operating temperature range (−55 °C to +175 °C) meet stringent automotive requirements for body electronics, including load-dump and jump-start transient immunity.

What package type does the BUK7E4R0-80E,127 use, and how is thermal management achieved?

The BUK7E4R0-80E,127 uses the SOT404 (D2PAK) package, which is identical to TO-263. Thermal management relies on the exposed drain pad soldered directly to a large PCB copper pour or heatsink, achieving a junction-to-case thermal resistance (R_thJC) of 0.9 K/W. This enables effective heat extraction without additional mechanical fasteners, supporting >100 W power dissipation in well-designed layouts.

Does the BUK7E4R0-80E,127 require a gate driver IC?

No, the BUK7E4R0-80E,127 is a logic-level MOSFET with V_GS(th) spanning 1.0 V to 2.5 V and full enhancement at V_GS ≥ 4.5 V. It can be driven directly by 3.3 V or 5 V microcontroller GPIOs. However, for high-frequency PWM (>50 kHz) or high-current gate charging, a low-impedance driver improves switching speed and reduces losses-though not strictly required for basic on/off control.

What is the total gate charge (Q_g) specification for the BUK7E4R0-80E,127?

The BUK7E4R0-80E,127 has a typical total gate charge (Q_g) of 100 nC at V_GS = 10 V, as confirmed in the Nexperia datasheet. This value determines the energy required to switch the device and influences driver sizing and switching loss calculations. Q_g remains stable across temperature and is measured under standardized test conditions (V_DS = 40 V, I_D = 60 A).

BUK7E4R0-80E,127 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: TrenchMOS™

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 80 V

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

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

Rds On (Max) @ Id, Vgs:: 4mOhm @ 25A, 10V

Vgs(th) (Max) @ Id:: 4V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: 169 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 12030 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 349W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: I2PAK

BUK7E4R0-80E,127 FAQ

1.How can I place an order for BUK7E4R0-80E,127 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7E4R0-80E,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 BUK7E4R0-80E,127 reliable?

The price and inventory of BUK7E4R0-80E,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7E4R0-80E,127 is usually 5 days.

3.What payment methods are accepted for BUK7E4R0-80E,127?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7E4R0-80E,127 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7E4R0-80E,127?

BUK7E4R0-80E,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7E4R0-80E,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 BUK7E4R0-80E,127?

For technical support, including BUK7E4R0-80E,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7E4R0-80E,127 requirements.

6.How does Aetrix verify that BUK7E4R0-80E,127 is sourced from the original manufacturer or authorized distributors?

All BUK7E4R0-80E,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 BUK7E4R0-80E,127 meets industry standards.

7.What is the process for return or replacement of BUK7E4R0-80E,127?

All BUK7E4R0-80E,127 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7E4R0-80E,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 BUK7E4R0-80E,127 part is unused and in its original packaging.

Return procedure for BUK7E4R0-80E,127:

1.Submit a request within 90 days.

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

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