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

Nexperia USA Inc. BUK7M27-80EX

Name: BUK7M27-80EX
Brand: Nexperia USA Inc.
SKU: BUK7M27-80EX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK7M27-80EX

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: SOT-1210, 8-LFPAK33 (5-Lead)

Datasheet:: BUK7M27-80EX.pdf

Description:: MOSFET N-CH 80V 30A LFPAK33

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Product details

Overview

BUK7M27-80EX from Nexperia is an AEC-Q101-qualified N-channel standard-level MOSFET in LFPAK33 (SOT1210) package, rated for 80 V V_DS, 27 mΩ R_DS(on) at 10 V V_GS and 25 °C, and 175 °C junction operation. It delivers 30 A continuous drain current at T_mb = 25 °C and supports repetitive avalanche energy up to 28.3 mJ, targeting high-reliability automotive power switching.

For engineers reviewing the BUK7M27-80EX datasheet, BUK7M27-80EX pinout, BUK7M27-80EX application, or BUK7M27-80EX equivalent, this device is selected for thermally demanding 12 V/24 V/48 V automotive systems where gate drive simplicity (standard-level V_GS(th) > 1 V at 175 °C), low conduction loss, and ruggedness against unclamped inductive switching are critical.

Technical Context

This MOSFET uses TrenchMOS technology and features a true standard-level gate with V_GS(th) ≥ 1 V at 175 °C, enabling direct drive from 3.3 V or 5 V microcontrollers without level-shifting. Its LFPAK33 package integrates a thermally optimized mounting base connected to drain, delivering R_th(j-mb) = 2.01 K/W for efficient heat transfer to PCB copper or heatsink.

The device is characterized for repetitive avalanche operation and exhibits low dynamic parameters: Q_GD = 6.2 nC, C_iss = 982 pF (typ), and fast switching with t_d(on) = 5.6 ns and t_f = 8.7 ns under defined test conditions. Its source-drain diode has V_SD = 0.8–1.2 V at 5 A and t_rr = 21.6 ns, supporting synchronous rectification and freewheeling roles.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	80 V maximum - supports 48 V automotive bus with 66 % derating margin against transients.
R_DS(on)	22–27 mΩ at V_GS = 10 V, I_D = 5 A, T_j = 25 °C - enables <1 W conduction loss at 5 A.
I_D (cont)	30 A at T_mb = 25 °C - usable up to 21.3 A at T_mb = 100 °C per derating curve.
E_AS	28.3 mJ non-repetitive avalanche energy - withstands unclamped inductive turn-off events in motor/solenoid drivers.
T_j max	175 °C - qualified for under-hood automotive environments without thermal throttling.
Q_GD	6.2 nC - low gate-drain charge reduces Miller-induced switching instability in hard-switched topologies.
R_th(j-mb)	2.01 K/W typical - enables >30 W power dissipation with 60 K temperature rise from mounting base.

Pinout & Package

LFPAK33 (SOT1210) is a surface-mount, 8-lead plastic package with integrated copper mounting base (drain-connected) for enhanced thermal performance and mechanical robustness in automotive vibration environments.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Source (S)	Three parallel source terminals reduce bond-wire inductance and improve current sharing in high-di/dt applications.
4	Gate (G)	Single gate input with 19.5 nC total gate charge - compatible with standard logic-level drivers.
Mounting Base (mb)	Drain (D)	Exposed copper pad electrically and thermally connected to drain - requires PCB copper pour for thermal management and electrical isolation from other nets.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive use including temperature cycling, HTRB, and ESD testing - eliminates need for additional qualification effort.
Repetitive avalanche rating	Rated for repeated unclamped inductive switching - enables robust design in transmission control and solenoid drivers without external snubbers.
Standard-level gate threshold	V_GS(th) > 1 V at 175 °C - ensures reliable turn-on with 3.3 V or 5 V MCU outputs across full temperature range.
175 °C junction rating	Full specification maintained up to T_j = 175 °C - supports placement near heat sources (e.g., engine bay ECUs).
Low R_DS(on) × Q_G figure of merit	27 mΩ × 19.5 nC = 526.5 mΩ·nC - balances conduction and switching losses in 10–100 kHz automotive SMPS and motor drives.

Applications

Transmission Control Module

Engine Cooling Fan Driver

Use Scenario: PWM-controlled 24 V DC brushless fan actuation in engine bay with ambient temperatures up to 125 °C.

IC Role / Device Role / Timing Role: High-side or low-side power switch managing 15 A peak load with 20 kHz PWM frequency.

Use Value: 27 mΩ R_DS(on) limits conduction loss to <6 W at 15 A; 175 °C rating avoids thermal shutdown during sustained high-load operation.

Use Scenario: Solid-state relay replacement in automatic transmission solenoid control, switching 12 V/3 A loads with 100 ms on-time.

IC Role / Device Role / Timing Role: Low-side switch driving inductive solenoid with flyback energy absorption via internal body diode.

Use Value: Repetitive avalanche capability handles 28.3 mJ per event; V_GS(th) > 1 V at 175 °C ensures turn-on even during hot soak conditions.

48 V Mild Hybrid Starter Generator

LED Headlamp Matrix Switch

Use Scenario: High-current phase-leg switch in 48 V starter-generator inverter, operating at 10 kHz with 30 A RMS current.

IC Role / Device Role / Timing Role: N-channel power switch in half-bridge topology with gate driver IC providing 10 V gate voltage.

Use Value: LFPAK33's 2.01 K/W R_th(j-mb) enables effective thermal coupling to heatsink; low Q_GD suppresses shoot-through risk during fast transitions.

Use Scenario: Individual pixel control in adaptive LED headlamps, switching 40 V/2 A strings with 100 µs pulse width modulation.

IC Role / Device Role / Timing Role: Low-side current sink for segmented LED arrays requiring precise current regulation and fast turn-off.

Use Value: 8.7 ns fall time and 13.5 ns turn-off delay support sub-100 µs PWM resolution; 80 V rating accommodates LED string transient surges.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4LF8AG	80 V, 2.2 mΩ R_DS(on), PowerFLAT 5x6 - lower R_DS(on) but higher Q_G (55 nC) and no AEC-Q101 documentation in public datasheet.	Preferred for ultra-low-loss 48 V battery disconnect; less suitable for space-constrained layouts due to larger footprint.	Select when conduction loss dominates and board area allows larger package; verify AEC-Q101 status directly with STMicroelectronics.
ON Semiconductor NTMFS5C675NL	60 V, 3.1 mΩ R_DS(on), SO-8FL - lower voltage rating, smaller package, but not qualified to AEC-Q101.	Suitable for 12 V/24 V auxiliary systems only; not recommended for 48 V or safety-critical functions.	Use only in non-safety-critical 24 V subsystems where cost and size outweigh qualification requirements.

Compared with STL220N4LF8AG and NTMFS5C675NL, BUK7M27-80EX uniquely balances AEC-Q101 compliance, 80 V rating, and LFPAK33's thermal efficiency-making it optimal for production automotive modules where qualification, voltage margin, and thermal reliability are jointly mandated.

Availability

BUK7M27-80EX is available at Aetrix Electronics and suitable for automotive transmission control, engine cooling fan drivers, and 48 V mild hybrid power stages requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for BUK7M27-80EX 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified MOSFETs, ESD protection, and logic solutions.

BUK7M27-80EX belongs to Nexperia's Automotive Logic and Power portfolio, designed specifically for AEC-Q101-compliant power switching in harsh-environment vehicle systems-from body electronics to powertrain actuators.

FAQ

Is BUK7M27-80EX pin-compatible with other LFPAK33 MOSFETs?

Yes - all LFPAK33 (SOT1210) MOSFETs share identical mechanical footprint and terminal layout: pins 1–3 = Source, pin 4 = Gate, mounting base = Drain. This enables drop-in replacement within the same package family, provided voltage, current, and thermal requirements align.

What is the maximum safe operating temperature for the mounting base?

The mounting base (T_mb) must not exceed 100 °C for continuous 30 A operation, per Figure 2 in the datasheet. At T_mb = 100 °C, continuous drain current is derated to 21.3 A. Exceeding 100 °C risks exceeding the 175 °C junction limit under load.

Does BUK7M27-80EX require a gate resistor for automotive PWM switching?

A gate resistor is recommended: 5 Ω external resistance is used in the datasheet's switching time measurements (e.g., t_f = 8.7 ns). This value balances EMI suppression and switching speed; values below 2 Ω increase dV/dt stress and risk oscillation, while above 10 Ω slows turn-off and raises switching loss.

Can the internal body diode be used for freewheeling in inductive loads?

Yes - the source-drain diode is rated for 30 A continuous and 121 A pulsed current, with V_SD = 0.8–1.2 V at 5 A and t_rr = 21.6 ns. It supports freewheeling in solenoid and motor control, though external Schottky diodes may be added for faster recovery in high-frequency designs.

BUK7M27-80EX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: SOT-1210, 8-LFPAK33 (5-Lead)

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 80 V

Current - Continuous Drain (Id) @ 25°C:: 30A (Tc)

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

Rds On (Max) @ Id, Vgs:: 27mOhm @ 5A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 19.5 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1306 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 62W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: LFPAK33

BUK7M27-80EX FAQ

1.How can I place an order for BUK7M27-80EX through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7M27-80EX 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 BUK7M27-80EX reliable?

The price and inventory of BUK7M27-80EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7M27-80EX is usually 5 days.

3.What payment methods are accepted for BUK7M27-80EX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7M27-80EX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7M27-80EX?

BUK7M27-80EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7M27-80EX 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 BUK7M27-80EX?

For technical support, including BUK7M27-80EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7M27-80EX requirements.

6.How does Aetrix verify that BUK7M27-80EX is sourced from the original manufacturer or authorized distributors?

All BUK7M27-80EX 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 BUK7M27-80EX meets industry standards.

7.What is the process for return or replacement of BUK7M27-80EX?

All BUK7M27-80EX units undergo pre-shipment inspection (PSI). If there is an issue with BUK7M27-80EX, 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 BUK7M27-80EX part is unused and in its original packaging.

Return procedure for BUK7M27-80EX:

1.Submit a request within 90 days.

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

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