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

Nexperia USA Inc. BUK9M13-80LX

Name: BUK9M13-80LX
Brand: Nexperia USA Inc.
SKU: BUK9M13-80LX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9M13-80LX

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

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

Datasheet:: BUK9M13-80LX.pdf

Description:: BUK9M13-80L/SOT1210/MLFPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BUK9M13-80LX from Nexperia is an AEC-Q101-qualified N-channel logic-level MOSFET in LFPAK33 (SOT1210) package, rated for 80 V V_DS, 13 mΩ R_DS(on) at V_GS = 4.5 V and T_j = 25 °C, and 55 A continuous drain current at T_mb = 25 °C. It delivers soft body-diode recovery and side-wettable flanks for AOI-compatible solder joints, targeting high-reliability automotive power switching.

For engineers reviewing the BUK9M13-80LX datasheet, BUK9M13-80LX pinout, BUK9M13-80LX application, or BUK9M13-80LX equivalent, key selection criteria include its 175 °C junction rating, 1.4 K/W R_th(j-mb), avalanche energy rating of 68.6 mJ, and compatibility with 12 V/24 V/48 V automotive bus architectures.

Technical Context

This MOSFET uses Trench12 technology to achieve low R_DS(on) with logic-level gate drive (V_GS(th) = 1.4–2.05 V typ), enabling direct interface with 3.3 V and 5 V microcontrollers without level-shifting. Its optimized gate charge profile (Q_G(tot) = 34.2 nC typ at V_GS = 10 V) supports efficient PWM switching in motor and solenoid control.

The integrated source-drain diode exhibits 30.8 nC recovered charge (Q_r) and 44 ns reverse recovery time (t_rr) under IS = 25 A, dI_S/dt = −100 A/µs conditions - critical for minimizing switching losses and voltage spikes in inductive load circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	80 V maximum drain-source voltage - supports 48 V automotive systems with 66 % derating margin against transients.
R_DS(on)	10.6 mΩ typical at V_GS = 10 V, I_D = 15 A, T_j = 25 °C - enables <1.7 W conduction loss at 40 A DC.
I_D (cont)	55 A at T_mb = 25 °C - validated in application testing; limited by PCB thermal design in real systems.
Q_GD	3.8 nC typical - low gate-drain charge reduces Miller-induced switching delay and improves hard-switching robustness.
R_th(j-mb)	1.4 K/W typical - enables high-power dissipation with minimal junction-to-mounting-base temperature rise.
Avalanche E_AS	68.6 mJ non-repetitive - withstands unclamped inductive turn-off events up to 24.8 A at 80 V supply.
V_GS(th)	1.7 V typical at T_j = 25 °C - ensures full enhancement with 3.3 V logic drivers and stable operation down to −55 °C.

Pinout & Package

LFPAK33 (SOT1210) package features a copper mounting base connected to drain, three parallel source terminals, and a single gate terminal - optimized for low-inductance, high-current PCB layouts and automated optical inspection via side-wettable flanks.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Source (S)	Three paralleled source leads reduce package inductance and improve current sharing; electrically common.
4	Gate (G)	Single gate input with 2 Ω typical gate resistance - compatible with standard gate drivers without external series resistance.
Mounting Base (mb)	Drain (D)	Exposed copper drain pad provides primary thermal path to PCB; enables >90 W power handling with proper copper area.

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) ≤ 2.05 V max ensures reliable turn-on with 3.3 V MCU GPIOs and eliminates need for gate driver ICs.
Side-wettable flanks	Plated sidewalls on all four edges enable automated optical inspection of solder joint integrity - critical for automotive process validation.
Trench12 silicon technology	Delivers 13 mΩ R_DS(on) at 4.5 V drive while maintaining 175 °C AEC-Q101 qualification and low Q_G/Q_GD ratio.
Soft body-diode recovery	Q_r = 30.8 nC and t_rr = 44 ns minimize voltage overshoot and EMI during inductive turn-off in motor/solenoid drivers.

Applications

Transmission Control Module

LED Headlamp Driver

Use Scenario: High-side switching of 12 V solenoid actuators in automatic transmission valve bodies under under-hood temperatures up to 150 °C.

IC Role / Device Role / Timing Role: Power switch controlling hydraulic pressure via PWM at 1–20 kHz with precise duty-cycle resolution.

Use Value: 175 °C junction rating and 68.6 mJ avalanche capability prevent failure during load dump or coil flyback events.

Use Scenario: Low-side dimming of 48 V LED arrays in adaptive front lighting systems (AFS) with dynamic current regulation.

IC Role / Device Role / Timing Role: Synchronous buck converter high-side switch operating at 200–500 kHz with tight dead-time control.

Use Value: 10.6 mΩ R_DS(on) at 10 V drive minimizes conduction loss; soft diode recovery suppresses EMI in EMC-sensitive lighting modules.

Engine Start-Stop Solenoid

12 V Battery Protection Circuit

Use Scenario: Direct control of starter motor engagement solenoids in 12 V start-stop systems with frequent cold-cranking cycles.

IC Role / Device Role / Timing Role: High-current (≥40 A) pulsed switch activated for ≤500 ms per crank event, requiring robust SOA and thermal cycling resilience.

Use Value: 225 A peak drain current (IDM) and 1.4 K/W R_th(j-mb) ensure reliable cranking performance even after 10,000+ thermal cycles.

Use Scenario: Reverse-polarity and overcurrent protection in 12 V infotainment head units with hot-swap capability.

IC Role / Device Role / Timing Role: Low-side current-sense switch with fast fault response (<1 µs) and bidirectional blocking capability.

Use Value: 80 V V_DS rating accommodates load-dump transients; 0.87 V V_SD forward drop enables accurate current sensing across source resistors.

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 V_DS, 1.2 mΩ R_DS(on) at 10 V, PowerFLAT 5x6 package - lower voltage rating but superior on-resistance and thermal resistance (0.9 K/W).	Not suitable for 48 V systems or unclamped 80 V transients; requires redesign for higher-bus applications.	Select when operating strictly within 12 V/24 V domains and maximum efficiency at high current is prioritized over transient robustness.
ON Semiconductor NTMFS5C675NL	60 V V_DS, 1.35 mΩ R_DS(on) at 10 V, SO-8FL package - smaller footprint but no side-wettable flanks or AEC-Q101 at 175 °C.	Lacks automotive qualification for under-hood use; unsuitable for transmission or engine bay locations.	Choose only for non-automotive industrial or consumer applications where space is constrained and qualification is not required.

Compared with STL220N6F7 and NTMFS5C675NL, BUK9M13-80LX trades marginal on-resistance for guaranteed 80 V operation, full AEC-Q101 qualification at 175 °C, side-wettable flanks for process traceability, and proven avalanche ruggedness - making it the sole option for safety-critical 48 V automotive switching where reliability outweighs raw R_DS(on) optimization.

Availability

BUK9M13-80LX is available at Aetrix Electronics and suitable for automotive transmission control, LED headlamp drivers, engine start-stop solenoids, and 12 V battery protection circuits requiring stable component supply across extended temperature and lifetime requirements.

Supply support for BUK9M13-80LX 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 and advanced packaging.

The BUK9M13-80LX belongs to Nexperia's LFPAK33 automotive MOSFET family, engineered specifically for high-current, high-temperature switching in 12 V–48 V vehicle subsystems where AEC-Q101 compliance and solder-joint inspection are mandatory.

FAQ

What is the maximum continuous drain current for BUK9M13-80LX at 100 °C mounting base temperature?

The datasheet specifies 39 A continuous drain current at T_mb = 100 °C and V_GS = 10 V. This reflects thermal derating due to reduced heat transfer efficiency at elevated board temperatures, and aligns with Fig. 2 showing linear ID reduction above 25 °C T_mb.

Does BUK9M13-80LX support gate drive from a 3.3 V microcontroller without external level shifting?

Yes. With a typical V_GS(th) of 1.7 V and maximum of 2.05 V at 25 °C, the device fully enhances at 3.3 V gate drive. R_DS(on) is 14.7 mΩ typical at V_GS = 4.5 V and T_j = 25 °C, confirming strong conduction under 3.3 V–5 V logic levels.

How does the side-wettable flank feature impact manufacturing yield in automotive PCB assembly?

Side-wettable flanks allow automated optical inspection (AOI) to verify solder fillet formation on all four package edges - directly improving first-pass yield and reducing field returns in safety-critical automotive modules where manual visual inspection is impractical and X-ray is cost-prohibitive.

Can BUK9M13-80LX be used in synchronous rectification applications?

No. Its body diode has a forward voltage of 0.87 V at 25 A and 25 °C, and lacks the ultra-fast, low-Q_r characteristics required for high-efficiency synchronous rectification. It is designed for controlled switching, not freewheeling conduction.

BUK9M13-80LX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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:: 55A (Ta)

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

Rds On (Max) @ Id, Vgs:: 12.5mOhm @ 15A, 10V

Vgs(th) (Max) @ Id:: 2.05V @ 120µA

Gate Charge (Qg) (Max) @ Vgs:: 51.3 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 3341 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 91W (Ta)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: LFPAK33

BUK9M13-80LX FAQ

1.How can I place an order for BUK9M13-80LX through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9M13-80LX 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 BUK9M13-80LX reliable?

The price and inventory of BUK9M13-80LX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9M13-80LX is usually 5 days.

3.What payment methods are accepted for BUK9M13-80LX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9M13-80LX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9M13-80LX?

BUK9M13-80LX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9M13-80LX 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 BUK9M13-80LX?

For technical support, including BUK9M13-80LX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9M13-80LX requirements.

6.How does Aetrix verify that BUK9M13-80LX is sourced from the original manufacturer or authorized distributors?

All BUK9M13-80LX 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 BUK9M13-80LX meets industry standards.

7.What is the process for return or replacement of BUK9M13-80LX?

All BUK9M13-80LX units undergo pre-shipment inspection (PSI). If there is an issue with BUK9M13-80LX, 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 BUK9M13-80LX part is unused and in its original packaging.

Return procedure for BUK9M13-80LX:

1.Submit a request within 90 days.

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

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