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

Nexperia USA Inc. BUK9880-55,135

Name: BUK9880-55,135
Brand: Nexperia USA Inc.
SKU: BUK9880-55,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK9880-55,135

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: BUK9880-55,135.pdf

Description:: MOSFET N-CH 55V 7.5A SOT223

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Product details

Overview

BUK9880-55 from NXP Semiconductors is an AEC-Q101 qualified N-channel TrenchMOS logic-level power MOSFET in SOT223 (SC-73) package, rated for 55 V drain-source voltage, 7.5 A continuous drain current at 25 °C, 65–80 mΩ R_DS(on) at V_GS = 5 V and T_j = 25 °C, and 30 mJ unclamped avalanche energy - designed for automotive body control modules requiring robust, low-threshold switching.

For engineers reviewing the BUK9880-55 datasheet, BUK9880-55 pinout, BUK9880-55 application, or BUK9880-55 equivalent, this part supports design validation of 12 V automotive load switches with integrated ESD protection, thermal derating analysis via R_th(j-sp) = 12–15 K/W, and gate-drive compatibility with 5 V microcontrollers without level-shifting.

Technical Context

This device employs TrenchMOS technology to achieve low on-resistance and high electrostatic robustness (2 kV HBM), enabling direct interface with 5 V logic controllers in automotive power distribution networks. Its dual-drain pin configuration (Pins 2 & 4) enhances thermal conduction through the heatsink pad.

The MOSFET features a built-in source-drain diode with V_SD = 0.85–1.1 V at I_S = 5 A and T_j = 25–150 °C, and exhibits dynamic parameters including C_iss = 500–650 pF, t_r = 30–50 ns, and Q_G ≈ 10–12 nC at V_DS = 44 V - supporting efficient PWM operation up to 100 kHz in DC-DC and motor drive stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V maximum - supports 12 V automotive systems with ≥3× supply margin against load-dump transients.
I_D (continuous)	7.5 A at T_sp = 25 °C - enables 60 W resistive load switching on standard PCB copper areas.
R_DS(on)	65–80 mΩ at V_GS = 5 V, I_D = 5 A, T_j = 25 °C - limits conduction loss to ≤2 W at 7.5 A.
E_AS	30 mJ non-repetitive avalanche energy - sustains inductive kickback from solenoids and relays without clamping circuitry.
R_th(j-sp)	12–15 K/W junction-to-solder-point - allows direct thermal modeling using solder point temperature instead of ambient.
V_GS(th)	0.6–2.3 V threshold range across -55 to 150 °C - ensures reliable turn-on with 3.3 V/5 V MCU outputs under full temperature range.
C_iss	500–650 pF input capacitance - determines gate drive strength requirement (~10 mA peak for 100 ns switching).

Pinout & Package

SOT223 (SC-73) plastic surface-mounted package with increased heatsink area; 4 leads, lead-free and RoHS compliant. Exposed drain pad (Pins 2 & 4) serves as primary thermal path and electrical connection.

Pin/Terminal	Circuit Role	Design Meaning
1	G (Gate)	Control terminal; accepts 5 V logic-level drive; 2 kV HBM ESD rating eliminates need for external protection.
2	D (Drain)	Main power output node; electrically and thermally connected to exposed heatsink pad.
3	S (Source)	Reference node for gate drive and current sensing; tied to system ground in high-side switch configurations.
4	D (Drain)	Second drain connection - parallel path to Pin 2, reducing package inductance and improving thermal spreading.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood applications per stress test requirements including temperature cycling, HTRB, and UHAST.
Logic-level gate drive	V_GS(th) ≤ 2.3 V at -55 °C ensures guaranteed turn-on with 3.3 V or 5 V microcontrollers across full automotive temperature range.
Integrated ESD protection	2 kV HBM rating eliminates need for external TVS diodes in typical board-level ESD environments (IEC 61000-4-2 Level 2).
Low R_DS(on) × Q_G figure-of-merit	~500 mΩ·nC - balances conduction and switching losses for 10–100 kHz PWM in body electronics loads.
Enhanced avalanche ruggedness	30 mJ single-pulse capability supports inductive load interruption without snubber networks in door lock or mirror actuator circuits.

Applications

Automotive Body Control Module

LED Headlamp Driver

Use Scenario: Switching 12 V power to window lift motors, seat adjusters, and HVAC actuators in centralized body controller units.

IC Role / Device Role / Timing Role: Low-side power switch controlled by 5 V CAN/LIN microcontroller GPIOs; operates in DC or slow PWM mode (<10 Hz).

Use Value: Eliminates external level shifters and reduces BOM count by integrating ESD protection and robust avalanche handling for motor stall conditions.

Use Scenario: High-side current regulation for adaptive LED headlamps with dimming and fault reporting.

IC Role / Device Role / Timing Role: Constant-current switch in linear or PWM-controlled LED string driver; handles 3–5 A steady-state current.

Use Value: 65 mΩ R_DS(on) limits self-heating to <1.5 W at 5 A, enabling compact heatsinkless designs on multilayer automotive PCBs.

Engine Bay Fan Controller

Smart Fuse Replacement

Use Scenario: Controlling radiator cooling fans subjected to high ambient temperatures (>105 °C) and voltage transients.

IC Role / Device Role / Timing Role: High-current (7 A) switching element with thermal foldback via solder-point temperature monitoring.

Use Value: R_th(j-sp) = 12 K/W enables accurate junction temperature estimation from measured PCB pad temperature, supporting real-time derating.

Use Scenario: Solid-state replacement for blade fuses in 12 V power distribution units with diagnostic feedback.

IC Role / Device Role / Timing Role: Current-limiting switch with overcurrent detection via V_DS sensing; responds within 10 µs to short-circuit events.

Use Value: 40 A pulsed drain current (I_DM) and 30 mJ avalanche energy allow safe interruption of inrush currents during hot-plug events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL130N5LF5	55 V, 130 A, TO-220FP package; R_DS(on) = 4.5 mΩ @ 10 V - requires 10 V gate drive, not logic-level compatible.	Designed for high-current industrial inverters; unsuitable for 5 V MCU interfaces without gate driver.	Select only if higher current capacity and external gate driver are available; not drop-in for BUK9880-55.
ON Semiconductor NTMFS5C670NL	60 V, 100 A, PowerTrench®; R_DS(on) = 5.2 mΩ @ 10 V; logic-level version (NTMFS5C670NLT1G) has 6.7 mΩ @ 4.5 V.	Higher current rating and lower R_DS(on), but larger SO-8FL package lacks integrated heatsink pad.	Prefer for space-constrained PCBs needing <6 mΩ, but verify thermal performance without SOT223's solder-pad conduction path.

Compared with STL130N5LF5 and NTMFS5C670NL, the BUK9880-55 uniquely combines AEC-Q101 qualification, true 5 V logic-level operation, SOT223 thermal efficiency, and integrated ESD protection - making it optimal for cost-sensitive, thermally constrained automotive body electronics where gate drive simplicity and reliability are critical.

Availability

BUK9880-55 is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting drivers, engine bay fan controllers, and smart fuse replacements requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BUK9880-55 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The BUK9880-55 belongs to NXP's TrenchMOS logic-level power MOSFET product line, engineered specifically for automotive power distribution systems requiring AEC-Q101 compliance, low gate drive voltage, and high avalanche ruggedness.

FAQ

Is BUK9880-55 suitable for high-side switching configurations?

Yes - its 10 V maximum gate-source voltage rating and low V_GS(th) enable use in high-side configurations with bootstrap or charge-pump gate drivers. The dual-drain SOT223 package provides low-inductance source return paths essential for stable high-side operation in 12 V automotive systems.

What is the maximum allowable solder point temperature for continuous operation?

The datasheet specifies normalized power dissipation curves showing 100% P_tot at T_sp = 25 °C, dropping to ~40% at T_sp = 100 °C (Fig. 4). Continuous operation is supported up to T_sp = 100 °C, beyond which derating is required; absolute max T_sp is not defined, but junction temperature must remain ≤150 °C.

Does BUK9880-55 include a body diode, and what are its key parameters?

Yes - it integrates a source-drain diode with forward voltage V_SD = 0.85–1.1 V at I_S = 5 A and reverse recovery time t_rr = 38 ns. This enables freewheeling in inductive loads and supports synchronous rectification in low-frequency DC-DC converters.

Can BUK9880-55 replace older MOSFETs like BUZ70 in automotive designs?

Yes - with identical SOT223 footprint and improved specs: lower R_DS(on) (65 mΩ vs. 140 mΩ), AEC-Q101 qualification (vs. commercial grade), and enhanced ESD robustness (2 kV vs. unspecified). No layout change is needed, but gate drive timing should be verified due to higher C_iss.

BUK9880-55,135 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 7.5A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 5V

Rds On (Max) @ Id, Vgs:: 80mOhm @ 5A, 5V

Vgs(th) (Max) @ Id:: 2V @ 1mA

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

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 650 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 8.3W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BUK9880-55,135 FAQ

1.How can I place an order for BUK9880-55,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9880-55,135 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 BUK9880-55,135 reliable?

The price and inventory of BUK9880-55,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9880-55,135 is usually 5 days.

3.What payment methods are accepted for BUK9880-55,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9880-55,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9880-55,135?

BUK9880-55,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9880-55,135 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 BUK9880-55,135?

For technical support, including BUK9880-55,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9880-55,135 requirements.

6.How does Aetrix verify that BUK9880-55,135 is sourced from the original manufacturer or authorized distributors?

All BUK9880-55,135 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 BUK9880-55,135 meets industry standards.

7.What is the process for return or replacement of BUK9880-55,135?

All BUK9880-55,135 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9880-55,135, 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 BUK9880-55,135 part is unused and in its original packaging.

Return procedure for BUK9880-55,135:

1.Submit a request within 90 days.

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

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