Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BUK7215-55A,118

Name: BUK7215-55A,118
Brand: Nexperia USA Inc.
SKU: BUK7215-55A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BUK7215-55A,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: BUK7215-55A,118.pdf

Description:: MOSFET N-CH 55V 55A DPAK

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:56

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BUK7215-55A,118 from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS standard-level power MOSFET in DPAK (SOT428) package, rated for 55 V V_DS, 62 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature. It delivers low R_DS(on) of 13 mΩ (typ.) at V_GS = 10 V and ID = 25 A, enabling efficient 12 V/24 V automotive load switching in thermally demanding environments.

For engineers reviewing the BUK7215-55A datasheet, BUK7215-55A pinout, BUK7215-55A application, or BUK7215-55A equivalent, this device is selected for high-reliability automotive power switching where gate-drive compatibility with standard 10 V logic, avalanche ruggedness (211 mJ), and thermal robustness are critical design requirements.

Technical Context

This MOSFET employs TrenchMOS technology to achieve low conduction losses and stable threshold voltage across temperature (V_GS(th) = 2–4 V at 25 °C, down to 1 V at 175 °C). Its mounting base (pin 3) is electrically connected to the drain, enabling direct thermal coupling to heatsinks while defining a fixed high-side or low-side configuration depending on PCB layout.

Dynamic performance includes Q_GD = 19 nC and C_iss = 1580–2107 pF, supporting fast switching in motor and solenoid drive circuits. The integrated source-drain diode exhibits V_SD = 0.85–1.2 V and t_rr = 48 ns, suitable for freewheeling in inductive loads without external diodes.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V maximum - supports 24 V automotive systems with ≥2× voltage margin against transients.
R_DS(on)	13 mΩ typ. at V_GS = 10 V, I_D = 25 A, T_j = 25 °C - enables <1.6 W conduction loss at 32 A, reducing heatsink size.
I_D (cont)	62 A at T_mb = 25 °C - rated for high-current 12 V starter relays or HVAC blower motors.
E_AS	211 mJ non-repetitive avalanche energy - withstands unclamped inductive turn-off events in solenoid and fuel injector drivers.
R_th(j-mb)	1.3 K/W - allows ~88 W dissipation with 115 °C ΔT to mounting base, supporting compact thermal design.
V_GS(th)	2–4 V at 25 °C - ensures reliable turn-on with standard 5 V or 3.3 V logic-level gate drivers via level-shifting or buffer stages.
Q_GD	19 nC - determines Miller plateau duration and influences switching speed and gate driver sizing in PWM applications.

Pinout & Package

Package: DPAK (SOT428), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) is integral to the drain terminal and provides primary thermal path.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Controls channel conduction; requires ≤20 V absolute max rating; threshold voltage defined at 1 mA ID.
2 (D)	Drain	Main high-side current path; electrically tied to mounting base (pin 3) - must be isolated from PCB ground if used in low-side configuration.
3 (S)	Source	Reference node for gate drive and current sensing; also serves as cathode of integrated body diode.
Mounting Base (mb)	Drain Thermal & Electrical Node	Electrically connected to drain (pin 2); provides low-impedance thermal interface to heatsink or copper pour; not electrically isolated.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive safety-critical applications including engine control, lighting, and chassis systems.
175 °C junction rating	Enables operation in under-hood environments without derating in ambient up to 125 °C when properly heatsinked.
Low R_DS(on) with standard gate drive	13 mΩ at V_GS = 10 V eliminates need for specialized gate drivers in 12 V/24 V systems.
Integrated avalanche energy rating	211 mJ E_AS allows safe operation in inductive switching without external snubbers in many solenoid/motor cases.
Thermally optimized DPAK package	R_th(j-mb) = 1.3 K/W enables >85 W usable power dissipation with modest heatsinking - superior to TO-220 in space-constrained layouts.

Applications

Automotive Lighting Control

Fuel Injector Driver

Use Scenario: Switching 12 V halogen or LED headlamp modules in modern vehicle lighting systems with PWM dimming and short-circuit protection.

IC Role / Device Role / Timing Role: Low-side power switch handling up to 15 A steady-state current and 248 A peak during inrush; operates in hard-switched mode with <100 ns rise/fall times.

Use Value: 13 mΩ R_DS(on) limits self-heating to <3 W at full load, enabling compact PCB-mount design without forced air cooling.

Use Scenario: Driving 12 V multi-point fuel injectors requiring precise 1–5 ms pulse-width control and high reliability over 10+ year service life.

IC Role / Device Role / Timing Role: High-speed, avalanche-rated switch managing inductive kickback during turn-off; handles repetitive 211 mJ energy pulses without degradation.

Use Value: Confirmed AEC-Q101 qualification and 175 °C rating ensure long-term stability in engine bay temperatures exceeding 120 °C ambient.

HVAC Blower Motor Control

Transmission Solenoid Actuation

Use Scenario: Controlling brushed DC blower motors in automotive climate control systems using variable duty-cycle PWM at 20 kHz.

IC Role / Device Role / Timing Role: Main power stage delivering up to 62 A continuous current; gate charge (Q_G(tot) = 50 nC) compatible with standard 1 A gate drivers.

Use Value: Low Q_GD/Q_G ratio improves controllability during Miller plateau, reducing shoot-through risk in half-bridge configurations.

Use Scenario: Energizing 24 V transmission pressure control solenoids requiring fast, repeatable actuation with minimal thermal drift.

IC Role / Device Role / Timing Role: Robust high-side or low-side switch with V_GS(th) stability from −55 °C to 175 °C ensuring cold-start reliability.

Use Value: 30 mΩ R_DS(on) at 175 °C maintains <2.5 W conduction loss at 25 A, preventing thermal runaway during sustained gear-shift cycles.

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
STL220N4LF6AG	40 V V_DS, 220 A I_D, 1.2 mΩ R_DS(on), PowerFLAT 5x6 package - higher current, lower voltage, no mounting base.	Not suitable for 55 V transient-prone 24 V systems; better for 12 V battery-supplied high-current actuators only.	Select only if system V_DS stress remains <36 V and board space permits larger footprint.
IRF1405PBF	55 V V_DS, 169 A I_D, 5.3 mΩ R_DS(on), TO-220AB - higher R_DS(on) than BUK7215-55A at same V_GS, no AEC-Q101 rating.	Lacks automotive qualification and specified avalanche energy; requires external heatsink and derating for under-hood use.	Acceptable for industrial 24 V motor drives but not for OEM automotive ECUs requiring AEC compliance.

Compared with STL220N4LF6AG and IRF1405PBF, the BUK7215-55A uniquely balances 55 V rating, AEC-Q101 qualification, 13 mΩ conduction loss, and DPAK thermal efficiency - making it the only option qualified for direct replacement in production automotive power distribution modules.

Availability

BUK7215-55A,118 is available at Aetrix Electronics and suitable for automotive lighting control, fuel injector driving, HVAC blower motor regulation, and transmission solenoid actuation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BUK7215-55A,118 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, logic, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging.

The BUK7215-55A belongs to Nexperia's TrenchMOS automotive power MOSFET family, engineered specifically for robust, thermally efficient switching in 12 V/24 V automotive subsystems where AEC-Q101 compliance and avalanche ruggedness are mandatory.

FAQ

Is BUK7215-55A,118 suitable for high-side switching configurations?

Yes - its DPAK package features a mounting base electrically connected to the drain (pin 2), enabling direct high-side implementation when the base is tied to the positive rail. Gate drive must be referenced to the source (pin 3), requiring a floating or level-shifted driver. Layout must isolate the source pad from the heatsink to prevent shorting.

What is the maximum allowable gate-source voltage for reliable operation?

The absolute maximum V_GS is ±20 V per datasheet limiting values. For reliable long-term operation, gate drive should be limited to 10 V to ensure optimal R_DS(on) while avoiding oxide stress; exceeding 15 V increases leakage and accelerates threshold voltage shift over time, especially at elevated temperatures.

How does the 175 °C junction rating impact PCB layout and thermal design?

The 175 °C rating allows operation at higher ambient temperatures, but thermal design must maintain T_j ≤175 °C. With R_th(j-mb) = 1.3 K/W, a 100 °C ΔT to mounting base supports ~77 W dissipation. PCB layout must maximize copper area under the mounting base and avoid thermal vias to inner layers that compromise thermal resistance to the heatsink.

Can BUK7215-55A,118 replace older BUK7215-55B variants in existing designs?

Yes - the BUK7215-55A and BUK7215-55B share identical pinout, package, and electrical specifications per Nexperia documentation. The 'A' suffix denotes a later revision with updated test methodology and minor process enhancements, but no functional or parametric differences affect drop-in replacement in qualified automotive applications.

BUK7215-55A,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

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:: 55A (Tc)

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

Rds On (Max) @ Id, Vgs:: 15mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 50 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2107 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 115W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

BUK7215-55A,118 FAQ

1.How can I place an order for BUK7215-55A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7215-55A,118 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 BUK7215-55A,118 reliable?

The price and inventory of BUK7215-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7215-55A,118 is usually 5 days.

3.What payment methods are accepted for BUK7215-55A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7215-55A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7215-55A,118?

BUK7215-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7215-55A,118 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 BUK7215-55A,118?

For technical support, including BUK7215-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7215-55A,118 requirements.

6.How does Aetrix verify that BUK7215-55A,118 is sourced from the original manufacturer or authorized distributors?

All BUK7215-55A,118 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 BUK7215-55A,118 meets industry standards.

7.What is the process for return or replacement of BUK7215-55A,118?

All BUK7215-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7215-55A,118, 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 BUK7215-55A,118 part is unused and in its original packaging.

Return procedure for BUK7215-55A,118:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…