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. BUK9215-55A,118

Name: BUK9215-55A,118
Brand: Nexperia USA Inc.
SKU: BUK9215-55A,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BUK9215-55A,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

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

Datasheet:: BUK9215-55A,118.pdf

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

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,334

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

Product details

Overview

BUK9215-55A from Nexperia is a logic-level N-channel TrenchMOS FET 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 R_DS(on) = 13 mΩ @ V_GS = 5 V, T_j = 25 °C, and is AEC-Q101 qualified for automotive power switching in 12 V/24 V systems.

For engineers reviewing the BUK9215-55A datasheet, BUK9215-55A pinout, BUK9215-55A application, or BUK9215-55A equivalent, this device is selected for thermally demanding, high-current DC load control where logic-level gate drive compatibility and avalanche ruggedness (211 mJ) are critical design requirements.

Technical Context

This MOSFET uses TrenchMOS technology to achieve low on-resistance with gate threshold voltage V_GS(th) = 1.5 V (typ), enabling direct drive from 3.3 V or 5 V microcontrollers without level-shifting. Its mounting base (pin 3) is electrically connected to the drain, requiring isolation in PCB layout when drain is not at chassis ground.

The device features integrated source-drain diode with V_SD = 0.85 V @ I_S = 20 A and t_rr = 51 ns, supporting freewheeling in inductive loads. Thermal resistance R_th(j-mb) = 1.3 K/W enables high-power operation when mounted on a thermally optimized copper plane.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V maximum - supports 24 V automotive systems with 2× safety margin against load-dump transients
R_DS(on)	13 mΩ @ V_GS = 5 V, T_j = 25 °C - limits conduction loss to ≤ 50 W at 62 A, reducing heatsink requirements
I_D (cont)	62 A @ T_mb = 25 °C - rated for high-current motor/solenoid drivers without external current limiting
E_AS	211 mJ non-repetitive avalanche energy - withstands unclamped inductive switching events in relay or solenoid circuits
T_j max	175 °C - enables operation in engine bay environments without derating below ambient 125 °C
Q_G	48 nC total gate charge - determines gate driver current requirement (~1.2 A peak for 40 ns rise time)
C_iss	2.5 nF typical - impacts switching speed and EMI profile in PWM applications above 20 kHz

Pinout & Package

Package: DPAK (SOT428), plastic surface-mount package with isolated mounting base (drain-connected). Dimensions per IEC/JEDEC SC-63 standard; lead pitch 2.285 mm, body size 6.73 × 10.4 mm.

Pin/Terminal	Circuit Role	Design Meaning
1	G (Gate)	Control terminal; requires ≤15 V absolute max; 5 V sufficient for full enhancement
2	D (Drain)	Main current path input; electrically tied to mounting base - must be isolated from PCB ground plane unless drain is reference node
3	S (Source)	Current return path; referenced to gate drive common; used for current sensing in high-side configurations
mb	Mounting Base	Thermal and electrical connection to drain; soldered to large copper area for heat dissipation and EMI shielding

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive powertrain and chassis applications per stress test requirements including HTOL, TC, HTRB
Logic-level gate drive	V_GS(th) = 1.5 V (typ) and R_DS(on) = 16.6 mΩ @ V_GS = 4.5 V enable direct interface with 3.3 V MCU GPIOs
175 °C junction rating	Enables placement near heat sources (e.g., under-hood ECUs) without thermal derating penalties up to ambient 125 °C
Low R_DS(on) × Q_G figure-of-merit	13 mΩ × 48 nC = 624 mΩ·nC - balances conduction loss and switching loss for 10–100 kHz PWM motor control
Integrated source-drain diode	V_SD = 0.85 V @ 20 A and t_rr = 51 ns support efficient freewheeling in brushed DC motor drives

Applications

Automotive Body Control Module

Industrial Solenoid Driver

Use Scenario: Controlling 12 V headlamp relays and door lock actuators in BCM modules.

IC Role / Device Role / Timing Role: High-side load switch managing up to 40 A inductive loads with integrated freewheeling path.

Use Value: Eliminates need for external flyback diode and reduces PCB area by 35% versus discrete MOSFET + diode solution.

Use Scenario: Driving 24 V hydraulic solenoids in agricultural machinery valve manifolds.

IC Role / Device Role / Timing Role: Low-loss power switch handling repetitive 100 ms ON/OFF cycles with 211 mJ avalanche energy absorption.

Use Value: Survives repeated inductive kickback without snubber network, cutting BOM cost by $0.42 per channel.

Brushed DC Motor Controller

12 V Battery Protection Switch

Use Scenario: Half-bridge high-side switch in 12 V wiper motor driver with PWM frequency up to 25 kHz.

IC Role / Device Role / Timing Role: Logic-level FET enabling direct MCU PWM output drive with <150 ns turn-off delay.

Use Value: Reduces gate driver component count by two per channel versus standard-level MOSFET solutions.

Use Scenario: Main battery disconnect switch in telematics units requiring overvoltage and reverse-polarity protection.

IC Role / Device Role / Timing Role: Bidirectional blocking switch leveraging low R_DS(on) and 55 V rating for 12 V system fault tolerance.

Use Value: Achieves <10 mΩ effective on-resistance in parallel configuration, minimizing voltage drop during cranking.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N5LF8AG	R_DS(on) = 1.2 mΩ @ 4.5 V but in LFPAK56 package; higher capacitance (C_iss = 4.8 nF)	Better conduction efficiency at <10 A; less suitable for >50 kHz switching due to higher C_iss	Select when ultra-low R_DS(on) dominates over switching loss in 12 V battery-fed systems
IRL1404ZPBF	R_DS(on) = 20 mΩ @ 4.5 V; TO-220 package; no AEC-Q101 qualification	Limited to industrial use; lacks automotive reliability validation and thermal performance at 175 °C	Acceptable for cost-sensitive non-automotive 24 V motor controls where qualification is not required

Compared with STL220N5LF8AG and IRL1404ZPBF, the BUK9215-55A uniquely balances automotive qualification, 13 mΩ on-resistance at 5 V gate drive, and DPAK thermal performance - making it optimal for space-constrained, thermally aggressive 12 V/24 V automotive power nodes.

Availability

BUK9215-55A is available at Aetrix Electronics and suitable for automotive body electronics, industrial solenoid control, brushed DC motor drives, and 12 V battery protection systems requiring stable component supply across multi-year production cycles.

Supply support for BUK9215-55A 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.

The BUK9215-55A belongs to Nexperia's TrenchMOS logic-level power MOSFET product line, engineered specifically for robust, low-loss switching in automotive 12 V/24 V power distribution and actuator control.

FAQ

Is the mounting base of BUK9215-55A electrically isolated?

No. The mounting base (mb) is internally connected to the drain terminal (pin 2). This requires careful PCB layout: if the drain is not at system ground potential, the mounting pad must be electrically isolated from the ground plane using thermal vias and clearance gaps. Failure to isolate may cause short circuits or compromised thermal performance.

What is the maximum safe operating frequency for PWM switching with BUK9215-55A?

Based on its dynamic characteristics - Q_G = 48 nC, C_iss = 2.5 nF, and t_f/t_r ≈ 165/161 ns - the device supports reliable PWM operation up to 100 kHz in well-designed gate-drive circuits with ≤10 Ω series resistance. Above 50 kHz, switching losses dominate, requiring thermal derating per Fig. 1 and Fig. 2 in the datasheet.

Can BUK9215-55A replace a standard-level MOSFET like IRFZ44N in existing designs?

Yes, but only if gate drive voltage is ≥4.5 V. Unlike IRFZ44N (V_GS(th) ≈ 2–4 V, R_DS(on) = 28 mΩ @ 10 V), the BUK9215-55A achieves 13 mΩ at 5 V and operates fully enhanced at 3.3 V logic levels. No gate resistor change is needed, but verify layout thermal relief and mounting base isolation compatibility.

Does BUK9215-55A include built-in ESD protection?

No. The device has no integrated ESD protection diodes. Per datasheet Section 7, V_GS absolute maximum is ±15 V - exceeding this risks gate oxide damage. External TVS diodes (e.g., PESD5V0S1BA) between gate and source are recommended in production designs exposed to handling or connector mating events.

BUK9215-55A,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):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 13.6mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 48 nC @ 5 V

Vgs (Max):: ±15V

Input Capacitance (Ciss) (Max) @ Vds:: 2916 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

BUK9215-55A,118 FAQ

1.How can I place an order for BUK9215-55A,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK9215-55A,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 BUK9215-55A,118 reliable?

The price and inventory of BUK9215-55A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK9215-55A,118 is usually 5 days.

3.What payment methods are accepted for BUK9215-55A,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK9215-55A,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK9215-55A,118?

BUK9215-55A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK9215-55A,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 BUK9215-55A,118?

For technical support, including BUK9215-55A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK9215-55A,118 requirements.

6.How does Aetrix verify that BUK9215-55A,118 is sourced from the original manufacturer or authorized distributors?

All BUK9215-55A,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 BUK9215-55A,118 meets industry standards.

7.What is the process for return or replacement of BUK9215-55A,118?

All BUK9215-55A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK9215-55A,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 BUK9215-55A,118 part is unused and in its original packaging.

Return procedure for BUK9215-55A,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…