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

Nexperia USA Inc. BUK7626-100B,118

Name: BUK7626-100B,118
Brand: Nexperia USA Inc.
SKU: BUK7626-100B,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK7626-100B,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: BUK7626-100B,118.pdf

Description:: MOSFET N-CH 100V 49A D2PAK

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Product details

Overview

BUK7626-100B,118 from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS standard-level power MOSFET in D2PAK (SOT404) package, rated for 100 V V_DS, 49 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature - designed for automotive load switching in 12 V/24 V systems including motors, lamps, and solenoids.

For engineers reviewing the BUK7626-100B,118 datasheet, BUK7626-100B,118 pinout, BUK7626-100B,118 application, or BUK7626-100B,118 equivalent, key selection criteria include R_DS(on) = 22 mΩ @ 10 V_GS/25 A/25 °C, avalanche energy rating of 144 mJ, thermal resistance R_th(j-mb) = 0.95 K/W, and compatibility with standard 10 V gate drive sources.

Technical Context

This device employs TrenchMOS technology to achieve low conduction losses and high thermal robustness. Its gate threshold voltage (V_GS(th)) ranges from 1 V (T_j = 175 °C) to 4.4 V (T_j = −55 °C), enabling reliable turn-on across automotive temperature extremes while maintaining safe margin against spurious conduction.

The MOSFET features integrated source-drain diode with V_SD = 0.85 V @ 25 A and t_rr = 94 ns, supporting moderate-speed commutation in inductive loads. Its dynamic parameters - Q_G(tot) = 38 nC, Q_GD = 13 nC, and C_iss = 2168 pF - indicate optimized switching behavior for thermally demanding 12–42 V automotive power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V maximum drain-source voltage - supports operation across 12 V, 24 V, and 42 V automotive battery architectures with safety margin.
I_D (continuous)	49 A @ T_mb = 25 °C - enables high-current switching without external heatsinking in compact PCB layouts.
R_DS(on)	22 mΩ typical @ V_GS = 10 V, I_D = 25 A, T_j = 25 °C - minimizes conduction loss and self-heating in sustained load conditions.
E_AS	144 mJ non-repetitive avalanche energy - provides ruggedness against inductive kickback during fault events like solenoid de-energization.
R_th(j-mb)	0.95 K/W junction-to-mounting-base thermal resistance - allows direct thermal coupling to heatsink or copper plane for stable 175 °C operation.
Q_G(tot)	38 nC total gate charge - balances switching speed and gate driver loading for efficient PWM control at ≤100 kHz.
V_GS(th)	2–4 V typical @ 25 °C - ensures clean turn-on with standard logic-level or microcontroller-compatible gate drivers.

Pinout & Package

Package: D2PAK (SOT404), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base electrically connected to drain terminal for low-inductance thermal path.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control input requiring ≥10 V for full enhancement; low gate charge enables fast switching with minimal driver stress.
2 (D)	Drain	Main high-side power terminal; internally bonded to mounting base for optimal thermal transfer and low parasitic inductance (L_D = 2.5 nH).
3 (S)	Source	Power return path and reference for gate drive; internal source inductance L_S = 7.5 nH affects high-frequency stability.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive critical applications including engine control, body electronics, and ADAS power stages.
175 °C maximum junction temperature	Enables reliable operation in under-hood environments without derating in ambient temperatures up to 125 °C.
Low R_DS(on) × Q_G figure-of-merit	Optimizes trade-off between conduction loss and switching loss for high-efficiency DC load control.
Integrated source-drain diode	Supports freewheeling in inductive loads with V_SD = 0.85 V and t_rr = 94 ns - reduces need for external flyback components.
Standard-level gate drive compatibility	Operates fully enhanced with 10 V gate voltage - eliminates need for level-shifting circuitry in 12 V system designs.

Applications

Automotive Body Control Module (BCM)

Engine Cooling Fan Driver

Use Scenario: Switching 12 V lamp clusters and door lock actuators in centralized vehicle body control units.

IC Role / Device Role / Timing Role: High-side power switch controlling resistive and inductive loads with PWM dimming capability.

Use Value: Low R_DS(on) minimizes heat generation in densely packed BCM PCBs; AEC-Q101 compliance ensures long-term reliability over 15-year vehicle lifetime.

Use Scenario: Driving brushed DC cooling fans in engine bays where ambient temperature exceeds 105 °C.

IC Role / Device Role / Timing Role: Thermally robust main power switch handling 30–45 A peak currents during fan startup and stall conditions.

Use Value: 175 °C rating and 144 mJ avalanche energy prevent failure during fan stall or reverse EMF transients.

Commercial Vehicle Lighting System

Off-Road Equipment Solenoid Control

Use Scenario: Controlling high-intensity LED headlamps and fog lamps in 24 V heavy-duty truck platforms.

IC Role / Device Role / Timing Role: Low-loss switching element managing constant-current LED drivers with thermal foldback protection.

Use Value: 22 mΩ R_DS(on) reduces power dissipation below 2 W at 20 A, eliminating need for discrete heatsinks in space-constrained lamp housings.

Use Scenario: Energizing hydraulic solenoid valves in agricultural and construction machinery operating in wide ambient ranges (−40 °C to +85 °C).

IC Role / Device Role / Timing Role: Robust power switch delivering 49 A pulses to high-inductance solenoids with fast turn-off to prevent coil saturation.

Use Value: Gate threshold stability across temperature ensures consistent timing margins; low Q_GD enables precise PWM-controlled valve positioning.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP110N10F7	100 V, 110 A, R_DS(on) = 8.5 mΩ @ 10 V - lower on-resistance but higher Q_G (65 nC) and no AEC-Q101 certification.	Targeted at industrial motor drives, not automotive-qualified; requires stronger gate driver and additional qualification effort.	Select only if higher current capacity and lower conduction loss outweigh automotive compliance requirements.
IRF3205PBF	55 V, 110 A, R_DS(on) = 8 mΩ @ 10 V - insufficient V_DS rating for 42 V automotive transients; no AEC-Q101 or 175 °C rating.	Designed for 12 V/24 V industrial SMPS and inverters; unsuitable for automotive load-dump or cold-crank scenarios.	Not recommended for automotive use; consider only for cost-sensitive non-automotive 12 V switching applications.

Compared with STP110N10F7 and IRF3205PBF, BUK7626-100B,118 uniquely combines AEC-Q101 qualification, 100 V rating, 175 °C operation, and 22 mΩ R_DS(on) - making it the only drop-in solution for thermally constrained automotive high-side switching without redesign or requalification.

Availability

BUK7626-100B,118 is available at Aetrix Electronics and suitable for automotive body electronics, engine cooling systems, commercial vehicle lighting, and off-road equipment solenoid control requiring stable component supply across extended temperature and lifecycle demands.

Supply support for BUK7626-100B,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 essential semiconductors - delivering discrete, logic, and MOSFET solutions engineered for automotive, industrial, and computing applications.

The BUK7626-100B,118 belongs to Nexperia's TrenchMOS automotive power portfolio, designed specifically for robust, high-current switching in harsh-temperature automotive subsystems where AEC-Q101 compliance and thermal resilience are mandatory.

FAQ

Is BUK7626-100B,118 suitable for high-side switching in 42 V automotive systems?

Yes - its 100 V V_DS rating provides sufficient margin above 42 V nominal systems to withstand load-dump transients (up to 60 V per ISO 7637-2) and cold-crank conditions. The device is qualified per AEC-Q101 and operates reliably up to 175 °C junction temperature, making it appropriate for high-side placement in battery management and chassis control modules.

What is the thermal performance difference between mounting base (mb) and ambient (a) configurations?

R_th(j-mb) is 0.95 K/W, meaning 1 W of power dissipation raises junction temperature by only 0.95 °C above the mounting base - ideal when bolted to a heatsink. In contrast, R_th(j-a) is 50 K/W on minimum footprint PCB, indicating severe self-heating without thermal enhancement. For automotive use, thermal design must prioritize mounting base conduction, not ambient convection.

Does BUK7626-100B,118 require a gate resistor for safe operation?

A gate resistor (typically 10–47 Ω) is recommended to dampen ringing caused by gate-drain capacitance (Crss = 102–140 pF) and internal inductances (L_S = 7.5 nH, L_D = 2.5 nH). Without it, fast edge rates may induce oscillation or shoot-through in half-bridge configurations. The datasheet specifies RG(ext) = 10 Ω for timing measurements, confirming its necessity in production designs.

How does the source-drain diode performance compare to discrete Schottky alternatives?

The integrated body diode has V_SD = 0.85 V @ 25 A and t_rr = 94 ns - higher forward drop and slower recovery than Schottky diodes, but sufficient for low-frequency (<5 kHz) freewheeling in solenoid and lamp drivers. It eliminates component count and layout area, though Schottky supplementation is advised for high-efficiency or high-frequency (>20 kHz) PWM applications.

BUK7626-100B,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 49A (Tc)

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

Rds On (Max) @ Id, Vgs:: 26mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 38 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2891 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 157W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

BUK7626-100B,118 FAQ

1.How can I place an order for BUK7626-100B,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7626-100B,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 BUK7626-100B,118 reliable?

The price and inventory of BUK7626-100B,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7626-100B,118 is usually 5 days.

3.What payment methods are accepted for BUK7626-100B,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7626-100B,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7626-100B,118?

BUK7626-100B,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7626-100B,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 BUK7626-100B,118?

For technical support, including BUK7626-100B,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7626-100B,118 requirements.

6.How does Aetrix verify that BUK7626-100B,118 is sourced from the original manufacturer or authorized distributors?

All BUK7626-100B,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 BUK7626-100B,118 meets industry standards.

7.What is the process for return or replacement of BUK7626-100B,118?

All BUK7626-100B,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7626-100B,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 BUK7626-100B,118 part is unused and in its original packaging.

Return procedure for BUK7626-100B,118:

1.Submit a request within 90 days.

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

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