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

Nexperia USA Inc. BUK7Y07-30B,115

Name: BUK7Y07-30B,115
Brand: Nexperia USA Inc.
SKU: BUK7Y07-30B,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK7Y07-30B,115

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: SC-100, SOT-669

Datasheet:: BUK7Y07-30B,115.pdf

Description:: MOSFET N-CH 30V 75A LFPAK56

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Product details

Overview

BUK7Y07-30B from Nexperia is a standard-level N-channel TrenchMOS FET in LFPAK (SOT669) package, rated for 30 V V_DS, 75 A continuous drain current at T_mb = 25 °C, and 175 °C junction temperature, designed for automotive-critical 12 V power switching applications including motors, lamps, and solenoids.

For engineers reviewing the BUK7Y07-30B datasheet, BUK7Y07-30B pinout, BUK7Y07-30B application, or BUK7Y07-30B equivalent, key selection criteria include R_DS(on) = 5 mΩ @ 10 V/25 A/25 °C, avalanche energy rating of 198 mJ, thermal resistance R_th(j-mb) = 1.42 K/W, and AEC-Q101 qualification for automotive reliability.

Technical Context

This device uses Nexperia's High-Performance Automotive (HPA) TrenchMOS technology to achieve low conduction losses and robust thermal performance. Its standard-level gate drive compatibility (V_GS(th) = 2–4 V, max 10 V logic-level compatible) enables direct interfacing with microcontrollers and discrete drivers without level-shifting.

The LFPAK package integrates a thermally optimized mounting base connected to the drain, enabling high-power dissipation (P_tot = 105 W @ T_mb = 25 °C) and unclamped avalanche ruggedness up to 198 mJ - critical for inductive load switching in automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum drain-source blocking voltage; suitable for 12 V automotive systems with transient overvoltage margin.
I_D (continuous)	75 A @ T_mb = 25 °C - Package-limited current handling; derates to 63 A at T_mb = 100 °C for sustained thermal operation.
R_DS(on)	5 mΩ typ @ V_GS = 10 V, I_D = 25 A, T_j = 25 °C - Enables <1.25 W conduction loss at 25 A, reducing heatsink requirements.
E_AS	198 mJ - Non-repetitive unclamped avalanche energy; supports reliable switching of inductive loads like fuel injectors and fan motors without external snubbers.
R_th(j-mb)	1.42 K/W - Junction-to-mounting-base thermal resistance; allows efficient heat transfer to PCB copper or heatsink, enabling high-power density layouts.
Q_GD	10.7 nC - Gate-drain charge; determines Miller plateau duration and influences switching speed and gate driver sizing for 100 kHz-class PWM.
V_GS(th)	2–4 V @ I_D = 1 mA - Threshold voltage range ensures turn-on with standard 3.3 V/5 V logic while maintaining noise immunity at elevated temperatures.

Pinout & Package

Package: LFPAK (SOT669), plastic single-ended surface-mounted package with exposed mounting base (drain-connected) for enhanced thermal and electrical performance.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Source (S)	Three parallel source terminals reduce bond wire inductance and improve current sharing; directly connects to PCB ground plane.
4	Gate (G)	Single gate input with low capacitance (C_iss = 1330 pF typ); requires <10 Ω series gate resistor for controlled turn-on/turn-off.
Mounting Base (mb)	Drain (D)	Exposed copper pad electrically and thermally connected to drain; must be soldered to large copper area for thermal management and low-inductance return path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-critical applications per stress test requirements, including temperature cycling, HTRB, and ESD.
175 °C maximum junction temperature	Enables operation in under-hood environments (e.g., engine control modules) without thermal shutdown or parameter drift.
Low R_DS(on) × Q_G figure-of-merit	31 nC total gate charge with 5 mΩ on-resistance balances switching efficiency and conduction loss in high-frequency DC-DC or motor drives.
Integrated source-drain diode	V_SD = 0.85 V @ I_S = 25 A enables freewheeling in half-bridge configurations without external Schottky diodes.
Robust avalanche capability	198 mJ unclamped avalanche energy allows safe operation during inductive flyback events common in solenoid and relay driving.

Applications

Automotive Engine Control

Body Electronics Switching

Use Scenario: Driving fuel injectors and ignition coils in 12 V engine management systems.

IC Role / Device Role / Timing Role: High-side or low-side power switch controlling pulsed inductive loads with fast turn-off (<40 ns fall time) and avalanche energy absorption.

Use Value: Eliminates need for external flyback diodes and reduces PCB area by integrating rugged switching capability with AEC-Q101 compliance.

Use Scenario: Controlling headlights, HVAC blowers, and power window motors in vehicle body control modules.

IC Role / Device Role / Timing Role: Low-loss power switch operating at 10–100 Hz duty cycles with thermal stability up to 175 °C ambient.

Use Value: Reduces conduction loss to <1.25 W at 25 A, minimizing heatsink size and enabling compact, sealed module designs.

Industrial 12 V Motor Drives

Commercial Vehicle Lighting

Use Scenario: PWM-controlled DC motors in off-road equipment and agricultural machinery.

IC Role / Device Role / Timing Role: Half-bridge low-side switch with 356 A peak current capability and 28 ns fall time for precise torque regulation.

Use Value: Supports high peak currents without thermal runaway due to 1.42 K/W R_th(j-mb) and 105 W power dissipation at board level.

Use Scenario: Solid-state replacement for mechanical relays in trailer lighting and brake lamp circuits.

IC Role / Device Role / Timing Role: Fail-safe power switch with integrated source-drain diode (V_SD = 0.85 V) for reverse-polarity protection and load dump surge tolerance.

Use Value: Achieves >99.5% efficiency at 25 A, extending battery life and eliminating contact wear and arcing failures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N3LLH6	R_DS(on) = 2.2 mΩ @ 10 V but requires 4.5 V min gate drive; higher Q_G = 45 nC; same SOT669 package.	Better conduction loss at high current, but slower switching and less suitable for 3.3 V MCU drive.	Select when lowest R_DS(on) dominates and gate drive ≥4.5 V is available; verify SOA for 100 µs pulses.
IRL8721PBF	R_DS(on) = 6.8 mΩ @ 10 V; TO-220AB package; no AEC-Q101 qualification; R_th(j-c) = 2.5 K/W.	Larger footprint, lower thermal performance, and non-automotive grade limits use to industrial/non-safety-critical systems.	Use only in cost-sensitive, non-automotive 12 V applications where AEC-Q101 and LFPAK thermal advantages are not required.

Compared with STL220N3LLH6 and IRL8721PBF, BUK7Y07-30B offers optimal balance of AEC-Q101 compliance, 5 mΩ R_DS(on), 1.42 K/W thermal resistance, and standard-level gate drive - making it uniquely suited for space-constrained, thermally demanding automotive power switches.

Availability

BUK7Y07-30B is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, and industrial 12 V motor drives requiring stable component supply across extended product lifecycles.

Supply support for BUK7Y07-30B 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 for automotive, industrial, and consumer markets, with leadership in MOSFETs, ESD protection, and logic devices.

BUK7Y07-30B belongs to Nexperia's High-Performance Automotive (HPA) TrenchMOS product line, engineered specifically for AEC-Q101-compliant 12 V power switching in harsh under-hood and chassis environments.

FAQ

Is BUK7Y07-30B suitable for high-frequency PWM motor control?

Yes - with 28 ns fall time, 40 ns turn-off delay, and 10.7 nC Q_GD, it supports PWM frequencies up to 200 kHz in brushed DC motor drives. Its low R_DS(on) minimizes conduction loss, while thermal resistance of 1.42 K/W enables stable operation at 75 A with proper PCB copper design.

What is the maximum allowable mounting base temperature for continuous operation?

The mounting base temperature (T_mb) must not exceed 100 °C for continuous 63 A operation, per Figure 1. At T_mb = 25 °C, full 75 A is supported. Derating is linear between these points, and thermal design must ensure T_j ≤ 175 °C using R_th(j-mb) = 1.42 K/W and ambient conditions.

Does BUK7Y07-30B require a gate resistor, and what value is recommended?

Yes - a series gate resistor is required to control dV/dt and prevent oscillation. For 10 V gate drive and typical 100 kHz switching, a 4.7 Ω to 10 Ω resistor provides optimal trade-off between switching speed (Q_G = 31 nC) and EMI suppression, as confirmed by Nexperia's application note AN10273.

Can BUK7Y07-30B replace a mechanical relay in automotive lighting applications?

Yes - its 356 A peak drain current, 198 mJ avalanche energy, and integrated source-drain diode enable solid-state replacement of 40 A relays in headlight and brake lamp circuits. It eliminates contact bounce, extends service life, and supports PWM dimming without arcing or wear.

BUK7Y07-30B,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: SC-100, SOT-669

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 75A (Tc)

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

Rds On (Max) @ Id, Vgs:: 7mOhm @ 25A, 10V

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

Gate Charge (Qg) (Max) @ Vgs:: 31 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1773 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 105W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: LFPAK56, Power-SO8

BUK7Y07-30B,115 FAQ

1.How can I place an order for BUK7Y07-30B,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK7Y07-30B,115 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 BUK7Y07-30B,115 reliable?

The price and inventory of BUK7Y07-30B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y07-30B,115 is usually 5 days.

3.What payment methods are accepted for BUK7Y07-30B,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7Y07-30B,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK7Y07-30B,115?

BUK7Y07-30B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK7Y07-30B,115 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 BUK7Y07-30B,115?

For technical support, including BUK7Y07-30B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y07-30B,115 requirements.

6.How does Aetrix verify that BUK7Y07-30B,115 is sourced from the original manufacturer or authorized distributors?

All BUK7Y07-30B,115 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 BUK7Y07-30B,115 meets industry standards.

7.What is the process for return or replacement of BUK7Y07-30B,115?

All BUK7Y07-30B,115 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y07-30B,115, 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 BUK7Y07-30B,115 part is unused and in its original packaging.

Return procedure for BUK7Y07-30B,115:

1.Submit a request within 90 days.

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

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