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

Diodes Incorporated DMN3032LQ-7

Name: DMN3032LQ-7
Brand: Diodes Incorporated
SKU: DMN3032LQ-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMN3032LQ-7

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: DMN3032LQ-7.pdf

Description:: MOSFET BVDSS: 8V~24V SOT23 T&R 3

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Product details

Overview

DMN3032LQ-7 from Diodes Incorporated is an AEC-Q101 qualified N-channel enhancement-mode MOSFET in SOT23 package, rated for 30V V_DSS, 31 mΩ R_DS(ON) @ 10V V_GS, and 5.4A I_D at +25°C - designed for automotive backlighting, DC-DC converters, and power-management functions.

For engineers reviewing the DMN3032LQ-7 datasheet, DMN3032LQ-7 pinout, DMN3032LQ-7 application, or DMN3032LQ-7 equivalent, key selection criteria include its AEC-Q101 qualification, low R_DS(ON) at 4.5V gate drive, fast switching (t_F = 13.4 ns), thermal resistance of 93°C/W under recommended layout, and SOT23 footprint compatibility with space-constrained automotive modules.

Technical Context

This MOSFET operates as a low-side switch in automotive power stages, supporting logic-level gate drive down to 4.5V with guaranteed R_DS(ON) ≤ 45 mΩ. Its 1.0–2.0V V_GS(TH) range ensures robust turn-on margin across temperature and process variation.

The device features low dynamic parameters: C_iss = 481 pF, Q_g = 10.1 nC @ 10V, and t_D(OFF) = 16.9 ns - enabling high-frequency operation in buck regulators and LED drivers while minimizing switching losses.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30 V - Maximum drain-source blocking voltage for 12V automotive rail applications with transient margin.
R_DS(ON)	31 mΩ @ V_GS = 10V, I_D = 5.8A - Enables <170 mW conduction loss at 5A continuous current.
I_D (max)	5.4 A @ T_A = +25°C - Supports typical LED string current or point-of-load switching regulator output stage.
Q_g	10.1 nC @ V_GS = 10V - Determines gate driver current requirement for <100 ns switching transitions.
t_F	13.4 ns - Limits switching energy loss during turn-off in 500 kHz–1 MHz DC-DC converters.
R_θJA	93 °C/W - Achieved with minimum recommended SOT23 pad layout on 2 oz copper FR-4 board.
V_GS(TH)	1.0–2.0 V - Ensures reliable turn-on with 3.3V or 5V microcontroller GPIO without level-shifting.

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin annealed terminals, moisture sensitivity level 1, UL 94V-0 rated molding compound, 0.008 g weight.

Pin/Terminal	Circuit Role	Design Meaning
1 (Source)	Power return path	Connected to ground or low-side reference; carries full load current and forms body diode cathode.
2 (Gate)	Control input	High-impedance MOSFET control node requiring <10.1 nC charge for full turn-on; sensitive to ESD.
3 (Drain)	Power output node	Switches 30V rail; connects to load/anode side; handles pulsed current up to 30A (1% duty).

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use per stress test requirements including HTGB, HTRB, and TC; supported by PPAP documentation.
Low R_DS(ON) @ 4.5V	45 mΩ max enables direct drive from 5V MCU outputs without external level shifters in cost-sensitive modules.
Fast switching speed	13.4 ns fall time and 16.9 ns turn-off delay allow efficient operation above 500 kHz in compact DC-DC designs.
Green packaging	Halogen- and antimony-free, RoHS 3 compliant (Br+Cl <1500 ppm, Sb <1000 ppm) for automotive environmental compliance.

Applications

Automotive LED Backlighting

12V-to-5V Buck Converter

Use Scenario: Driving white LED strings in instrument cluster or infotainment display backlighting with PWM dimming.

IC Role / Device Role: Low-side synchronous rectifier switch in boost or buck-boost LED driver topology.

Use Value: 31 mΩ R_DS(ON) minimizes power loss and thermal rise in sealed display enclosures; AEC-Q101 ensures reliability over 15-year vehicle lifetime.

Use Scenario: High-efficiency step-down conversion for powering microcontrollers and sensors from automotive battery rail.

IC Role / Device Role: Power switch in discrete or controller-based buck regulator operating at 1–2 MHz.

Use Value: Fast t_F = 13.4 ns and low Q_g reduce switching losses, enabling >92% efficiency at 3A output with small passive components.

Automotive Body Control Module

USB-C Power Delivery Load Switch

Use Scenario: Controlling solenoids, relays, or small motors in door lock, window lift, or mirror adjustment circuits.

IC Role / Device Role: Protected low-side switch replacing mechanical relays to reduce size and improve cycle life.

Use Value: 30V rating accommodates load dump transients; 45 mΩ R_DS(ON) @ 4.5V allows direct interface with 5V CAN/LIN transceiver logic outputs.

Use Scenario: Enabling/disabling VBUS path in automotive USB-C ports with overcurrent and thermal protection.

IC Role / Device Role: Discrete load switch element controlled by USB PD controller GPIO.

Use Value: Low input leakage (<100 nA) prevents standby current drain; SOT23 footprint fits tight PCB space behind connector.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3025LQ-7	Lower R_DS(ON) (25 mΩ @ 10V), same SOT23 package and AEC-Q101 qualification.	Better conduction efficiency at high current; higher gate charge (11.5 nC) increases driver demand.	Select when thermal budget is tighter and gate drive capability supports higher Q_g.
NTMFS4C06NT1G	Higher V_DSS (40V), SO-8FL package, 2.8 mΩ R_DS(ON); not AEC-Q101 qualified.	Supports 24V systems and higher current loads but lacks automotive qualification and requires larger footprint.	Select only for non-automotive industrial 24V applications where qualification is not required.

Compared with DMN3032LQ-7, DMN3025LQ-7 offers lower conduction loss at identical footprint and qualification, while NTMFS4C06NT1G trades automotive compliance for higher voltage rating and lower R_DS(ON) in a larger package - making DMN3032LQ-7 optimal for cost- and space-constrained AEC-Q101-compliant 12V systems.

Availability

DMN3032LQ-7 is available at Aetrix Electronics and suitable for automotive LED backlighting, 12V-to-5V buck converters, and body control module power switching requiring stable component supply and long-term lifecycle support.

Supply support for DMN3032LQ-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The DMN3032LQ belongs to Diodes' AEC-Q101-qualified automotive MOSFET product line, engineered specifically for power-switching roles in harsh-environment vehicle subsystems with emphasis on thermal stability and gate-drive compatibility.

FAQ

What is the maximum junction temperature for continuous operation?

The DMN3032LQ-7 has an operating junction temperature range of –55°C to +150°C. Continuous operation at T_J = +150°C is permitted per SOA curves, provided power dissipation remains within the derated limit defined by R_θJA = 93°C/W and ambient conditions - verified under JEDEC-standard board layout.

Is the DMN3032LQ-7 suitable for 3.3V gate drive?

No - the device's V_GS(TH) range is 1.0–2.0V, but R_DS(ON) is not specified below V_GS = 4.5V. At 3.3V, R_DS(ON) increases significantly (typical >100 mΩ), causing excessive conduction loss; it is validated only for 4.5V and 10V gate drive per datasheet test conditions.

Does this part have integrated ESD protection?

The DMN3032LQ-7 does not include on-die ESD protection circuitry. Its gate oxide is rated for ±20V V_GS, and handling requires standard Class 1B ESD precautions (HBM <500V). External TVS or RC filtering is recommended in noisy automotive environments.

How does the SOT23 package affect thermal performance in automotive applications?

In automotive applications, the SOT23 package limits power dissipation to 0.8W (steady-state) or 1.3W (short-duration pulse) due to its small thermal mass and interfacial resistance. Effective heat sinking requires optimized copper pour on both top and bottom layers per Diodes' recommended pad layout to achieve the 93°C/W R_θJA rating.

DMN3032LQ-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 5.4A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 31mOhm @ 5.8A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 10.1 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 481 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 800mW

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DMN3032LQ-7 FAQ

1.How can I place an order for DMN3032LQ-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMN3032LQ-7 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 DMN3032LQ-7 reliable?

The price and inventory of DMN3032LQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN3032LQ-7 is usually 5 days.

3.What payment methods are accepted for DMN3032LQ-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN3032LQ-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMN3032LQ-7?

DMN3032LQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMN3032LQ-7 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 DMN3032LQ-7?

For technical support, including DMN3032LQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN3032LQ-7 requirements.

6.How does Aetrix verify that DMN3032LQ-7 is sourced from the original manufacturer or authorized distributors?

All DMN3032LQ-7 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 DMN3032LQ-7 meets industry standards.

7.What is the process for return or replacement of DMN3032LQ-7?

All DMN3032LQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMN3032LQ-7, 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 DMN3032LQ-7 part is unused and in its original packaging.

Return procedure for DMN3032LQ-7:

1.Submit a request within 90 days.

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

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