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

Diodes Incorporated DMG3418L-13

Name: DMG3418L-13
Brand: Diodes Incorporated
SKU: DMG3418L-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMG3418L-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

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

Datasheet:: DMG3418L-13.pdf

Description:: MOSFET N-CH 30V 4A SOT23

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DMG3418L-13 from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT23 package, rated for 30V V_DSS, 60mΩ R_DS(ON) @ 10V V_GS, and 4A continuous drain current at 25°C. It delivers low conduction loss and fast switching for compact DC-DC converters, backlighting drivers, and motor control stages in space-constrained power management circuits.

For engineers reviewing the DMG3418L-13 datasheet, DMG3418L-13 pinout, DMG3418L-13 application, or DMG3418L-13 equivalent, key selection criteria include its 4.5V-rated R_DS(ON) of 70mΩ, 464.3pF C_iss, 1.9ns t_D(ON), thermal resistance of 90°C/W, and SOT23 footprint compatibility with standard PCB layout practices.

Technical Context

This MOSFET employs planar silicon process technology optimized for low gate charge (Q_g = 5.5nC) and minimized output capacitance (C_oss = 49.5pF), enabling high-frequency operation up to 1MHz in synchronous buck topologies. Its V_GS(TH) range of 0.5–1.5V supports direct drive from 3.3V and 5V logic controllers without level shifting.

The device integrates a body diode with V_SD = 1.2V @ 2.0A and exhibits stable R_DS(ON) over temperature - 0.07Ω at 125°C under 4.5V gate drive - making it suitable for thermally demanding industrial and automotive-adjacent applications where junction temperatures reach 150°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30V - Maximum blocking voltage before avalanche; sets upper limit for input rail in 24V systems.
R_DS(ON) @ 10V	60mΩ - Conduction loss of 960mW at 4A; enables >95% efficiency in 5V-output buck converters.
R_DS(ON) @ 4.5V	70mΩ - Validated for direct 3.3V/4.5V MCU GPIO drive; avoids need for external gate driver.
C_iss	464.3pF - Low input capacitance reduces gate drive power and speeds turn-on with 3Ω source impedance.
t_D(ON)	1.9ns - Short delay time supports PWM frequencies ≥500kHz without duty cycle distortion.
T_J Range	−55°C to +150°C - Enables use in extended-temperature environments including under-hood automotive modules.
P_D @ 25°C	1.4W - Power dissipation limit on FR-4 with 2oz copper; defines maximum continuous current under natural convection.

Pinout & Package

Package: SOT23 (Standard), surface-mount, 3-terminal plastic case per JEDEC TO-236AB. Dimensions: 2.90 × 2.40 × 1.025 mm (L × W × H); moisture sensitivity level 1 per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1 (Source)	Current return path for channel conduction	Connected to ground or low-side reference; ties directly to PCB ground plane for thermal and EMI control.
2 (Gate)	Control electrode for channel formation	High-impedance input requiring <5.5nC total charge; sensitive to ESD but compatible with 3.3V logic thresholds.
3 (Drain)	Main current output terminal	Carries switched load current; routed away from noise-sensitive traces due to dV/dt coupling risk during turn-off.

Key Features

Feature	Design Value
Low R_DS(ON) @ 4.5V	70mΩ enables efficient 3.3V-driven switching in battery-powered portable devices without gate boosting.
Fast switching speed	1.9ns turn-on delay + 1.6ns rise time allows clean 1MHz PWM operation with minimal dead-time overhead.
Low input capacitance	464.3pF C_iss reduces gate drive current demand and minimizes Miller-induced shoot-through risk.
Green, RoHS-compliant construction	Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets IEC 61249-2-21 requirements.

Applications

LED Backlight Control

USB-C Power Delivery Switch

Use Scenario: Driving white LED strings in thin-profile LCD displays using PWM dimming at 20kHz.

IC Role / Device Role / Timing Role: Low-side switch controlling LED cathode current; synchronizes with display timing controller.

Use Value: 70mΩ R_DS(ON) at 4.5V ensures <100mW conduction loss per string, minimizing thermal impact on display bezel.

Use Scenario: Enabling/disabling 5–20V power paths in USB-C PD sink implementations with dynamic voltage negotiation.

IC Role / Device Role / Timing Role: Load switch managing VBUS routing between port controller and system rails; responds within 100ns to PD policy engine commands.

Use Value: 15A pulsed rating and 30V V_DSS support full USB-C PD 3.0 specification compliance up to 100W.

Brushed DC Motor Driver

Point-of-Load Buck Converter

Use Scenario: Half-bridge low-side switch in 12V fan or actuator drivers with PWM frequency ≥25kHz to eliminate audible noise.

IC Role / Device Role / Timing Role: Power stage transistor in discrete H-bridge; commutates motor current with precise edge control.

Use Value: 1.9ns t_D(ON) and 2.0ns t_F minimize switching transition losses, improving thermal margin by 12% vs. legacy SOT23 MOSFETs.

Use Scenario: High-efficiency 3.3V or 5V output stage in FPGA or SoC power supplies operating at 500kHz–1MHz.

IC Role / Device Role / Timing Role: Synchronous rectifier in buck converter secondary side; replaces Schottky diode to reduce forward drop.

Use Value: 60mΩ R_DS(ON) at 10V cuts conduction loss by 65% versus 0.4V Schottky, increasing light-load efficiency by 8–10 percentage points.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3025LSD-13	Same SOT23 package; lower R_DS(ON) (25mΩ @ 10V) but higher C_iss (720pF); 30V rating	Better for low-loss, low-frequency switching; less suitable for >500kHz due to higher gate charge	Select when priority is conduction loss over switching speed; verify gate drive capability for 7.2nC Q_g
AO3400	SOT23; 42mΩ @ 10V, 55mΩ @ 4.5V; higher ID (5.7A); same V_DSS	Higher current capacity suits larger motors or multi-rail POLO; slightly larger die increases thermal mass	Choose for designs needing >4A continuous current or improved thermal derating margin at 70°C ambient

Compared with DMG3418L-13, DMN3025LSD-13 trades faster switching for lower R_DS(ON), while AO3400 offers higher current headroom at modest cost premium - both require revalidation of gate drive strength and layout parasitics.

Availability

DMG3418L-13 is available at Aetrix Electronics and suitable for LED backlighting, USB-C power delivery switching, and brushed DC motor control requiring stable component supply across production ramp and long-term industrial deployment.

Supply support for DMG3418L-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The DMG3418L belongs to Diodes' PowerMOS™ portfolio, engineered specifically for high-efficiency, space-constrained power conversion in consumer, computing, and industrial equipment where low gate charge and thermally robust SOT23 packaging are critical.

FAQ

Is DMG3418L-13 suitable for automotive applications?

No - DMG3418L-13 is not AEC-Q101 qualified. While it operates from −55°C to +150°C and meets RoHS/Green standards, Diodes explicitly states that automotive-grade versions require separate qualification (PPAP, IATF 16949 manufacturing) and must be ordered under distinct part numbers. Use only in non-safety-critical, non-automotive applications unless validated per customer-specific change control.

What is the maximum safe gate-source voltage for DMG3418L-13?

The absolute maximum V_GS is ±12V per the datasheet's "Maximum Ratings" table. Exceeding this risks irreversible gate oxide breakdown. For reliable operation, keep V_GS between 0V and 10V during normal switching; transient overshoot must be clamped below ±12V using Zener diodes or active gate control.

Can DMG3418L-13 replace a BSS138 in a 3.3V logic interface?

Yes - with caveats. Both are SOT23 N-channel MOSFETs, but DMG3418L-13 has lower R_DS(ON) (70mΩ vs. 3.5Ω) and higher ID (3A vs. 0.22A), making it superior for power switching. However, its higher C_iss (464pF vs. 30pF) may slow edge rates in high-speed signal gating; verify timing margins in your specific circuit.

Does DMG3418L-13 have integrated ESD protection on the gate?

No - the datasheet does not specify built-in gate ESD protection structures. The gate oxide is rated for ±12V absolute maximum, and Diodes recommends external protection (e.g., series resistor + TVS clamp) in handling and board-level environments where static discharge exceeds 2kV HBM. Standard ESD precautions during assembly are mandatory.

DMG3418L-13 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:: 4A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 2.5V, 10V

Rds On (Max) @ Id, Vgs:: 60mOhm @ 4A, 10V

Vgs(th) (Max) @ Id:: 1.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 5.5 nC @ 4.5 V

Vgs (Max):: ±12V

Input Capacitance (Ciss) (Max) @ Vds:: 464.3 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 1.4W (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DMG3418L-13 FAQ

1.How can I place an order for DMG3418L-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMG3418L-13 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 DMG3418L-13 reliable?

The price and inventory of DMG3418L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMG3418L-13 is usually 5 days.

3.What payment methods are accepted for DMG3418L-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMG3418L-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMG3418L-13?

DMG3418L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMG3418L-13 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 DMG3418L-13?

For technical support, including DMG3418L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMG3418L-13 requirements.

6.How does Aetrix verify that DMG3418L-13 is sourced from the original manufacturer or authorized distributors?

All DMG3418L-13 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 DMG3418L-13 meets industry standards.

7.What is the process for return or replacement of DMG3418L-13?

All DMG3418L-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMG3418L-13, 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 DMG3418L-13 part is unused and in its original packaging.

Return procedure for DMG3418L-13:

1.Submit a request within 90 days.

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

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