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

Diodes Incorporated DMTH4004SK3Q-13

Name: DMTH4004SK3Q-13
Brand: Diodes Incorporated
SKU: DMTH4004SK3Q-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMTH4004SK3Q-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

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

Datasheet:: DMTH4004SK3Q-13.pdf

Description:: MOSFET N-CH 40V 100A TO252

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Product details

Overview

DMTH4004SK3Q-13 from Diodes Incorporated is an AEC-Q101 qualified N-channel enhancement-mode MOSFET in TO252 (DPAK) package, rated for 40V V_DSS, 3.2mΩ R_DS(ON) @ 10V, and 100A continuous drain current at T_C = +25°C. It delivers robust unclamped inductive switching (E_AS = 160mJ), operates up to +175°C junction temperature, and is designed for automotive engine management and DC/DC converter power stages.

For engineers reviewing the DMTH4004SK3Q-13 datasheet, DMTH4004SK3Q-13 pinout, DMTH4004SK3Q-13 application, or DMTH4004SK3Q-13 equivalent, key selection criteria include its low Q_g (68.6nC), high-temperature reliability, AEC-Q101 qualification, and thermal resistance (R_θJC = 0.8°C/W) for thermally constrained automotive PCB layouts.

Technical Context

This MOSFET uses a trench-gate silicon process optimized for low R_DS(ON) and fast switching in high-current automotive power rails. Its gate threshold voltage (2–4V) enables compatibility with standard 3.3V/5V logic-level drivers while maintaining noise immunity under transient conditions.

The device integrates a co-packaged body diode with t_RR = 52.4ns and Q_RR = 78.2nC, supporting synchronous rectification and hard-switched topologies. Its 100% UIS-tested ruggedness ensures survivability in load-dump and inductive kickback events common in 12V/24V vehicle systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40V - Supports nominal 12V/24V automotive battery rails with margin for load dump transients.
R_DS(ON) max	3.2mΩ @ V_GS = 10V - Enables <1.5W conduction loss at 90A, reducing heatsink requirements.
Q_g typ	68.6nC - Low gate charge minimizes driver power and enables efficient 100kHz+ switching in DC/DC converters.
T_J max	+175°C - Qualified for under-hood environments without derating in engine control units.
E_AS	160mJ @ I_AS = 40A - Confirmed energy rating for reliable operation during unclamped inductive turn-off.
R_θJC	0.8°C/W - Enables direct thermal coupling to copper pour or heatsink for high-power density designs.
I_D cont	100A @ T_C = +25°C - Package-limited current supports high-current motor drivers and starter solenoid interfaces.

Pinout & Package

Package: TO252 (DPAK), surface-mount, exposed drain pad for thermal and electrical connection. Molded green compound, RoHS-compliant, halogen- and antimony-free.

Pin/Terminal	Circuit Role	Design Meaning
D (Drain)	Main power output terminal / exposed pad	Electrically and thermally connected to PCB copper pour; carries full load current and dissipates heat directly to board.
G (Gate)	Control input	Receives PWM signal; requires low-impedance drive path due to 68.6nC total gate charge.
S (Source)	Power return / reference node	Serves as local ground reference for gate drive; must be routed with minimal inductance to avoid shoot-through risk.

Key Features

Feature	Design Value
AEC-Q101 qualified & PPAP capable	Meets automotive reliability standards for mission-critical power stages including engine control and body electronics.
100% Unclamped Inductive Switching (UIS) tested	Guarantees robustness against voltage spikes from relay coils, solenoids, and motor windings without external snubbers.
Low R_DS(ON) and Q_g	Reduces both conduction losses (I²R) and switching losses (½ × Q_g × V_GS × f), improving efficiency in 300W–1kW DC/DC modules.
+175°C maximum junction temperature	Enables operation in high-ambient zones (e.g., near exhaust manifolds or transmission control units) without thermal shutdown.
Exposed drain pad with 0.8°C/W R_θJC	Allows >90% of heat to transfer directly to PCB, eliminating need for mechanical heatsinks in space-constrained modules.

Applications

Engine Management Systems

Body Control Modules

Use Scenario: High-side fuel injector driver in gasoline direct injection (GDI) systems requiring precise 12V pulse-width control.

IC Role / Device Role / Timing Role: Power switch controlling solenoid actuation with <10µs turn-on/off times and 100A peak current capability.

Use Value: Low Q_g and fast t_F = 8.1ns ensure accurate fuel metering across wide temperature range (-40°C to +150°C).

Use Scenario: Power distribution switch for adaptive lighting, HVAC actuators, and window lift motors in centralized body controllers.

IC Role / Device Role / Timing Role: Load switch providing overcurrent protection and controlled inrush limiting via gate slew-rate control.

Use Value: Rugged UIS rating prevents failure during motor stall events; 175°C rating avoids derating in sealed dashboard enclosures.

Automotive DC/DC Converters

Start-Stop System Power Stages

Use Scenario: Synchronous rectifier in 48V-to-12V bidirectional buck-boost converters for mild hybrid architectures.

IC Role / Device Role / Timing Role: Low-side switch operating at 200kHz with body diode recovery (t_RR = 52.4ns) minimizing reverse recovery loss.

Use Value: Low C_oss = 1441pF and Cr_ss = 102pF reduce capacitive switching loss and EMI generation in high-frequency power stages.

Use Scenario: Main power switch enabling rapid battery reconnection after engine stop in 12V start-stop systems.

IC Role / Device Role / Timing Role: High-current (100A+) hot-swap controller handling repeated cold-cranking pulses and cranking transients.

Use Value: 160mJ E_AS withstands repeated 40A inductive surges during restart cycles without degradation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4F7AG	40V, 2.2mΩ @ 10V, Q_g = 92nC, TO263 package	Higher R_DS(ON) but larger package; better thermal mass for sustained 100A loads	Select when board layout allows TO263 and higher thermal inertia is preferred over ultra-low Q_g.
IXTP100N04T4	40V, 3.5mΩ @ 10V, Q_g = 52nC, TO220 package	Lower Q_g but through-hole mounting; no exposed drain pad for PCB thermal conduction	Select for legacy through-hole assembly or where mechanical heatsinking is mandatory and surface-mount thermal design is impractical.

Compared with STL220N4F7AG and IXTP100N04T4, DMTH4004SK3Q-13 offers the best balance of low Q_g, surface-mount thermal performance, and AEC-Q101 compliance in a compact DPAK footprint-critical for modern automotive ECUs where board area and thermal management are tightly constrained.

Availability

DMTH4004SK3Q-13 is available at Aetrix Electronics and suitable for engine management systems, body control modules, and automotive DC/DC converters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DMTH4004SK3Q-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, specializing in high-reliability components for automotive, industrial, and computing markets.

This MOSFET belongs to Diodes' Automotive Power Solutions product line, engineered specifically for AEC-Q101 compliance, high-temperature operation, and ruggedized switching in safety-critical vehicle subsystems.

FAQ

What is the maximum continuous drain current rating for DMTH4004SK3Q-13?

The DMTH4004SK3Q-13 is rated for 100A continuous drain current at case temperature T_C = +25°C, limited by package thermal capability. At T_C = +100°C, it maintains 100A due to its low R_DS(ON) temperature coefficient and robust thermal design. Derating applies above +100°C per the normalized R_DS(ON) vs. temperature curve in Figure 6.

Is DMTH4004SK3Q-13 suitable for synchronous rectification in 48V automotive systems?

Yes-its 40V V_DSS, low Q_RR = 78.2nC, and fast t_RR = 52.4ns make it suitable for synchronous rectification in 48V-to-12V or 48V-to-5V buck converters. The body diode's soft recovery characteristic minimizes voltage overshoot and EMI when used with complementary high-side switching.

Does DMTH4004SK3Q-13 require a gate resistor for automotive PWM applications?

A gate resistor is recommended to control dV/dt and prevent oscillation, especially in high-noise engine bay environments. Typical values range from 2.2Ω to 10Ω depending on switching frequency and driver strength. The device's R_G = 0.77Ω internal gate resistance supports fast turn-on while remaining stable with moderate external series resistance.

How does the exposed drain pad affect PCB layout for DMTH4004SK3Q-13?

The exposed drain pad must be soldered to a minimum 25mm × 25mm 2oz copper thermal pad on the PCB to achieve the specified R_θJA = 38°C/W and R_θJC = 0.8°C/W. Thermal vias (≥8×0.3mm diameter) should connect the pad to inner-layer ground planes to maximize heat spreading and reduce junction temperature rise under 100A load.

DMTH4004SK3Q-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 100A (Tc)

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

Rds On (Max) @ Id, Vgs:: 3.2mOhm @ 90A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 68.6 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 4305 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.9W (Ta), 180W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252-3

DMTH4004SK3Q-13 FAQ

1.How can I place an order for DMTH4004SK3Q-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMTH4004SK3Q-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 DMTH4004SK3Q-13 reliable?

The price and inventory of DMTH4004SK3Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMTH4004SK3Q-13 is usually 5 days.

3.What payment methods are accepted for DMTH4004SK3Q-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMTH4004SK3Q-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMTH4004SK3Q-13?

DMTH4004SK3Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMTH4004SK3Q-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 DMTH4004SK3Q-13?

For technical support, including DMTH4004SK3Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMTH4004SK3Q-13 requirements.

6.How does Aetrix verify that DMTH4004SK3Q-13 is sourced from the original manufacturer or authorized distributors?

All DMTH4004SK3Q-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 DMTH4004SK3Q-13 meets industry standards.

7.What is the process for return or replacement of DMTH4004SK3Q-13?

All DMTH4004SK3Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMTH4004SK3Q-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 DMTH4004SK3Q-13 part is unused and in its original packaging.

Return procedure for DMTH4004SK3Q-13:

1.Submit a request within 90 days.

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

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