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

Diodes Incorporated DMTH4005SK3-13

Name: DMTH4005SK3-13
Brand: Diodes Incorporated
SKU: DMTH4005SK3-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMTH4005SK3-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

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

Datasheet:: DMTH4005SK3-13.pdf

Description:: MOSFET N-CH 40V 95A TO252

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Product details

Overview

DMTH4005SK3-13 from Diodes Incorporated is a 40V, 95A N-channel enhancement-mode MOSFET in TO252 (DPAK) package, rated for operation up to +175°C. It delivers 4.5mΩ R_DS(ON) at V_GS = 10V and features low Q_g (49.1nC) and robust 100% unclamped inductive switching capability. It is qualified to AEC-Q101 and used in automotive engine management and high-efficiency DC-DC converters.

For engineers reviewing the DMTH4005SK3-13 datasheet, DMTH4005SK3-13 pinout, DMTH4005SK3-13 application, or DMTH4005SK3-13 equivalent, key selection criteria include R_DS(ON) stability over temperature, junction-to-case thermal resistance (1.5°C/W), avalanche energy rating (52.8mJ), and AEC-Q101 qualification status for automotive deployment.

Technical Context

This MOSFET employs planar silicon technology optimized for low conduction loss while maintaining fast switching performance. Its gate threshold voltage (2–4V) enables compatibility with standard 3.3V/5V/10V logic-level drive, and its body diode exhibits 0.9V forward voltage at 50A, supporting synchronous rectification and freewheeling roles.

The device's SOA is defined up to 100W at T_C = +25°C with pulse-width-limited operation, and its transient thermal impedance curve supports accurate thermal modeling under pulsed loads. C_iss (3062pF), C_oss (902pF), and C_rss (179pF) values are specified at V_DS = 20V, enabling precise gate driver sizing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40V - Maximum drain-source blocking voltage; defines safe operating range in 12V/24V automotive systems.
R_DS(ON) max	4.5mΩ @ V_GS = 10V - Enables <1W conduction loss at 50A, critical for high-current power stages.
I_D continuous	95A @ T_C = +25°C - Package-limited current capacity; requires heatsinking above ~40°C case temperature.
Q_g	49.1nC - Determines gate drive power and switching speed; compatible with medium-power drivers like UCC27531.
E_AS	52.8mJ - Quantifies single-pulse avalanche ruggedness; supports reliable operation during inductive load turn-off.
T_J max	+175°C - Enables placement near hot zones (e.g., engine bay, powertrain modules) without derating.
R_θJC	1.5°C/W - Confirms efficient heat transfer from die to PCB copper pad; validates use with exposed-drain thermal pads.

Pinout & Package

Package: TO252 (DPAK), surface-mount, with exposed drain pad for thermal and electrical connection. Molded green compound, UL 94V-0 rated, lead-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
D (Drain)	Main current path output / heat sink node	Connected to large copper pour; carries full load current and dissipates >95% of heat via exposed pad.
G (Gate)	Control input for channel modulation	High-impedance node requiring low-inductance routing; sensitive to ringing due to 0.67Ω gate resistance.
S (Source)	Reference node for gate drive and current return	Used as local ground reference; must be tightly coupled to gate driver return to minimize shoot-through risk.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control units and body electronics per stress test requirements.
100% UIS tested	Each unit undergoes unclamped inductive switching validation-ensures reliability in flyback and motor drive circuits.
Low R_DS(ON) tempco	R_DS(ON) increases only ~1.8× from 25°C to 175°C (per Fig.6), enabling stable current handling across ambient extremes.
Green compound	Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb), meeting automotive environmental compliance mandates.
Optimized C_rss/C_iss ratio	Crss/Ciss = 5.8% - Reduces Miller effect, improving hard-switching robustness and reducing gate drive losses.

Applications

Engine Control Unit (ECU) Power Stage

Automotive Body Control Module (BCM)

Use Scenario: High-side load switch controlling fuel injector solenoids or ignition coils in 12V/42V engine management systems.

IC Role / Device Role / Timing Role: Main power switch with fast turn-on (<8.7ns delay) and controlled fall time (7.3ns) to limit EMI during coil de-energization.

Use Value: 4.5mΩ R_DS(ON) minimizes I²R heating during sustained 5–10A pulses; +175°C rating avoids thermal shutdown during under-hood operation.

Use Scenario: Low-side driver for HVAC blower motors, seat heaters, or lighting arrays in centralized body electronics.

IC Role / Device Role / Timing Role: Robust N-channel switch replacing mechanical relays; handles repetitive 30–80A inrush currents with minimal contact wear.

Use Value: 52.8mJ avalanche energy withstands inductive kickback from motor windings; AEC-Q101 ensures long-term field reliability.

48V Mild Hybrid DC-DC Converter

Industrial 24V/48V Power Supply

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

IC Role / Device Role / Timing Role: Secondary-side power FET operating at 200–500kHz; leverages low Q_g and fast t_F/t_R for high efficiency.

Use Value: 49.1nC Q_g reduces gate drive loss by >30% vs. comparable 5mΩ devices; low C_oss (902pF) improves light-load efficiency.

Use Scenario: Primary-side high-current switch in industrial 24V/48V isolated forward or LLC converters powering PLCs and HMIs.

IC Role / Device Role / Timing Role: Main switching element in half-bridge topology; operates with 10V gate drive and tight dead-time control.

Use Value: 1.5°C/W R_θJC allows direct mounting to heatsink-equipped PCBs; TO252 footprint simplifies layout and rework versus TO220.

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
STL220N4F7AG	40V, 220A, R_DS(ON) = 1.7mΩ @ 10V; PowerFLAT 5x6 package; higher current, lower R_DS(ON), but larger footprint and no AEC-Q101 rating.	Targeted at non-automotive high-density power supplies where space permits larger package and qualification is not required.	Select when peak current >120A is needed and AEC-Q101 is unnecessary; verify thermal interface for 5x6 exposed pad.
DMTH4005LK3-13	Same die, TO263 (D2PAK) package; identical R_DS(ON), Q_g, and ratings; larger thermal mass and higher R_θJC (1.2°C/W).	Preferred for higher-power industrial converters where board space allows D2PAK and enhanced thermal margin is prioritized.	Choose for designs needing improved thermal headroom or legacy D2PAK compatibility; same gate drive and layout logic apply.

Compared with STL220N4F7AG and DMTH4005LK3-13, the DMTH4005SK3-13 uniquely balances AEC-Q101 compliance, TO252 manufacturability, and 4.5mΩ/95A performance-making it optimal for cost-sensitive, thermally constrained automotive modules where qualification and footprint are decisive.

Availability

DMTH4005SK3-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, and 48V DC-DC converters requiring stable component supply, automotive-grade traceability, and long-term production continuity.

Supply support for DMTH4005SK3-13 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 the Americas.

This MOSFET belongs to Diodes' Automotive Power Solutions product line, engineered specifically for high-reliability, high-temperature power switching in engine, chassis, and body electronics-emphasizing AEC-Q101 qualification, thermal resilience, and production consistency.

FAQ

What is the maximum continuous drain current for DMTH4005SK3-13 at 100°C case temperature?

The datasheet specifies 73A continuous drain current at T_C = +100°C (Note 9). This derating reflects thermal limits of the TO252 package and junction-to-case thermal resistance (1.5°C/W); actual usable current depends on PCB copper area and airflow.

Does DMTH4005SK3-13 support logic-level gate drive?

Yes-it has a gate threshold voltage (V_GS(TH)) of 2–4V, enabling turn-on with 3.3V or 5V microcontroller outputs. However, full R_DS(ON) specification (4.5mΩ) requires V_GS = 10V; for logic-level operation, expect ~8–10mΩ at V_GS = 4.5V (per Fig.4).

How does the body diode performance compare to external Schottky diodes in synchronous rectification?

Its body diode has V_SD = 0.9V at 50A and t_RR = 31.8ns, making it suitable for moderate-frequency freewheeling. While less efficient than optimized Schottky diodes below 0.5V, its integrated nature eliminates layout parasitics and reduces component count in space-constrained automotive modules.

Is there a halogen-free version of DMTH4005SK3-13, and how is it marked?

Yes-the device is inherently halogen- and antimony-free ("Green"), with bromine/chlorine <900ppm and antimony <1000ppm. It carries "e3 Green" marking on the top surface per datasheet Figure: "H4005S YYWW", where "e3" denotes matte tin annealed finish and "Green" confirms halogen-free status.

DMTH4005SK3-13 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:: 95A (Tc)

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

Rds On (Max) @ Id, Vgs:: 4.5mOhm @ 50A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 49.1 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 3062 pF @ 20 V

FET Feature:: -

Power Dissipation (Max):: 2.1W (Ta), 100W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252-3

DMTH4005SK3-13 FAQ

1.How can I place an order for DMTH4005SK3-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMTH4005SK3-13 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 DMTH4005SK3-13 reliable?

The price and inventory of DMTH4005SK3-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMTH4005SK3-13 is usually 5 days.

3.What payment methods are accepted for DMTH4005SK3-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMTH4005SK3-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMTH4005SK3-13?

DMTH4005SK3-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMTH4005SK3-13 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 DMTH4005SK3-13?

For technical support, including DMTH4005SK3-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMTH4005SK3-13 requirements.

6.How does Aetrix verify that DMTH4005SK3-13 is sourced from the original manufacturer or authorized distributors?

All DMTH4005SK3-13 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 DMTH4005SK3-13 meets industry standards.

7.What is the process for return or replacement of DMTH4005SK3-13?

All DMTH4005SK3-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMTH4005SK3-13, 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 DMTH4005SK3-13 part is unused and in its original packaging.

Return procedure for DMTH4005SK3-13:

1.Submit a request within 90 days.

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

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