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

Diodes Incorporated DMTH4014LPSWQ-13

Name: DMTH4014LPSWQ-13
Brand: Diodes Incorporated
SKU: DMTH4014LPSWQ-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMTH4014LPSWQ-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: 8-PowerTDFN

Datasheet:: DMTH4014LPSWQ-13.pdf

Description:: MOSFET BVDSS: 31V~40V POWERDI506

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Product details

Overview

DMTH4014LPSWQ-13 from Diodes Incorporated is an AEC-Q101-qualified 40V N-channel enhancement-mode MOSFET in PowerDI5060-8 (SWP) package, rated for +175°C operation, with R_DS(ON) = 14.5 mΩ @ V_GS = 10V and I_D = 43.5A at T_C = +25°C. It serves as a high-efficiency power switch in automotive DC-DC converters and synchronous rectifiers.

For engineers reviewing the DMTH4014LPSWQ-13 datasheet, DMTH4014LPSWQ-13 pinout, DMTH4014LPSWQ-13 application, or DMTH4014LPSWQ-13 equivalent, key selection criteria include its wettable flank package for optical inspection, 100% production-tested UIS robustness, low Q_g (11.2 nC @ V_GS = 10V), and thermal resistance R_θJC = 3.2°C/W for high-power-density designs.

Technical Context

This MOSFET employs a trench-gate silicon process optimized for low conduction loss and fast switching in automotive-grade power stages. Its gate threshold voltage (V_GS(TH) = 1–3 V) ensures reliable turn-on with standard 4.5V/10V logic-level drivers, while its low C_iss (750 pF) and C_rss (21 pF) minimize Miller effect and enable stable high-frequency operation up to 1 MHz.

The device integrates a robust body diode with t_RR = 11.3 ns and Q_RR = 9.5 nC, supporting efficient synchronous rectification in buck and flyback topologies. Its R_DS(ON) exhibits <20% variation over –55°C to +175°C junction temperature, enabling stable performance across extreme automotive ambient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40 V - Maximum blocking voltage compatible with 24V automotive systems and 36V transient surges.
R_DS(ON)	14.5 mΩ @ V_GS = 10V - Enables ≤0.6 W conduction loss at 20A, critical for thermally constrained engine control units.
I_D (T_C = 25°C)	43.5 A - Supports high-current power rails without external heatsinking when mounted on 2 oz copper PCB.
Q_g	11.2 nC @ V_GS = 10V - Reduces gate drive power and enables use with low-current controllers like UCC27531.
R_θJC	3.2°C/W - Allows direct thermal coupling to chassis or heatsink, delivering 46.9 W power dissipation at T_C = 25°C.
t_RR	11.3 ns - Limits reverse recovery losses in synchronous rectifier applications operating above 200 kHz.
E_AS	19.6 mJ - Withstands repetitive inductive energy spikes in motor driver and solenoid control circuits.

Pinout & Package

Package: PowerDI5060-8 (SWP), surface-mount, wettable flank, exposed drain pad for thermal and electrical connection. Molded green compound, UL 94V-0 rated, 0.097 g mass.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8 (Drain)	Drain (D)	All eight pins are internally connected to the exposed drain pad - provides low-inductance, high-current path and primary thermal conduction path to PCB.
Pin 1 (Source)	Source (S)	Leftmost source terminal - used for Kelvin sensing or low-side current monitoring in precision applications.
Pin 8 (Gate)	Gate (G)	Rightmost gate terminal - isolated input node; requires <1.1 Ω gate resistance for optimal switching speed and EMI control.

Key Features

Feature	Design Value
+175°C rated junction temperature	Enables deployment in under-hood modules (e.g., transmission control, battery management) without derating at 125°C ambient.
100% production UIS testing	Guarantees avalanche ruggedness for unclamped inductive loads like fuel injectors and HVAC actuators.
Wettable flank terminals	Supports automated optical inspection (AOI) of solder joint integrity on bottom-side terminations - critical for automotive PPAP compliance.
Low C_iss/C_rss ratio	750 pF / 21 pF = 35.7 - improves gate drive efficiency and reduces risk of false turn-on during high dv/dt events.
AEC-Q101 qualification & IATF 16949 manufacturing	Validates reliability for automotive safety-critical functions per ISO 26262 ASIL-B system integration requirements.

Applications

Engine Control Unit (ECU) Power Stage

Automotive DC-DC Converter

Use Scenario: High-side switching for 12V-to-5V/3.3V point-of-load regulation in engine control modules.

IC Role / Device Role / Timing Role: Primary power switch in synchronous buck converter operating at 500 kHz.

Use Value: Low R_DS(ON) and fast t_F = 4.9 ns reduce conduction and switching losses, enabling >94% efficiency at 20A load.

Use Scenario: Secondary-side synchronous rectifier in 48V-to-12V bidirectional DC-DC converter for mild hybrid vehicles.

IC Role / Device Role / Timing Role: Low-side rectifying MOSFET controlled by dedicated gate driver with adaptive dead-time.

Use Value: Body diode t_RR = 11.3 ns and Q_RR = 9.5 nC minimize reverse recovery loss, improving light-load efficiency by 2.1% vs. Schottky solution.

Electric Power Steering (EPS) Motor Driver

On-Board Charger (OBC) Auxiliary Supply

Use Scenario: Half-bridge high-side switch in three-phase inverter driving 12V EPS assist motor.

IC Role / Device Role / Timing Role: High-voltage, high-current switching element with integrated avalanche capability.

Use Value: E_AS = 19.6 mJ withstands inductive kickback during fault conditions, eliminating need for external snubbers.

Use Scenario: Primary-side switch in auxiliary 12V supply derived from OBC's high-voltage bus.

IC Role / Device Role / Timing Role: PWM-controlled power switch in flyback topology powering MCU, sensors, and CAN transceivers.

Use Value: R_θJC = 3.2°C/W allows full 43.5A rating with minimal heatsink, reducing BOM cost and board area by 35% vs. TO-252 solution.

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
STL135N4LF6AG	R_DS(ON) = 1.35 mΩ @ 10V, but 5x larger die size and SO-8FL package; higher Q_g = 35 nC.	Better conduction loss at high current, but slower switching and incompatible footprint.	Select only if conduction loss dominates and layout allows SO-8FL mounting with enhanced thermal vias.
IXTP44N10T	TO-220 package, R_DS(ON) = 22 mΩ @ 10V, no AEC-Q101 qualification, R_θJC = 1.5°C/W.	Higher thermal performance but lacks automotive qualification and wettable flank AOI support.	Acceptable for non-automotive industrial DC-DC where qualification and inspection are not required.

Compared with STL135N4LF6AG and IXTP44N10T, DMTH4014LPSWQ-13 uniquely balances low R_DS(ON), fast switching, AEC-Q101 compliance, and AOI-compatible packaging - making it optimal for space-constrained, safety-certified automotive power stages requiring zero visual inspection escapes.

Availability

DMTH4014LPSWQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, electric power steering systems, and on-board charger auxiliary supplies requiring stable component supply and full traceability.

Supply support for DMTH4014LPSWQ-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 distribution operations across Asia, Europe, and the Americas.

This part belongs to Diodes' Automotive Power MOSFET product line, engineered specifically for high-reliability, high-temperature automotive subsystems including powertrain, chassis, and body electronics.

FAQ

What is the maximum continuous drain current at 100°C case temperature?

The DMTH4014LPSWQ-13 supports 30.8 A continuous drain current at T_C = +100°C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the PowerDI5060-8 package and must be validated against actual PCB thermal design using the provided R_θJC = 3.2°C/W and R_θJA = 38°C/W values.

Does this MOSFET require a gate resistor for automotive EMI compliance?

Yes - a 1.6 Ω gate resistor is used in the datasheet's switching time test conditions (t_D(ON), t_R). For automotive EMI compliance, a 1–5 Ω series gate resistor is recommended to dampen ringing and limit peak dv/dt, especially in high-noise environments like engine bays.

Is the body diode suitable for freewheeling in a 48V automotive system?

No - the body diode is rated for V_DS = 40V maximum, making it unsuitable for direct 48V freewheeling. It is designed for synchronous rectification in ≤40V output stages (e.g., 12V or 24V rails). For 48V systems, external diode clamping or active clamp topologies are required.

How does the wettable flank feature impact reflow soldering profile?

The wettable flank enables full-side optical inspection but does not alter reflow requirements. Standard lead-free reflow profiles apply (peak 260°C, 60–90 sec above 217°C), with preheat ramp rates ≤3°C/sec. The matte tin finish ensures compatibility with no-clean fluxes and eliminates post-solder cleaning needs.

DMTH4014LPSWQ-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-PowerTDFN

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:: 43.5A (Tc)

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

Rds On (Max) @ Id, Vgs:: 14.5mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 11.2 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 750 pF @ 20 V

FET Feature:: -

Power Dissipation (Max):: 4W (Ta), 46.9W (Tc)

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: PowerDI5060-8 (Type UX)

DMTH4014LPSWQ-13 FAQ

1.How can I place an order for DMTH4014LPSWQ-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMTH4014LPSWQ-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 DMTH4014LPSWQ-13 reliable?

The price and inventory of DMTH4014LPSWQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMTH4014LPSWQ-13 is usually 5 days.

3.What payment methods are accepted for DMTH4014LPSWQ-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMTH4014LPSWQ-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMTH4014LPSWQ-13?

DMTH4014LPSWQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMTH4014LPSWQ-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 DMTH4014LPSWQ-13?

For technical support, including DMTH4014LPSWQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMTH4014LPSWQ-13 requirements.

6.How does Aetrix verify that DMTH4014LPSWQ-13 is sourced from the original manufacturer or authorized distributors?

All DMTH4014LPSWQ-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 DMTH4014LPSWQ-13 meets industry standards.

7.What is the process for return or replacement of DMTH4014LPSWQ-13?

All DMTH4014LPSWQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMTH4014LPSWQ-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 DMTH4014LPSWQ-13 part is unused and in its original packaging.

Return procedure for DMTH4014LPSWQ-13:

1.Submit a request within 90 days.

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

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