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Diodes Incorporated DMG3414UQ-13
- Part No.:
- DMG3414UQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMG3414UQ-13.pdf
- Description:
- MOSFET N-CH 20V 4.2A SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,872
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Product details
Overview
DMG3414UQ from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT23 package, rated for 20V VDSS, 4.2A ID at TA = +25°C, and 25mΩ RDS(ON) @ VGS = 4.5V. It delivers low on-resistance with fast switching (tD(ON) = 8.1ns, tF = 9.6ns) and AEC-Q101 qualification for automotive power management.
For engineers reviewing the DMG3414UQ datasheet, DMG3414UQ pinout, DMG3414UQ application, or DMG3414UQ equivalent, key selection criteria include its 1.8V gate-threshold compatibility, 829.9pF Ciss, thermal resistance of 162°C/W, and suitability for space-constrained DC-DC converter high-side switching.
Technical Context
This MOSFET operates as a single N-channel switch optimized for low-voltage, high-efficiency power conversion. Its 0.5–0.9V VGS(TH) enables direct drive from 1.8V/2.5V/3.3V logic, while 81.2pF Crss and 9.6nC Qg support clean turn-off in synchronous buck topologies.
Thermally, it sustains operation from –55°C to +150°C with normalized RDS(ON) drift ≤1.8× over temperature range. The SOT23 package provides 0.78W PD at TA = +25°C with 162°C/W RθJA, validated per J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20V - Maximum drain-source blocking voltage for 12V rail switching |
| RDS(ON) | 25mΩ @ VGS = 4.5V - Enables ≤105mW conduction loss at 4.2A in compact layout |
| ID (max) | 4.2A @ TA = +25°C - Supports continuous load current in portable power modules |
| Ciss | 829.9pF - Limits gate drive current demand and improves EMI control in 1–3MHz converters |
| tF | 9.6ns - Reduces switching transition time to minimize overlap losses in synchronous rectification |
| VGS(TH) | 0.5–0.9V - Ensures reliable turn-on with 1.8V GPIO or low-VCC microcontroller outputs |
| Qg | 9.6nC - Matches standard gate drivers (e.g., TC4427) without requiring external boost circuitry |
Pinout & Package
Package: SOT23 - 3-pin surface-mount plastic package, 2.4mm × 1.3mm footprint, 0.915mm body height, matte tin annealed terminals, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path to ground or low-side reference | Connected to PCB ground plane for thermal dissipation and low-inductance return |
| 2 (Gate) | Control input for channel conduction | Requires <100nA leakage tolerance and <9.6nC charge for full enhancement |
| 3 (Drain) | High-side power output node | Rated for 20V transients and 30A pulsed current in short-circuit events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power systems including infotainment and ADAS domain controllers |
| Low RDS(ON) at 1.8V VGS | 37mΩ enables use with ultra-low-voltage logic without level-shifting circuitry |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and IATF 16949 manufacturing requirements |
| Fast switching with low Crss | 81.2pF reverse transfer capacitance minimizes Miller-induced shoot-through risk |
| Low leakage | <1.0µA IDSS at 20V ensures minimal standby power loss in battery-powered devices |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery (PD) Load Switch |
|---|---|
|
Use Scenario: Controlling 12V lighting loads (LED headlamps, interior lamps) via microcontroller PWM signals. IC Role / Device Role / Timing Role: High-side load switch with fast turn-off (tF = 9.6ns) to prevent lamp flicker during rapid dimming cycles. Use Value: 25mΩ RDS(ON) limits voltage drop to <105mV at 4.2A, preserving LED forward voltage margin and enabling precise current regulation. |
Use Scenario: Enabling/disabling 5–20V power paths in USB-C PD sink applications with strict inrush control. IC Role / Device Role / Timing Role: Low-threshold (0.5–0.9V) N-channel switch driven directly by PD controller's 1.8V GPIO. Use Value: Eliminates need for external level shifter or P-channel device, reducing BOM count and board area in space-constrained Type-C ports. |
| Portable Medical Device Power Sequencing | Industrial IoT Sensor Node Power Gating |
|
Use Scenario: Sequencing power to analog front-end (AFE), MCU, and wireless transceiver in battery-operated patient monitors. IC Role / Device Role / Timing Role: Precision-controlled power rail enable switch with <1.0µA IDSS leakage to extend battery life between measurements. Use Value: 0.78W power dissipation rating and 162°C/W thermal resistance allow stable operation under 4.2A peak sensor burst currents without heatsinking. |
Use Scenario: Isolating sensor supply rails during sleep mode in LoRaWAN or NB-IoT edge nodes. IC Role / Device Role / Timing Role: Low-quiescent-current load switch with fast turn-on (tD(ON) = 8.1ns) to meet sub-100µs wake-up timing budgets. Use Value: 829.9pF Ciss and 9.6nC Qg ensure minimal gate drive energy consumption (<15nJ per transition), critical for multi-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel low-voltage power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3026LSD-13 | 30V VDSS, 28mΩ @ 4.5V, SOT23-3, same AEC-Q101 grade | Higher voltage margin but higher RDS(ON); less suitable for 1.8V logic drive | Select when system requires >20V transient immunity and gate drive ≥3.3V is available |
| AO3414 | 20V VDSS, 26mΩ @ 4.5V, non-AEC-Q101, SOT23-3, 100nA IGSS | Lacks automotive qualification and has higher gate leakage; lower cost for consumer-grade designs | Choose for cost-sensitive industrial or consumer DC-DC where AEC-Q101 is not mandated |
Compared with DMN3026LSD-13 and AO3414, the DMG3414UQ uniquely balances 1.8V logic compatibility, AEC-Q101 compliance, and 25mΩ RDS(ON)-making it optimal for automotive and portable medical applications demanding both low-voltage drive and reliability assurance.
Availability
DMG3414UQ is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery load switching, and portable medical device power sequencing requiring stable component supply across extended product lifecycles.
Supply support for DMG3414UQ 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 ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
The DMG3414UQ belongs to Diodes' AEC-Q101-qualified low-voltage MOSFET product line, engineered specifically for high-efficiency, space-constrained power-switching applications in automotive and portable electronics.
FAQ
Is DMG3414UQ suitable for high-frequency DC-DC converter operation?
Yes. With 8.1ns turn-on delay, 9.6ns fall time, and 829.9pF input capacitance, the DMG3414UQ supports switching frequencies up to 3MHz in synchronous buck converters. Its low Qg (9.6nC) and Crss (81.2pF) reduce driver losses and improve efficiency at 1–2MHz operating points typical in USB-PD and PoE applications.
What is the maximum continuous drain current at 85°C ambient?
The DMG3414UQ supports 3.2A continuous drain current at TA = +85°C, derated from 4.2A at +25°C per its thermal characteristics. This value assumes mounting on FR-4 PCB with 2oz copper and accounts for RθJA = 162°C/W and junction temperature limit of +150°C.
Does DMG3414UQ include integrated ESD protection?
No. The DMG3414UQ does not integrate ESD protection diodes. Its gate oxide is rated for ±8V VGS, and external TVS or RC filtering is recommended in environments with >2kV HBM risk. Layout best practices-such as minimizing gate loop inductance and using 10Ω series gate resistors-are advised for robustness.
Can DMG3414UQ be used in linear regulator pass transistor applications?
No. The DMG3414UQ is optimized for switching operation only. Its SOA curve is not characterized for linear mode, and sustained operation in the ohmic region risks thermal runaway due to positive temperature coefficient of RDS(ON). It must be operated in saturation or cutoff states per its Safe Operating Area limits in the datasheet.
DMG3414UQ-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):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 4.2A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 25mOhm @ 8.2A, 4.5V
- Vgs(th) (Max) @ Id:
- 900mV @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 9.6 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 829.9 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 780mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DMG3414UQ-13 FAQ
1.How can I place an order for DMG3414UQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMG3414UQ-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 DMG3414UQ-13 reliable?
The price and inventory of DMG3414UQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMG3414UQ-13 is usually 5 days.
3.What payment methods are accepted for DMG3414UQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMG3414UQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMG3414UQ-13?
DMG3414UQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMG3414UQ-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 DMG3414UQ-13?
For technical support, including DMG3414UQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMG3414UQ-13 requirements.
6.How does Aetrix verify that DMG3414UQ-13 is sourced from the original manufacturer or authorized distributors?
All DMG3414UQ-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 DMG3414UQ-13 meets industry standards.
7.What is the process for return or replacement of DMG3414UQ-13?
All DMG3414UQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMG3414UQ-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 DMG3414UQ-13 part is unused and in its original packaging.
Return procedure for DMG3414UQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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