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Diodes Incorporated DMN2040UQ-7
- Part No.:
- DMN2040UQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMN2040UQ-7.pdf
- Description:
- MOSFET BVDSS: 8V~24V SOT23 T&R 3
- Quantity:
- Payment:
- Shipping:
Inventory:7,716
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Product details
Overview
DMN2040UQ from Diodes Incorporated is an AEC-Q101-qualified N-channel enhancement-mode MOSFET in SOT23 package, rated for 20V VDSS, 25 mΩ RDS(ON) at VGS = 4.5V and 6.0A ID at TA = +25°C, designed for automotive power-management and general-purpose interfacing switches.
For engineers reviewing the DMN2040UQ datasheet, DMN2040UQ pinout, DMN2040UQ application, or DMN2040UQ equivalent, this part supports low-voltage DC-DC load switching, battery protection circuits, and automotive body electronics where AEC-Q101 qualification, low gate charge (7.5 nC), and fast switching (tF = 9.4 ns) are critical selection criteria.
Technical Context
This MOSFET operates as a single N-channel silicon switch with gate threshold voltage of 0.5–1.2 V, enabling direct drive from 3.3 V and 5 V microcontrollers. Its low RDS(ON) and 667 pF Ciss support high-efficiency, high-frequency switching in space-constrained automotive modules.
The device integrates a body diode with VSD = 0.7–1.2 V at IS = 1 A and exhibits robust thermal performance: RθJA = 92 °C/W on 1-inch2 copper, supporting continuous operation up to TJ = +150°C under defined PCB layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20 V - Maximum drain-source blocking voltage; suitable for 12 V automotive systems with transient margin. |
| RDS(ON) | 25 mΩ @ VGS = 4.5 V, ID = 8.2 A - Enables <150 mW conduction loss at 6 A, reducing thermal stress in compact layouts. |
| Qg | 7.5 nC - Low total gate charge minimizes driver power and enables efficient PWM control at >1 MHz frequencies. |
| tF | 9.4 ns - Fast fall time reduces switching transition losses in high-speed load switching applications. |
| ID (max) | 6.0 A @ TA = +25°C - Continuous current rating sufficient for automotive LED drivers and ECU power rails. |
| Ciss | 667 pF - Input capacitance impacts gate drive strength requirements; compatible with standard logic-level drivers. |
| TJ range | −55°C to +150°C - Full automotive temperature range compliance per AEC-Q101, validated across extreme thermal cycling. |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-annealed copper leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for channel conduction | Connected to ground or low-side reference; body diode anode; requires low-impedance PCB trace for thermal and current handling. |
| 2 (Gate) | Control terminal for channel formation | High-impedance input requiring <100 nA leakage; driven by MCU GPIO or dedicated gate driver; sensitive to ESD. |
| 3 (Drain) | Power output terminal | Connects to load or supply rail; carries full switched current; thermally coupled to die via exposed pad (no internal thermal pad in SOT23). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP support and IATF 16949 manufacturing; eliminates requalification effort for Tier 1 designs. |
| Low RDS(ON) at 2.5 V drive | 33 mΩ @ VGS = 2.5 V - enables reliable turn-on from low-voltage MCUs and battery-backed controllers. |
| Low Ciss and Qgd | Ciss = 667 pF, Qgd = 2.5 nC - reduces Miller effect and improves switching controllability in high-dV/dt environments. |
| Green, RoHS-compliant construction | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); fully compliant with EU RoHS 2015/863/EU and JIS C 0950. |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Load Switch |
|---|---|
Use Scenario: Controlling power to door locks, interior lighting, and window lift motors in 12 V vehicle architectures. IC Role / Device Role: Low-side load switch managing up to 6 A resistive/inductive loads with integrated body diode freewheeling. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; 25 mΩ RDS(ON) limits self-heating during extended duty cycles. |
Use Scenario: Enabling/disabling VBUS power path in portable USB-C accessories with 3.3 V or 5 V logic control. IC Role / Device Role: Single N-channel power switch placed between source and load, controlled by system MCU GPIO. Use Value: 7.5 nC Qg allows clean turn-on/turn-off without external gate resistor tuning; SOT23 footprint saves board area in space-limited dongles. |
| Industrial Sensor Node Power Gating | Smartphone Battery Protection Circuit |
Use Scenario: Isolating sensor subsystems during sleep mode to reduce quiescent current in battery-powered IIoT nodes. IC Role / Device Role: High-side or low-side power gate controlled by ultra-low-power MCU with 2.5 V–4.5 V GPIO. Use Value: 33 mΩ RDS(ON) at VGS = 2.5 V ensures minimal voltage drop and leakage (<1 µA IDSS) preserves battery life over months. |
Use Scenario: Secondary overcurrent protection switch placed between battery cell and system PMIC in smartphones. IC Role / Device Role: Fast-acting current-limiting switch activated by fuel gauge or protection IC during fault events. Use Value: 9.4 ns tF and 21 ns tD(OFF) enable sub-microsecond fault isolation; AEC-Q101 grade adds process consistency for high-volume mobile production. |
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 |
|---|---|---|---|
| DMN2041UQ-7 | Same SOT23 package, but P-channel; VDSS = −20 V, RDS(ON) = 32 mΩ @ VGS = −4.5 V | Requires high-side configuration with inverted logic; not drop-in compatible for low-side use | Select only when high-side switching topology and complementary drive are required. |
| NTMFS4C06NT1G | SO-8FL package, 20 V, 3.2 mΩ RDS(ON) @ 4.5 V, higher current (27 A), no AEC-Q101 certification | Higher power density but lacks automotive qualification; larger footprint and thermal mass | Prefer for industrial non-automotive applications needing lower RDS(ON) and higher ID. |
Compared with DMN2040UQ, DMN2041UQ enables high-side switching but requires redesign of gate drive and layout, while NTMFS4C06NT1G delivers superior conduction efficiency at the cost of automotive compliance and board space-making DMN2040UQ optimal for AEC-Q101–mandated, space-constrained low-to-mid power switching.
Availability
DMN2040UQ is available at Aetrix Electronics and suitable for automotive body electronics, USB-C accessory power management, and industrial sensor node power gating requiring stable component supply across multi-year production cycles.
Supply support for DMN2040UQ 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.
The DMN2040UQ belongs to Diodes' AEC-Q101-qualified automotive MOSFET product line, engineered specifically for reliable low-voltage power switching in harsh-temperature, high-reliability vehicle subsystems.
FAQ
Is DMN2040UQ suitable for high-side switching configurations?
No-DMN2040UQ is an N-channel MOSFET optimized for low-side switching. High-side use would require gate voltage boosted above the source potential, which is impractical in its SOT23 package without external charge pump circuitry. For high-side applications, Diodes offers complementary P-channel devices like DMN2041UQ.
What is the maximum safe operating junction temperature for continuous operation?
The absolute maximum junction temperature is +150°C, and the device is characterized for continuous operation up to this limit when mounted on a 1-inch² copper pad (RθJA = 92 °C/W). Derating is required above TA = +70°C per the datasheet's ID vs. TA curve, with 4.8 A maximum at +70°C ambient.
Does DMN2040UQ include integrated ESD protection on the gate?
Yes-the gate oxide is rated for ±12 V VGSS, and the device passes HBM ESD testing per AEC-Q101 requirements. However, it does not include on-chip Zener clamps; external gate resistors and TVS diodes are recommended in high-noise automotive environments per Diodes' application guidelines.
Can DMN2040UQ be used in DC-DC converter synchronous rectification?
No-it is not specified or characterized for synchronous rectifier operation. The body diode recovery time (tRR = 12 ns) and QRR = 3.4 nC are typical for switching, but lack the optimized reverse recovery profile and SOA derating required for high-frequency synchronous rectification in buck converters.
DMN2040UQ-7 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:
- 6A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 25mOhm @ 8.2A, 4.5V
- Vgs(th) (Max) @ Id:
- 1.2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 7.5 nC @ 4.5 V
- Vgs (Max):
- ±12V
- Input Capacitance (Ciss) (Max) @ Vds:
- 667 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 800mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DMN2040UQ-7 FAQ
1.How can I place an order for DMN2040UQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN2040UQ-7 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 DMN2040UQ-7 reliable?
The price and inventory of DMN2040UQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN2040UQ-7 is usually 5 days.
3.What payment methods are accepted for DMN2040UQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN2040UQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN2040UQ-7?
DMN2040UQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN2040UQ-7 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 DMN2040UQ-7?
For technical support, including DMN2040UQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN2040UQ-7 requirements.
6.How does Aetrix verify that DMN2040UQ-7 is sourced from the original manufacturer or authorized distributors?
All DMN2040UQ-7 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 DMN2040UQ-7 meets industry standards.
7.What is the process for return or replacement of DMN2040UQ-7?
All DMN2040UQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMN2040UQ-7, 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 DMN2040UQ-7 part is unused and in its original packaging.
Return procedure for DMN2040UQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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