My Inquiry
My Account
Diodes Incorporated DMN2040UQ-13
- Part No.:
- DMN2040UQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMN2040UQ-13.pdf
- Description:
- MOSFET BVDSS: 8V~24V SOT23 T&R 1
- Quantity:
- Payment:
- Shipping:
Inventory:8,318
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DMN2040UQ from Diodes Incorporated is an AEC-Q101-qualified N-channel enhancement-mode MOSFET in SOT23 package, rated for 20V VDSS, 25mΩ RDS(ON) @ 4.5V VGS, and 6.0A continuous drain current at +25°C. It serves as a low-voltage power switch in automotive body electronics, including LED lighting control and ECU power-rail sequencing.
For engineers reviewing the DMN2040UQ datasheet, DMN2040UQ pinout, DMN2040UQ application, or DMN2040UQ equivalent, key selection criteria include its 2.5V gate-threshold compatibility with 3.3V logic, low 667pF Ciss for fast switching, AEC-Q101 qualification, and thermal resistance of 92°C/W under enhanced PCB layout.
Technical Context
This MOSFET employs planar trench-gate silicon technology optimized for low RDS(ON) at low gate drive voltages (2.5V–4.5V), enabling direct interface with automotive microcontrollers without level-shifting. Its 83pF Crss and 7.5nC total gate charge support high-frequency PWM operation up to 1MHz in DC-DC synchronous rectification.
The device integrates a robust body diode with 12ns reverse recovery time and 3.4nC QRR, suitable for freewheeling in inductive load switching. Thermal design is constrained by RθJA = 92°C/W on 1-inch² copper, limiting steady-state power dissipation to 1.36W at ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20V - Maximum blocking voltage for 12V automotive systems with transient margin |
| RDS(ON) | 25mΩ @ 4.5V VGS - Enables ≤150mW conduction loss at 6A, critical for thermally constrained modules |
| ID (max) | 6.0A @ +25°C - Supports high-side/low-side switching in 5W–10W power stages |
| Ciss | 667pF - Low input capacitance reduces gate drive power and enables clean 10ns-scale switching edges |
| tRR | 12ns - Fast body diode recovery minimizes shoot-through risk in half-bridge configurations |
| VGS(TH) | 0.5–1.2V - Guaranteed turn-on with 3.3V MCU GPIO, eliminating need for external gate drivers |
| Qg | 7.5nC - Enables <1μs full-switching cycle with 10Ω gate resistor, supporting >500kHz PWM |
Pinout & Package
Package: SOT23 - Surface-mount plastic package (2.4mm × 1.3mm × 1.0mm), moisture sensitivity level 1, matte tin-plated copper leadframe, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for channel conduction | Connected to ground or low-side reference; forms cathode of integrated body diode |
| 2 (Gate) | Control terminal for channel formation | High-impedance input requiring <100nA leakage budget; sensitive to ESD per HBM 2kV |
| 3 (Drain) | Main current output terminal | Connected to load or supply rail; carries full switched current and withstands 20V transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature range (−55°C to +150°C) and vibration/shock per IATF 16949 process controls |
| Low RDS(ON) at 2.5V | 33mΩ ensures reliable switching even with degraded gate drive due to PCB trace resistance or MCU voltage droop |
| Green packaging | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), compliant with RoHS 3 and automotive ELV directives |
| Fast tF/tR | 9.4ns fall time and 5.1ns rise time minimize switching losses in battery-powered applications |
| Low Coss | 91pF output capacitance reduces Miller effect and improves stability in high-side switch configurations |
Applications
| Automotive LED Headlamp Dimming | Body Control Module Load Switching |
|---|---|
|
Use Scenario: PWM-controlled current regulation for adaptive front-lighting systems with dynamic beam shaping. IC Role / Device Role / Timing Role: Low-side switch modulating LED string current at 1–20kHz with precise duty-cycle control. Use Value: 25mΩ RDS(ON) limits I²R loss to <100mW at 2A, enabling compact thermal design without heatsink. |
Use Scenario: Controlled power-up sequencing of infotainment subsystems and sensor clusters during vehicle ignition. IC Role / Device Role / Timing Role: High-reliability power-enable switch triggered by CAN/LIN microcontroller GPIO. Use Value: AEC-Q101 qualification and 150°C TJ(max) ensure uninterrupted operation during under-hood thermal cycling. |
| Engine Control Unit (ECU) Fan Drive | Electric Power Steering (EPS) Sensor Bias Supply |
|
Use Scenario: Driving brushed DC cooling fans in engine bay environments subject to 125°C ambient and load dump transients. IC Role / Device Role / Timing Role: Robust N-channel switch interfacing between 3.3V MCU and 12V fan motor with flyback protection. Use Value: 30A pulsed current rating and 12ns tRR prevent latch-up during inductive kickback events. |
Use Scenario: Providing stable 5V bias to Hall-effect torque sensors in EPS motor assemblies. IC Role / Device Role / Timing Role: Low-noise, low-leakage power switch enabling sensor sleep/wake transitions with <100nA off-state current. Use Value: ±100nA IGSS and <1µA IDSS preserve battery life over multi-year vehicle service intervals. |
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-13 | Higher RDS(ON) (32mΩ @ 4.5V), same SOT23 package and AEC-Q101 rating | Suitable where thermal margin allows higher conduction loss; lower cost alternative for non-critical loads | Select when BOM cost reduction outweighs 28% higher I²R loss at full load |
| NTMFS4C08NT1G | Lower RDS(ON) (1.9mΩ @ 4.5V), but in SO-8FL package - not pin-compatible | Requires PCB redesign; intended for higher-power (>15A) applications with active thermal management | Choose only if system-level thermal budget permits larger footprint and higher current capability |
Compared with DMN2040UQ, DMN2041UQ trades conduction efficiency for cost in identical form factor, while NTMFS4C08NT1G delivers superior RDS(ON) at the expense of package compatibility and board space - making DMN2040UQ the optimal balance for space-constrained 6A automotive switches.
Availability
DMN2040UQ is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, and ECU power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.
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, specializing in high-reliability components for automotive, industrial, and computing markets.
The DMN2040UQ belongs to Diodes' AEC-Q101-qualified automotive MOSFET product line, engineered specifically for low-voltage, high-efficiency switching in harsh-environment electronic control units and lighting modules.
FAQ
Is DMN2040UQ suitable for hot-swap applications?
Yes - its 20V VDSS, 30A pulsed current rating, and 12ns reverse recovery time enable safe insertion into live 12V systems. The 33mΩ RDS(ON) at 2.5V gate drive ensures turn-on before bus voltage collapse during plug-in events, and its AEC-Q101 qualification guarantees reliability under repeated thermal stress.
What is the maximum PCB copper area needed to achieve 1.36W power dissipation?
To sustain 1.36W continuously, the datasheet specifies a 1-inch² (645 mm²) copper pad on FR-4 with 2oz copper thickness. This layout achieves RθJA = 92°C/W, limiting junction temperature rise to 125°C above ambient at +25°C - sufficient for most under-dash automotive locations.
Does DMN2040UQ require external gate resistors for EMI control?
Yes - a 10Ω series gate resistor is recommended to dampen ringing caused by 7.5nC Qg and 667pF Ciss interacting with PCB trace inductance. This value balances switching speed (tR/tF ~5–10ns) and radiated emissions, especially critical in CAN/LIN network proximity.
Can DMN2040UQ replace older SOT23 MOSFETs like DMN2004K in existing designs?
Yes - it shares identical SOT23 pinout (G-S-D), 20V rating, and 3.3V logic compatibility, but offers 35% lower RDS(ON) (25mΩ vs. 38mΩ) and AEC-Q101 qualification. No layout change is needed, and thermal performance improves significantly under identical load conditions.
DMN2040UQ-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:
- 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-13 FAQ
1.How can I place an order for DMN2040UQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN2040UQ-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 DMN2040UQ-13 reliable?
The price and inventory of DMN2040UQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN2040UQ-13 is usually 5 days.
3.What payment methods are accepted for DMN2040UQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN2040UQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN2040UQ-13?
DMN2040UQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN2040UQ-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 DMN2040UQ-13?
For technical support, including DMN2040UQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN2040UQ-13 requirements.
6.How does Aetrix verify that DMN2040UQ-13 is sourced from the original manufacturer or authorized distributors?
All DMN2040UQ-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 DMN2040UQ-13 meets industry standards.
7.What is the process for return or replacement of DMN2040UQ-13?
All DMN2040UQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN2040UQ-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 DMN2040UQ-13 part is unused and in its original packaging.
Return procedure for DMN2040UQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DMN2040UQ-13 Tags
-
BSZ180P03NS3EGATMA1
Infineon Technologies
-
SIRA14DP-T1-GE3
Vishay Siliconix
-
AO4419
Alpha & Omega Semiconductor Inc.
-
SISA14BDN-T1-GE3
Vishay Siliconix
-
PSMN9R5-30YLC,115
Nexperia USA Inc.
-
BUK9Y21-40E,115
Nexperia USA Inc.
-
RTQ035N03HZGTR
Rohm Semiconductor
-
FDMS7680
onsemi
-
RQ3E180BNTB
Rohm Semiconductor
-
STL6N2VH5
STMicroelectronics
-
DMPH4029LFGQ-7
Diodes Incorporated
-
DMT6015LSS-13
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
