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Diodes Incorporated DMN4030LK3Q-13
- Part No.:
- DMN4030LK3Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMN4030LK3Q-13.pdf
- Description:
- MOSFET N-CH 40V 9.4A TO252 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:3,818
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Product details
Overview
DMN4030LK3Q-13 from Diodes Incorporated is a 40V N-channel enhancement-mode MOSFET in TO252 (DPAK) package, rated for 9.6A continuous drain current at VGS = 10V and 30mΩ RDS(ON), qualified to AEC-Q101 and manufactured in IATF 16949-certified facilities for automotive power-management functions including DC-DC converters and LED backlighting.
For engineers reviewing the DMN4030LK3Q-13 datasheet, DMN4030LK3Q-13 pinout, DMN4030LK3Q-13 application, or DMN4030LK3Q-13 equivalent, key selection criteria include its 40V VDSS, 30mΩ/50mΩ RDS(ON) at 10V/4.5V, 135ns body diode tRR, thermal resistance of 2.46°C/W (junction-to-case), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This MOSFET operates as a unidirectional high-side or low-side switch in automotive power rails, supporting pulse-width modulated (PWM) control with 12.9nC total gate charge at VGS = 10V and 6.5nC at 4.5V. Its 604pF input capacitance and 59.6pF reverse transfer capacitance enable stable switching up to several hundred kHz in synchronous buck topologies.
The device integrates a fast-recovery body diode (tRR = 135ns, QRR = 799nC) optimized for freewheeling in DC-DC converters. Thermal design is anchored by RθJC = 2.46°C/W and RθJA = 29.9°C/W on 50mm × 50mm 2oz FR-4 PCB, enabling sustained 4.18W dissipation under steady-state conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40V - Maximum blocking voltage across drain-source; defines safe operating range in 12V/24V automotive systems. |
| RDS(ON) | 30mΩ @ VGS = 10V - On-resistance determines conduction loss in high-current paths; enables ≤3.6W I²R loss at 9.6A. |
| ID | 9.6A @ TA = +25°C - Continuous DC current rating; derates to 7.7A at +70°C ambient per thermal limits. |
| tRR | 135ns - Body diode reverse-recovery time; minimizes switching loss and voltage overshoot during hard commutation. |
| Qg | 12.9nC @ VGS = 10V - Total gate charge dictates driver strength requirement; supports efficient 500kHz+ PWM operation. |
| RθJC | 2.46°C/W - Junction-to-case thermal resistance; enables direct heatsinking via drain pad for high-power density layouts. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including temperature cycling, HTRB, and ESD testing per stress test plan. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, single-ended drain tab for thermal and electrical connection. Molded plastic housing with matte tin-plated copper leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Main current-carrying terminal (connected to exposed pad) | Primary heat path and high-current node; requires large copper pour for thermal management and low-inductance routing. |
| Source (S) | Reference node for gate drive and current return path | Common reference for gate control logic; forms low-impedance return path for load current and body diode conduction. |
| Gate (G) | Control electrode for channel formation | High-impedance input requiring <13nC charge; sensitive to ringing-requires local gate resistor and short trace routing. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) at 4.5V | 50mΩ - Enables efficient operation directly from 5V logic-level gate drivers without level-shifting circuitry. |
| Fast body diode recovery | tRR = 135ns - Reduces switching losses and EMI in synchronous rectification and flyback converter freewheeling phases. |
| AEC-Q101 qualification | PPAP-capable with IATF 16949 manufacturing - Ensures supply chain traceability, change control, and failure rate compliance for automotive OEMs. |
| Green packaging | Halogen- and antimony-free, RoHS 3 compliant - Meets EU environmental directives with <900ppm Br/Cl and <1000ppm Sb compounds. |
Applications
| Automotive DC-DC Converters | LED Backlighting Drivers |
|---|---|
Use Scenario: Step-down conversion from 12V battery rail to 3.3V/5V for infotainment and ADAS modules. IC Role / Device Role / Timing Role: Low-side synchronous rectifier in buck converter topology, switching at 200–500kHz. Use Value: 30mΩ RDS(ON) and 135ns tRR reduce conduction and recovery losses, improving efficiency >92% at 5A output. |
Use Scenario: Constant-current switching for LCD panel edge-lit LED strings in instrument clusters and center displays. IC Role / Device Role / Timing Role: High-side PWM dimming switch controlling LED current path with 100Hz–20kHz duty-cycle modulation. Use Value: 9.6A rating and 50mΩ RDS(ON) at 4.5V support direct microcontroller GPIO drive while maintaining <0.5V dropout at full brightness. |
| Engine Control Unit Power Switching | Body Control Module Load Driving |
Use Scenario: 12V load switching for fuel pump drivers, solenoid actuators, and ignition coil pre-drivers. IC Role / Device Role / Timing Role: High-current, high-reliability power switch with integrated body diode for inductive kickback clamping. Use Value: AEC-Q101 qualification and 37.7A pulsed current rating ensure robust operation under cold-crank (6V) and load-dump (40V) transients. |
Use Scenario: Driving door locks, window motors, HVAC blowers, and interior lighting in centralized body electronics units. IC Role / Device Role / Timing Role: Low-side load switch with diagnostic feedback via sense resistor integration capability. Use Value: 2.46°C/W RθJC allows direct thermal coupling to PCB ground plane, sustaining 7.4A continuous current at +85°C ambient. |
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 |
|---|---|---|---|
| STL10DN4LF5 | 40V, 10A, RDS(ON) = 28mΩ @ 10V; DFN3333 package (no exposed drain pad) | Limited thermal performance due to higher RθJA (62°C/W); unsuitable for >3W continuous dissipation without external heatsink | Prefer for space-constrained PCBs where thermal budget is low and peak current <6A |
| ON Semiconductor NTMFS4C026NT1G | 40V, 11.5A, RDS(ON) = 26mΩ @ 10V; SO-8FL package with dual drain pads | Higher gate charge (14.5nC) increases driver loss; not AEC-Q101 qualified (only PPAP-capable) | Prefer when higher current headroom is needed and AEC-Q101 is not mandated by system safety requirements |
Compared with STL10DN4LF5 and NTMFS4C026NT1G, DMN4030LK3Q-13 delivers superior thermal management via TO252's low RθJC, guaranteed AEC-Q101 qualification for functional safety compliance, and optimized gate charge for efficient 4.5V logic-level drive-making it the preferred choice for thermally demanding automotive power stages.
Availability
DMN4030LK3Q-13 is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED backlighting systems, and body control module load switching requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant traceability.
Supply support for DMN4030LK3Q-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, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certification.
The DMN4030LK3Q belongs to Diodes' Automotive-Qualified Power MOSFET product line, engineered specifically for robustness in 12V/24V vehicle electrical systems-including start-stop, battery management, and lighting control-with emphasis on low RDS(ON), fast switching, and PPAP-ready documentation.
FAQ
Is DMN4030LK3Q-13 suitable for high-frequency switching above 1MHz?
No-its 604pF Ciss and 12.9nC Qg result in significant gate-drive power loss and slower edge rates above 500kHz. For >1MHz operation, consider devices with <5nC Qg and <300pF Ciss, such as the DMN3029LSD-13, which trades off RDS(ON) for speed.
Can DMN4030LK3Q-13 be used in parallel configurations?
Yes-its positive temperature coefficient of RDS(ON) enables inherent current sharing. However, layout symmetry (matched gate and source inductance) and individual gate resistors (≥5Ω) are required to prevent oscillation and ensure balanced dynamic current distribution across paralleled units.
What is the maximum allowable PCB copper area for thermal performance?
Per datasheet Note 5, optimal thermal performance uses a 50mm × 50mm × 1.6mm FR-4 board with full 2oz copper coverage on one side. Increasing copper area beyond this yields diminishing returns; adding internal planes or thermal vias to inner layers improves junction-to-ambient resistance by ≤15%.
Does DMN4030LK3Q-13 support 3.3V gate drive?
No-it is not specified for reliable enhancement-mode operation below VGS = 4.5V. At 3.3V, RDS(ON) exceeds 120mΩ (typical), causing excessive conduction loss. Use logic-level variants like DMN3029LSD-13 (VGS(TH) = 0.6–1.2V) for true 3.3V-compatible switching.
DMN4030LK3Q-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:
- 9.4A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 30mOhm @ 12A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 12.9 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 604 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.14W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
DMN4030LK3Q-13 FAQ
1.How can I place an order for DMN4030LK3Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN4030LK3Q-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 DMN4030LK3Q-13 reliable?
The price and inventory of DMN4030LK3Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN4030LK3Q-13 is usually 5 days.
3.What payment methods are accepted for DMN4030LK3Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN4030LK3Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN4030LK3Q-13?
DMN4030LK3Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN4030LK3Q-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 DMN4030LK3Q-13?
For technical support, including DMN4030LK3Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN4030LK3Q-13 requirements.
6.How does Aetrix verify that DMN4030LK3Q-13 is sourced from the original manufacturer or authorized distributors?
All DMN4030LK3Q-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 DMN4030LK3Q-13 meets industry standards.
7.What is the process for return or replacement of DMN4030LK3Q-13?
All DMN4030LK3Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN4030LK3Q-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 DMN4030LK3Q-13 part is unused and in its original packaging.
Return procedure for DMN4030LK3Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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