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Diodes Incorporated DMNH4011SK3Q-13
- Part No.:
- DMNH4011SK3Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMNH4011SK3Q-13.pdf
- Description:
- MOSFET N-CH 40V 50A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:6,802
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Product details
Overview
DMNH4011SK3Q-13 from Diodes Incorporated is a 40V, 50A N-channel enhancement-mode MOSFET in TO252 (DPAK) package, qualified to AEC-Q101 for automotive use. It delivers 10 mΩ RDS(ON) at VGS = 10 V, supports 175°C junction operation, and features 100% unclamped inductive switching capability - deployed in high-reliability DC-DC converters and power management modules.
For engineers reviewing the DMNH4011SK3Q-13 datasheet, DMNH4011SK3Q-13 pinout, DMNH4011SK3Q-13 application, or DMNH4011SK3Q-13 equivalent, key selection criteria include its 3 °C/W RθJC, 25.5 nC total gate charge, 1,405 pF Ciss, AEC-Q101 qualification status, and TO252 thermal pad layout compatibility.
Technical Context
This MOSFET employs planar silicon process with optimized cell pitch and trench-assisted drift region to achieve low RDS(ON) while maintaining robust avalanche performance (EAS = 100 mJ). Its gate threshold voltage (2–4 V) enables direct drive from 3.3 V and 5 V controllers without level-shifting.
The device integrates a fast, low-VSD body diode (0.9–1.2 V at 20 A), with tRR = 22.1 ns and QRR = 13.4 nC, supporting synchronous rectification and hard-switched topologies where reverse recovery behavior critically impacts efficiency and EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40 V - Maximum blocking voltage in off-state; sets upper limit for input rail in 12 V/24 V automotive systems. |
| RDS(ON) | 8.5–10 mΩ @ VGS = 10 V - Enables <1 W conduction loss at 50 A, critical for thermally constrained power stages. |
| ID (TC = 25°C) | 50 A - Continuous drain current rating at case temperature 25°C; derates to 27 A at 100°C. |
| Qg | 25.5 nC - Total gate charge determines driver strength requirement and switching loss in PWM operation. |
| RθJC | 3 °C/W - Thermal resistance from junction to exposed drain pad; enables high-power dissipation with minimal heatsink area. |
| EAS | 100 mJ - Avalanche energy rating confirms ruggedness under inductive turn-off stress without external snubbers. |
| TJ max | +175°C - Extended junction temperature rating supports operation in engine bay and transmission control units. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed drain pad on bottom for thermal conduction and mechanical anchoring. Molded green compound, UL 94V-0 rated, lead-free and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Main current path from source to load | Connected to large copper pour via exposed pad; primary thermal path and high-current node. |
| Source (S) | Reference node for gate drive and current return | Low-inductance connection point for sense resistor placement and gate driver ground reference. |
| Gate (G) | Control terminal for channel modulation | High-impedance input requiring <2.2 Ω series resistance to damp ringing; sensitive to ESD. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including PPAP submission support and zero-defect manufacturing traceability. |
| 100% UIS tested | Each unit subjected to unclamped inductive switching stress per JEDEC JESD22-A115, ensuring field reliability in motor drives and solenoid controls. |
| Low Ciss / Coss ratio | 1,405 pF / 247 pF - Improves voltage-dependent switching efficiency and reduces Miller plateau duration. |
| Green compound & matte tin finish | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); compliant with automotive OEM environmental requirements. |
| Optimized body diode | tRR = 22.1 ns, QRR = 13.4 nC - Reduces reverse recovery losses in buck and half-bridge configurations. |
Applications
| Automotive DC-DC Converters | Engine Control Unit (ECU) Power Rails |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to 3.3 V/5 V logic rails in ADAS camera modules. IC Role / Device Role: High-side synchronous rectifier switch in 500 kHz buck converter. Use Value: 10 mΩ RDS(ON) minimizes conduction loss at 15 A peak, enabling >94% efficiency at full load and reducing thermal footprint. |
Use Scenario: Load switching for fuel injector drivers and sensor bias supplies in gasoline/diesel ECUs. IC Role / Device Role: Low-side power switch controlling 12 V solenoid loads with PWM duty cycling. Use Value: 175°C rating ensures stable operation near hot engine blocks; 100% UIS testing prevents failure during inductive kickback events. |
| On-Board Charger (OBC) Auxiliary Supplies | Electric Power Steering (EPS) Motor Drivers |
Use Scenario: Isolated auxiliary supply generation (12 V → 5 V) for microcontroller and CAN transceiver in OBC control board. IC Role / Device Role: Primary switch in active clamp forward topology operating at 200 kHz. Use Value: 25.5 nC Qg enables efficient gate driving with low-power 5 V controllers; low Coss improves ZVS margin. |
Use Scenario: Half-bridge leg in 3-phase inverter driving 24 V EPS brushless DC motor. IC Role / Device Role: Low-side switch handling 40 A continuous phase current with 10 kHz PWM. Use Value: 3 °C/W RθJC allows direct mounting to aluminum chassis, eliminating discrete heatsinks and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL130N4LH6AG | RDS(ON) = 1.3 mΩ @ 10 V (lower), but TO263 package; higher Qg = 95 nC; TJ max = 175°C. | Requires larger PCB area and more complex thermal design; better suited for high-efficiency, lower-frequency (>100 kHz) inverters. | Select when ultra-low conduction loss dominates over gate drive complexity and board space. |
| IXTP50N10P | RDS(ON) = 12 mΩ @ 10 V (higher), TO220 package; no AEC-Q101 qualification; TJ max = 175°C. | Lacks automotive qualification and PPAP support; unsuitable for safety-critical vehicle subsystems. | Acceptable only for non-automotive industrial power supplies where qualification is not mandated. |
Compared with STL130N4LH6AG and IXTP50N10P, DMNH4011SK3Q-13 uniquely balances low RDS(ON), moderate Qg, TO252 thermal efficiency, and full AEC-Q101 compliance - making it optimal for space-constrained, high-volume automotive power stages requiring production-grade reliability.
Availability
DMNH4011SK3Q-13 is available at Aetrix Electronics and suitable for automotive DC-DC converters, engine control unit (ECU) power rails, and electric power steering (EPS) motor drivers requiring stable component supply across multi-year vehicle production cycles.
Supply support for DMNH4011SK3Q-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.
This MOSFET belongs to Diodes' Automotive Power Solutions product line, engineered specifically for AEC-Q101-compliant power conversion and load switching in harsh-temperature vehicle environments.
FAQ
Is DMNH4011SK3Q-13 suitable for synchronous rectification in automotive buck converters?
Yes. Its 0.9–1.2 V body diode forward voltage at 20 A and 22.1 ns reverse recovery time enable efficient synchronous rectification in 300–500 kHz buck converters. The low RDS(ON) (10 mΩ) further reduces conduction loss versus Schottky alternatives, especially at elevated temperatures up to 175°C.
What is the recommended PCB layout for thermal performance?
Use a minimum 25 mm² exposed copper pad connected to internal ground plane via ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch). Maintain solder mask opening matching the drain pad outline (5.33 × 6.10 mm), and avoid routing signal traces under the device. Follow Diodes AP02001 pad layout guidelines for optimal RθJA.
Does DMNH4011SK3Q-13 require gate resistors for reliable switching?
Yes. A 2.2 Ω series gate resistor is recommended to damp high-frequency oscillation caused by 2.2 Ω intrinsic gate resistance and PCB parasitics. This value balances switching speed (tr/tf ≈ 3.7/5.1 ns) against EMI and shoot-through risk in half-bridge configurations.
Can DMNH4011SK3Q-13 replace older-generation TO252 MOSFETs in existing designs?
Yes, with verification. Its pin-compatible TO252 footprint, identical drain-source polarity, and improved RDS(ON) (10 mΩ vs. typical 15–20 mΩ) allow drop-in replacement in many legacy automotive power stages. Confirm gate drive voltage compatibility (VGS(th) = 2–4 V) and re-evaluate thermal margins using the lower RθJC (3 °C/W).
DMNH4011SK3Q-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:
- 50A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 10mOhm @ 50A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 25.5 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1405 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.6W (Ta)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
DMNH4011SK3Q-13 FAQ
1.How can I place an order for DMNH4011SK3Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMNH4011SK3Q-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 DMNH4011SK3Q-13 reliable?
The price and inventory of DMNH4011SK3Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMNH4011SK3Q-13 is usually 5 days.
3.What payment methods are accepted for DMNH4011SK3Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMNH4011SK3Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMNH4011SK3Q-13?
DMNH4011SK3Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMNH4011SK3Q-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 DMNH4011SK3Q-13?
For technical support, including DMNH4011SK3Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMNH4011SK3Q-13 requirements.
6.How does Aetrix verify that DMNH4011SK3Q-13 is sourced from the original manufacturer or authorized distributors?
All DMNH4011SK3Q-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 DMNH4011SK3Q-13 meets industry standards.
7.What is the process for return or replacement of DMNH4011SK3Q-13?
All DMNH4011SK3Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMNH4011SK3Q-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 DMNH4011SK3Q-13 part is unused and in its original packaging.
Return procedure for DMNH4011SK3Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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