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Diodes Incorporated DMTH47M2SK3-13
- Part No.:
- DMTH47M2SK3-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMTH47M2SK3-13.pdf
- Description:
- MOSFET BVDSS: 31V~40V TO252 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:7,962
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Product details
Overview
DMTH47M2SK3-13 from Diodes Incorporated is a 40V, 62A N-channel enhancement-mode MOSFET in TO252 (DPAK) package, featuring 7.5mΩ RDS(ON) at VGS = 10V, 100% production-tested UIS, and rated for continuous operation up to +175°C junction temperature - deployed in high-efficiency DC-DC converters and LED backlighting power stages.
For engineers reviewing the DMTH47M2SK3-13 datasheet, DMTH47M2SK3-13 pinout, DMTH47M2SK3-13 application, or DMTH47M2SK3-13 equivalent, key selection criteria include RDS(ON) stability over temperature, low Qg (12.1nC), thermal resistance (RθJC = 3°C/W), and TO252 package compatibility with high-current PCB layouts.
Technical Context
This MOSFET employs planar trench-gate technology optimized for low conduction loss and fast switching in synchronous buck topologies. Its 6.2mΩ typical RDS(ON) at 20A/10V and 12.1nC total gate charge enable high-frequency operation with minimal switching losses.
The device integrates a robust body diode with 39.1ns reverse recovery time and 53.3nC QRR, supporting hard-switched and quasi-resonant converter designs. Its 30.5mJ avalanche energy rating ensures reliability under inductive load transients without external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40V - Maximum drain-source blocking voltage for 12V/24V input rail applications |
| RDS(ON) Max | 7.5mΩ @ VGS = 10V - Enables ≤0.93W conduction loss at 35A continuous current |
| ID Max (TC = 25°C) | 62A - Supports high-current power stages without forced air cooling |
| Qg | 12.1nC - Reduces gate drive power and enables <1MHz PWM operation with standard drivers |
| TJ Range | −55°C to +175°C - Qualified for under-hood automotive and industrial motor control environments |
| EAS | 30.5mJ - Withstands unclamped inductive switching events in solenoid or relay drivers |
| RθJC | 3°C/W - Allows direct thermal coupling to heatsink via exposed drain pad for efficient heat extraction |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed drain pad for thermal and electrical connection. Molded plastic housing rated UL 94V-0; matte tin annealed terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (S) | Low-side reference node; connects to ground or return path in buck/boost configurations |
| Pin 2 (Gate) | Control input (G) | High-impedance MOSFET gate requiring <2.1Ω series resistance to damp ringing |
| Pin 3 (Drain) | Power output (D) | Exposed copper pad - electrically and thermally connected to drain; must be routed to high-current net |
Key Features
| Feature | Design Value |
|---|---|
| +175°C rated junction temperature | Enables deployment in engine bay, industrial drives, and sealed enclosures without derating |
| 100% production UIS tested | Guarantees avalanche ruggedness across full production lot - no screening failures in field |
| Low Qg/Qgd ratio (12.1nC / 1.9nC) | Improves Miller immunity and reduces shoot-through risk in half-bridge configurations |
| Green, halogen-free, RoHS-compliant | Meets IEC 61249-2-21 and automotive ELV directive requirements for sustainable manufacturing |
| Low RDS(ON) temperature coefficient | Normalized RDS(ON) increases only ~1.8× from 25°C to 175°C - maintains efficiency at high ambient |
Applications
| Automotive DC-DC Converters | LCD Backlight LED Drivers |
|---|---|
|
Use Scenario: 12V-to-5V/3.3V step-down conversion for infotainment and ADAS ECUs in vehicles with ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: High-side synchronous rectifier in buck converter, switching at 300–500kHz with precise duty-cycle control. Use Value: 7.5mΩ RDS(ON) minimizes conduction loss at 25A load, improving system efficiency by ≥1.2% versus 10mΩ alternatives. |
Use Scenario: Constant-current LED string driver for automotive instrument clusters and center displays operating at 40V bus voltage. IC Role / Device Role / Timing Role: Low-side PWM switch controlling LED current in boost-based constant-current topology. Use Value: 175°C rating allows placement near display heat sources without thermal throttling or derating. |
| Industrial Motor Control | Server VRM Power Stages |
|
Use Scenario: Half-bridge leg in 24V/48V BLDC gate driver modules for HVAC blowers and pump controllers. IC Role / Device Role / Timing Role: Low-side switch handling 40A peak currents during commutation with <12ns turn-off fall time. Use Value: 30.5mJ EAS withstands inductive kickback from motor windings without clamping diodes. |
Use Scenario: Multiphase buck power stage in 48V-to-1V VRM for AI accelerators and high-end CPUs. IC Role / Device Role / Timing Role: High-current phase-leg FET with low Qg enabling efficient 1MHz+ operation and tight transient response. Use Value: 12.1nC Qg reduces gate drive loss by 22% compared to 15.5nC competitors at same frequency. |
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 |
|---|---|---|---|
| STL130N4F7AG | RDS(ON) = 3.7mΩ @ 10V but rated only to +150°C; TO263 package; higher Qg (22nC) | Better conduction loss at low TJ, but unsuitable for >150°C ambient or space-constrained TO252 footprints | Select when thermal margin exists and lower RDS(ON) outweighs temperature and layout constraints |
| IPB120N04S4-02 | RDS(ON) = 2.0mΩ @ 10V; TO263; AEC-Q101 qualified; 150°C max TJ; Qg = 28nC | Automotive-qualified with tighter parametric distribution, but higher switching loss and larger footprint | Choose for production automotive programs requiring PPAP and AEC-Q101 compliance |
Compared with STL130N4F7AG and IPB120N04S4-02, DMTH47M2SK3-13 delivers optimal balance of high-temperature capability (+175°C), compact TO252 footprint, and moderate gate charge - making it preferred for industrial and non-AEC automotive power stages where thermal headroom and board area are critical.
Availability
DMTH47M2SK3-13 is available at Aetrix Electronics and suitable for automotive DC-DC converters, LCD backlight LED drivers, and industrial motor control systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DMTH47M2SK3-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This MOSFET belongs to Diodes' "PowerMOS" product line, engineered specifically for high-current, high-temperature power conversion in automotive, industrial, and computing applications - emphasizing ruggedness, thermal performance, and production-tested reliability.
FAQ
What is the maximum continuous drain current at TC = +70°C?
The DMTH47M2SK3-13 supports 44A continuous drain current at case temperature of +70°C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits of the TO252 package and ensures safe operation without exceeding the 175°C junction temperature limit under typical PCB copper thermal bias conditions.
Is this MOSFET suitable for use in an AEC-Q101 qualified design?
No - DMTH47M2SK3-13 is not AEC-Q101 qualified. While it operates up to +175°C and meets automotive-grade thermal and UIS requirements, Diodes does not list it in their AEC-Q101 product catalog. For AEC-Q101 compliance, contact Diodes directly for qualified alternatives such as the DMT6004LPS series.
What is the recommended gate resistor value for 500kHz switching?
A 2.2Ω to 4.7Ω gate resistor is recommended for 500kHz operation, balancing switching speed against gate drive overshoot and EMI. With Qg = 12.1nC and typical gate driver output impedance, this range achieves ~10ns rise/fall times while damping resonance caused by Lg and Ciss interaction.
Does the body diode support synchronous rectification?
No - the integrated body diode has 39.1ns reverse recovery time and 53.3nC QRR, making it unsuitable for synchronous rectification above ~100kHz. It is designed for freewheeling and clamping roles in hard-switched topologies, not zero-voltage switching (ZVS) or active rectification.
DMTH47M2SK3-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 62A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 7.5mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 12.1 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 897 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 3.5W (Ta), 50W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
DMTH47M2SK3-13 FAQ
1.How can I place an order for DMTH47M2SK3-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMTH47M2SK3-13 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 DMTH47M2SK3-13 reliable?
The price and inventory of DMTH47M2SK3-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMTH47M2SK3-13 is usually 5 days.
3.What payment methods are accepted for DMTH47M2SK3-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMTH47M2SK3-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMTH47M2SK3-13?
DMTH47M2SK3-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMTH47M2SK3-13 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 DMTH47M2SK3-13?
For technical support, including DMTH47M2SK3-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMTH47M2SK3-13 requirements.
6.How does Aetrix verify that DMTH47M2SK3-13 is sourced from the original manufacturer or authorized distributors?
All DMTH47M2SK3-13 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 DMTH47M2SK3-13 meets industry standards.
7.What is the process for return or replacement of DMTH47M2SK3-13?
All DMTH47M2SK3-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMTH47M2SK3-13, 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 DMTH47M2SK3-13 part is unused and in its original packaging.
Return procedure for DMTH47M2SK3-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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