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Diodes Incorporated DMN3732UQ-13
- Part No.:
- DMN3732UQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMN3732UQ-13.pdf
- Description:
- MOSFET BVDSS: 25V~30V SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,772
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Product details
Overview
DMN3732UQ-13 from Diodes Incorporated is a 30V N-channel enhancement-mode MOSFET in SOT23 package, optimized for low-voltage load switching with RDS(ON) = 460 mΩ @ VGS = 4.5V, ID = 1 A, and VGS(TH) = 0.45–0.95 V. It serves as a compact, AEC-Q101-qualified power switch in portable electronics battery management and USB power delivery paths.
For engineers reviewing the DMN3732UQ-13 datasheet, DMN3732UQ-13 pinout, DMN3732UQ-13 application, or DMN3732UQ-13 equivalent, key selection criteria include gate threshold compatibility with 1.8–3.3 V logic, thermal resistance (RθJA = 192 °C/W on FR-4), and automotive-grade qualification for space-constrained DC-DC and load-switch designs.
Technical Context
This MOSFET employs planar trench-enhanced silicon technology to achieve low RDS(ON) at ultra-low gate drive voltages while maintaining fast switching (tr = 15.9 ns, tf = 20.0 ns) and robust ESD protection on gate terminals. Its 0.42 W steady-state power dissipation rating reflects thermal design constraints of the SOT23 footprint.
The device operates across –55 °C to +150 °C junction temperature range and features a body diode with VSD = 0.8–1.2 V at IS = 300 mA. Gate charge parameters (Qg = 0.9 nC, Qgd = 0.3 nC) support efficient PWM control in high-frequency DC-DC converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 30 V - Maximum drain-source blocking voltage for 12 V/24 V rail applications |
| RDS(ON) | 460 mΩ @ VGS = 4.5 V - Enables <100 mW conduction loss at 1 A load current |
| VGS(TH) | 0.45–0.95 V - Ensures reliable turn-on with 1.8 V GPIO or low-voltage microcontroller outputs |
| ID (max) | 1 A @ TA = +25°C - Supports continuous operation in handheld device power rails |
| Qg | 0.9 nC - Minimizes gate drive power and enables >1 MHz switching in compact regulators |
| RθJA | 192 °C/W - Requires minimal copper area for thermal management on standard FR-4 PCBs |
| ESD Rating | HBM ±2 kV - Integrated gate protection reduces need for external TVS in portable designs |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin–annealed copper leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for load current | Connected to ground or common reference; forms body diode anode |
| 2 (Gate) | Control terminal for channel conduction | Low-threshold input requiring no level-shifting from 1.8–3.3 V logic |
| 3 (Drain) | Power input/output node | Switches 30 V loads; connects to battery, supply rail, or downstream converter input |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VGS(TH) | 0.45–0.95 V enables direct interface with modern low-power MCUs without gate drivers |
| Automotive qualification | AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities |
| Green packaging | Halogen- and antimony-free, RoHS 3 compliant, <900 ppm Br+Cl total |
| Fast switching | tr = 15.9 ns / tf = 20.0 ns supports high-efficiency synchronous rectification |
| Body diode performance | VSD = 0.8 V @ IS = 300 mA reduces reverse recovery losses in buck converters |
Applications
| Smartphone Battery Protection | USB-C Power Delivery Switch |
|---|---|
|
Use Scenario: Isolating main battery from USB-C port during hot-plug events to prevent backfeed and overvoltage. IC Role / Device Role / Timing Role: Low-side load switch controlling power path between battery and Type-C controller IC. Use Value: 460 mΩ RDS(ON) limits voltage drop to <460 mV at 1 A, preserving system efficiency while enabling 1.8 V GPIO control. |
Use Scenario: Enabling/disabling 5 V/9 V/15 V power rails negotiated via USB PD communication protocol. IC Role / Device Role / Timing Role: High-speed power switch responding to PD controller enable signals within <100 µs. Use Value: 0.9 nC Qg allows full turn-on with <100 ns gate pulse, supporting dynamic PD voltage transitions. |
| Automotive Cabin Controller | Wearable Health Monitor Power Rail |
|
Use Scenario: Controlling 12 V accessory loads (LED indicators, sensors) in infotainment head units. IC Role / Device Role / Timing Role: AEC-Q101-compliant discrete switch replacing higher-RDS(ON) alternatives in space-limited modules. Use Value: –55 °C to +150 °C operating range ensures reliability under under-hood thermal cycling. |
Use Scenario: Managing power sequencing between coin-cell battery and ultra-low-power MCU in fitness trackers. IC Role / Device Role / Timing Role: Low-leakage (IDSS ≤ 1 µA) switch isolating battery during sleep mode. Use Value: 0.45 V minimum VGS(TH) guarantees turn-off margin even with aged battery voltage down to 2.2 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3025LSD-13 | RDS(ON) = 25 mΩ @ VGS = 4.5 V, but in larger SOT26 package; higher ID = 3.5 A | Requires more PCB area; suited for higher-current loads where thermal budget permits | Select when >1 A continuous current or lower conduction loss is required; not pin-compatible |
| AO3400A | RDS(ON) = 44 mΩ @ VGS = 10 V, but VGS(TH) = 0.8–1.5 V; non-AEC-Q101 | Lacks automotive qualification and low-VGS drive capability below 2.5 V | Acceptable for consumer-grade portable devices without automotive compliance needs |
Compared with DMN3732UQ-13, DMN3025LSD-13 delivers lower RDS(ON) at cost of board space and pinout mismatch, while AO3400A trades automotive reliability and 1.8 V logic compatibility for marginal RDS(ON) improvement at higher gate voltage.
Availability
DMN3732UQ-13 is available at Aetrix Electronics and suitable for smartphone battery protection, USB-C power delivery switching, and automotive cabin controller applications requiring stable component supply, AEC-Q101 traceability, and SOT23 footprint compatibility.
Supply support for DMN3732UQ-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 distribution operations across Asia, Europe, and the Americas.
The DMN3732UQ belongs to Diodes' high-efficiency, low-voltage MOSFET product line targeting portable and automotive power management, emphasizing low gate threshold, AEC-Q101 compliance, and green packaging.
FAQ
Is DMN3732UQ-13 suitable for 1.8 V GPIO control?
Yes. With a guaranteed VGS(TH) range of 0.45–0.95 V and RDS(ON) = 560 mΩ @ VGS = 2.5 V and 730 mΩ @ VGS = 1.8 V, it reliably turns on using standard 1.8 V logic outputs without external level shifting or gate boosting circuitry.
What is the maximum safe continuous drain current at 70°C ambient?
The datasheet specifies ID = 0.8 A at TA = +70°C under standard FR-4 mounting conditions (2 oz copper, 1-inch square pad). This derating accounts for thermal resistance (RθJA = 192 °C/W) and ensures junction temperature remains below 150°C.
Does DMN3732UQ-13 include integrated ESD protection?
Yes. The device features ESD-protected gate structure rated to ±2 kV per Human Body Model (HBM), as confirmed in the "Features and Benefits" section and validated by Diodes' internal qualification testing-no external gate protection diodes are required in typical portable designs.
Can DMN3732UQ-13 be used in automotive applications?
Yes. It is explicitly AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Its –55 °C to +150 °C operating range, green halogen-free construction, and traceable lot control meet Tier-1 automotive supply chain requirements for cabin electronics and body control modules.
DMN3732UQ-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):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 1A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 460mOhm @ 200mA, 4.5V
- Vgs(th) (Max) @ Id:
- 950mV @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.9 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 40.8 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 420mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DMN3732UQ-13 FAQ
1.How can I place an order for DMN3732UQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN3732UQ-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 DMN3732UQ-13 reliable?
The price and inventory of DMN3732UQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN3732UQ-13 is usually 5 days.
3.What payment methods are accepted for DMN3732UQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN3732UQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN3732UQ-13?
DMN3732UQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN3732UQ-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 DMN3732UQ-13?
For technical support, including DMN3732UQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN3732UQ-13 requirements.
6.How does Aetrix verify that DMN3732UQ-13 is sourced from the original manufacturer or authorized distributors?
All DMN3732UQ-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 DMN3732UQ-13 meets industry standards.
7.What is the process for return or replacement of DMN3732UQ-13?
All DMN3732UQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN3732UQ-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 DMN3732UQ-13 part is unused and in its original packaging.
Return procedure for DMN3732UQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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