Diodes Incorporated DMN33D8LTQ-13
- Part No.:
- DMN33D8LTQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- SOT-523
- Datasheet:
-
DMN33D8LTQ-13.pdf
- Description:
- MOSFET N-CH 30V 115MA SOT523
- Quantity:
- Payment:

- Shipping:

Inventory:10,000
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Product details
Overview
DMN33D8LTQ-13 from Diodes Incorporated is an AEC-Q101-qualified N-channel enhancement-mode MOSFET in SOT523 package, rated for 30V VDSS, 5Ω RDS(ON) @ VGS = 4V, and 115mA continuous drain current at +25°C. It features 2kV ESD-protected gate, low input capacitance (48pF Ciss), and fast switching (tD(ON) = 2.9ns), targeting automotive load switching and DC-DC converter control.
For engineers reviewing the DMN33D8LTQ-13 datasheet, DMN33D8LTQ-13 pinout, DMN33D8LTQ-13 application, or DMN33D8LTQ-13 equivalent, key selection criteria include its AEC-Q101 qualification, low RDS(ON) at 2.5V–4V gate drive, thermal resistance of 420°C/W on FR-4 with copper plate, and SOT523 footprint compatibility with space-constrained automotive modules.
Technical Context
This MOSFET operates as a low-voltage, low-current single-N-channel switch optimized for automotive-grade reliability. Its gate threshold voltage (0.8–1.5V) enables robust turn-on with 2.5V logic-level drive, while its 7Ω RDS(ON) @ VGS = 2.5V supports efficient operation in battery-powered subsystems.
The device integrates an intrinsic body diode (VSD ≤ 1.2V @ IS = 115mA) and exhibits low dynamic parameters: Qg = 0.55nC @ VGS = 4.5V and Crss = 8pF, enabling high-frequency switching in compact DC-DC regulators and motor gate drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 30V - Maximum drain-source blocking voltage for 12V automotive rail protection |
| RDS(ON) | 5Ω @ VGS = 4V - Ensures <100mW conduction loss at 10mA load in low-power control paths |
| ID (cont) | 115mA @ TA = +25°C - Supports signal-level switching and biasing in sensor interfaces and LED drivers |
| Ciss | 48pF - Minimizes gate drive power and improves noise immunity in high-density PCB layouts |
| tD(ON) | 2.9ns - Enables >100MHz switching in synchronous buck controllers with minimal dead-time penalty |
| ESD Rating | 2kV HBM - Protects gate oxide during automated assembly and in-vehicle ESD events per ISO 10605 |
| TJ Range | −55°C to +150°C - Validated for under-hood and cabin electronics across full automotive temperature range |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic case (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, lead-free matte tin terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Gate (G) | Control electrode | Receives logic-level voltage to modulate channel conductivity; ESD-protected with 2kV HBM rating |
| Source (S) | Reference node for gate drive and current return path | Connected to system ground or low-side reference; forms body diode anode |
| Drain (D) | Power output terminal | Switches load current up to 115mA; exposed pad not present in SOT523; thermal path via PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP support and IATF 16949 manufacturing |
| Low RDS(ON) at 2.5V | 7Ω enables direct interface with 2.5V/3.3V microcontrollers without level-shifting |
| Small SOT523 footprint | 1.6mm × 1.6mm area saves >60% board space vs. SOT23 in multi-rail ECUs |
| Fast switching speed | Combined tD(ON) + tR = 5.5ns reduces switching losses in 1–5MHz DC-DC stages |
| Green construction | Halogen- and antimony-free, RoHS 3 compliant (Br+Cl <1500ppm, Sb <1000ppm) |
Applications
| Brushless DC Motor Control | DC-DC Converters |
|---|---|
Use Scenario: Low-side current sensing and phase commutation in 12V automotive fan modules. IC Role / Device Role / Timing Role: N-channel load switch controlling motor winding current with precise timing via MCU PWM. Use Value: 5Ω RDS(ON) at 4V gate drive limits conduction loss to <20mW per phase at 20mA sense current. | Use Scenario: Synchronous rectification in 5V-to-3.3V buck converters for infotainment SoC power rails. IC Role / Device Role / Timing Role: Low-side switch in synchronous buck topology, driven by integrated controller's complementary output. Use Value: 48pF Ciss and 0.55nC Qg minimize gate drive loss and enable stable 2MHz operation. |
| Automotive Load Switching | LED Driver Circuits |
Use Scenario: Controlled power enable for HVAC control panel backlighting and sensor biasing. IC Role / Device Role / Timing Role: High-reliability discrete switch replacing integrated load switches where BOM cost and footprint are critical. Use Value: AEC-Q101 qualification and −55°C to +150°C operation ensure functional safety compliance without derating. | Use Scenario: Constant-current sink for status LEDs in ADAS camera modules and dashboard indicators. IC Role / Device Role / Timing Role: Current-regulating pass element in linear LED driver configuration with external sense resistor. Use Value: 115mA ID rating supports up to 8 parallel LEDs at 15mA each with margin for ambient temperature rise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3026LFG-7 | 30V, 2.6Ω RDS(ON) @ VGS = 4.5V, SOT323 package (larger footprint) | Higher current capability (280mA), less suitable for ultra-compact layouts | Select when lower RDS(ON) and higher ID outweigh board space constraints |
| NX3020NAK,115 | 30V, 4.5Ω RDS(ON) @ VGS = 4.5V, XSON-3 (1.0 × 1.0 mm) package | Smaller footprint but no AEC-Q101 qualification; intended for industrial/commercial use | Select only for non-automotive designs requiring maximum miniaturization without automotive certification |
Compared with DMN3026LFG-7 and NX3020NAK,115, the DMN33D8LTQ-13 uniquely balances AEC-Q101 compliance, SOT523 miniaturization, and 2.5V logic compatibility-making it optimal for space-limited automotive subsystems where qualification and gate-drive simplicity are mandatory.
Availability
DMN33D8LTQ-13 is available at Aetrix Electronics and suitable for brushless DC motor control, DC-DC converters, and automotive load switching requiring stable component supply across production lifecycles.
Supply support for DMN33D8LTQ-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, serving automotive, industrial, computing, and consumer markets with a focus on reliability and efficiency.
The DMN33D8LTQ-13 belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, designed specifically for automotive power management and signal switching where miniaturization, low-voltage drive, and qualification integrity are essential.
FAQ
What is the maximum continuous drain current for DMN33D8LTQ-13 at +85°C ambient?
At TA = +85°C, the maximum continuous drain current is derated to approximately 75mA, based on the device's 240mW power dissipation limit and 521°C/W junction-to-ambient thermal resistance on standard FR-4 PCB layout. This value assumes no additional copper heatsinking and accounts for thermal runaway margin.
Does DMN33D8LTQ-13 require a gate resistor for safe switching in 12V automotive circuits?
No external gate resistor is required for basic switching, as the device's low Qg (0.55nC) and fast tR/tF allow clean edges even with MCU GPIO drive. However, a 10–47Ω series resistor is recommended to dampen ringing in high-noise environments or when routing long traces near CAN/LIN buses.
Can DMN33D8LTQ-13 be used in reverse-biased configurations, such as high-side load switching?
No-it is a standard N-channel MOSFET with source tied to the lowest potential in normal operation. For high-side switching, a P-channel device (e.g., DMN3025LFG-7) or N-channel with charge pump is required. The body diode conducts from source to drain, making reverse connection unsafe for blocking.
Is the SOT523 package of DMN33D8LTQ-13 compatible with standard reflow profiles for lead-free assembly?
Yes-the SOT523 package is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1 (unlimited floor life at ≤30°C/60% RH). Peak reflow temperature must not exceed 260°C, and the profile must comply with Diodes' recommended ramp rates and time-above-liquidus (60–90 seconds).
DMN33D8LTQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 115mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.5V, 4V
- Rds On (Max) @ Id, Vgs:
- 5Ohm @ 10mA, 4V
- Vgs(th) (Max) @ Id:
- 1.5V @ 100µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.55 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 48 pF @ 5 V
- FET Feature:
- -
- Power Dissipation (Max):
- 240mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DMN33D8LTQ-13 FAQ
1.How can I place an order for DMN33D8LTQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN33D8LTQ-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 DMN33D8LTQ-13 reliable?
The price and inventory of DMN33D8LTQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN33D8LTQ-13 is usually 5 days.
3.What payment methods are accepted for DMN33D8LTQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN33D8LTQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN33D8LTQ-13?
DMN33D8LTQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN33D8LTQ-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 DMN33D8LTQ-13?
For technical support, including DMN33D8LTQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN33D8LTQ-13 requirements.
6.How does Aetrix verify that DMN33D8LTQ-13 is sourced from the original manufacturer or authorized distributors?
All DMN33D8LTQ-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 DMN33D8LTQ-13 meets industry standards.
7.What is the process for return or replacement of DMN33D8LTQ-13?
All DMN33D8LTQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN33D8LTQ-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 DMN33D8LTQ-13 part is unused and in its original packaging.
Return procedure for DMN33D8LTQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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