SL2302D N-Channel Low Voltage MOSFET

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SL2302D N-Channel Low Voltage MOSFET | SOT-23 Package

2026-08-24 193

In the circuit design of portable consumer electronics, smart homes, IoT devices, battery protection and miniature power supplies, low-voltage MOSFETs with compact size, low conduction loss, fast switching speed and low driving voltage are core components to ensure stable system operation. The SL2302D is an N-channel enhancement-mode low-voltage MOSFET developed by Slkor Semiconductor using advanced trench technology. Packaged in ultra-compact SOT-23 form factor, it features 20V withstand voltage, 2.5A rated current, ultra-low on-resistance and extremely low threshold voltage. With compact dimension, ultra-low power consumption, sensitive switching performance and high stability, the device is well suited for high-density PCB layouts and serves as a cost-effective domestic alternative for low-power switching, load control and power management applications.

1. Core Electrical Parameters

Device Type: N-Channel Enhancement Mode MOSFET Package: SOT-23 Drain-Source Breakdown Voltage (VDSS): 20V Continuous Drain Current (Id): 2.5A On-Resistance (RDSON): 50mΩ @ VGS=4.5V, ID=2.5A Gate Threshold Voltage (VTH): 0.7V @ 250μA

2. Product Core Advantages

2.1 Ultra-small Package for High-density Design

The SL2302D adopts the industry-standard SOT-23 package with miniaturized size, greatly saving PCB layout space. It is ideal for space-limited terminal products such as portable devices, wearable equipment and miniature smart sensors, enabling thinner and lighter product design.

2.2 Ultra-low On-resistance with Low Loss and Low Heat Generation

With an ultra-low on-resistance of 50mΩ, the device maintains excellent conduction performance at a conventional 4.5V driving voltage. It features extremely low conduction loss and minimal heat generation, ensuring stable operation during long-term continuous switching. It effectively reduces overall power consumption and improves the endurance and reliability of terminal equipment.

2.3 Low Threshold Voltage for Sensitive and Wide-range Driving

The ultra-low gate threshold voltage of 0.7V allows direct driving by single-chip microcomputers, MCU and low-voltage logic circuits without additional amplifier circuits, simplifying peripheral design. Featuring low driving threshold and fast response speed, it delivers sensitive start-stop control and strong adaptability for various low-voltage intelligent control scenarios.

2.4 Stable Current Capacity for Medium and Small Load Switching

Providing a continuous stable current of 2.5A, far exceeding conventional low-voltage MOSFETs in the same package, the SL2302D easily drives medium and small loads such as miniature motors, LED light arrays, buzzers and small solenoid valves. It offers strong load capacity and wide application compatibility.

2.5 Mature Process and Excellent Batch Consistency

Based on Slkor’s mature trench semiconductor process, the SL2302D features minor parameter deviation, stable batch performance, low leakage current and strong anti-interference capability. It supports long-term stable operation, fully meets industrial mass production standards, and can directly replace imported devices of the same specifications.

3. Main Applications

Benefiting from its compact size, low power consumption and fast switching capability, the SL2302D is widely applied in various low-voltage and low-power circuits, including portable consumer electronics, wearable devices, IoT sensors, smart home control modules, LED lighting drivers, battery protection and power management circuits, miniature DC-DC conversion modules, small household appliance control circuits, low-voltage load switches and signal switching units.

4. Engineering Design Guidelines

Voltage Matching: The operating voltage must be kept within the 20V withstand range to avoid breakdown damage. The device is suitable for mainstream 3.3V, 5V and 12V low-voltage systems.

Current Derating: 2.5A is the maximum limit current. Proper current derating is recommended for long-term full-load operation to avoid overheating and aging, extending device service life.

Driving Design: Benefiting from its low threshold voltage, the device can be directly driven by MCU IO ports. Reasonably configure the gate current-limiting resistor to optimize switching speed and suppress oscillation and spike interference.

PCB Layout: Due to the limited heat dissipation area of the SOT-23 package, optimize PCB routing under high-current conditions, widen current paths and shorten loop distance to reduce parasitic impedance and improve heat dissipation and system stability.

5. Product Summary

The SL2302D is a high-performance N-channel low-voltage MOSFET in SOT-23 package. It integrates ultra-small size, 50mΩ ultra-low on-resistance, 0.7V low threshold voltage and 2.5A stable current capacity, featuring low power consumption, low heat generation, fast switching, strong compatibility and high reliability. Fully compatible with mainstream imported models with superior cost performance, the SL2302D is a classic, universal and trustworthy domestic MOSFET solution for low-power switching, power management and intelligent hardware circuit design.

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