The **UT2306L-AE3-R** is an N-Channel enhancement mode Field Effect Transistor (MOSFET) manufactured by Unisonic Technologies (UTC). It is designed for low-voltage, high-speed switching applications. --- ### 1. Key Technical Specifications The following table outlines the primary electrical characteristics of the UT2306L-AE3-R: | Parameter | Symbol | Maximum Rating | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 30 V | | **Gate-Source Voltage** | $V_{GSS}$ | ±12 V | | **Continuous Drain Current** | $I_D$ | 3.5 A | | **Pulsed Drain Current** | $I_{DM}$ | 10 A | | **Power Dissipation** | $P_D$ | 1.25 W | | **Drain-Source On-Resistance** | $R_{DS(ON)}$ | 55 mΩ (at $V_{GS}=10V$) | | **Package Type** | SOT-23 | SOT-23 (3-pin) | --- ### 2. Functional Features * **Low On-Resistance:** The low $R_{DS(ON)}$ minimizes power loss due to heat during the "ON" state, improving efficiency. * **Low Threshold Voltage:** It is a logic-level MOSFET, meaning it can be fully triggered by low-voltage signals (typical of microcontrollers like Arduino or ESP32). * **Fast Switching Speed:** Designed for high-frequency applications. * **Lead-Free/Halogen-Free:** The "L" in the part number indicates Lead-Free (RoHS compliant), and the suffix "R" typically denotes Tape and Reel packaging. --- ### 3. Pin Configuration (SOT-23) The device follows the standard SOT-23 pinout for MOSFETs: | Pin Number | Name | Description | | :--- | :--- | :--- | | **1** | **G (Gate)** | Controls the "ON" and "OFF" state of the MOSFET. | | **2** | **S (Source)** | Connected to the ground in most N-channel low-side switch circuits. | | **3** | **D (Drain)** | Connected to the load being switched. | --- ### 4. Typical Applications * **Power Management:** Used in DC-DC converters and load switches. * **Battery Protection:** Ideal for portable electronics due to its small SOT-23 footprint. * **Signal Switching:** High-speed switching in telecommunications and computer peripherals. * **LED Driving:** Controlling current flow to LED arrays. ---