The **UT3413L-AE2-R** is a specific P-Channel enhancement mode Field Effect Transistor (MOSFET) manufactured by Unisonic Technologies (UTC). It is designed for high-efficiency power management and switching applications. --- ### ## Technical Specifications Below are the primary electrical characteristics for the UT3413L-AE2-R: | Parameter | Specification | | :--- | :--- | | **Transistor Type** | P-Channel MOSFET | | **Drain-Source Voltage ($V_{DSS}$)** | -20V | | **Gate-Source Voltage ($V_{GSS}$)** | ±8V | | **Continuous Drain Current ($I_D$)** | -3.0A | | **Pulsed Drain Current ($I_{DM}$)** | -10A | | **Power Dissipation ($P_D$)** | 0.9W | | **Drain-Source On-Resistance ($R_{DS(ON)}$)** | < 115mΩ @ $V_{GS}=-4.5V$ | | **Package Type** | SOT-23-3 (AE2) | --- ### ## Key Features * **Low On-Resistance:** Optimized to reduce conduction losses, making it ideal for battery-powered devices. * **Low Threshold Voltage:** Operates effectively at low logic-level voltages. * **High Switching Speed:** Capable of high-frequency operation due to low gate charge. * **Surface Mount Design:** The SOT-23 package allows for compact PCB layouts. --- ### ## Typical Applications The UT3413L is commonly found in the following electronic circuits: 1. **Load Switches:** Used to connect or disconnect a power source to a load. 2. **Power Management:** Found in mobile phones, tablets, and portable electronics. 3. **DC/DC Converters:** Acts as a switching element in buck or boost regulators. 4. **Battery Protection:** Integrated into BMS (Battery Management Systems) for charging/discharging control. --- ### ## Pin Configuration (SOT-23) In the UTC "AE2" package, the pins are typically assigned as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | **G** (Gate) | Controls the state of the MOSFET | | 2 | **S** (Source) | Connection point for the input voltage (P-Channel) | | 3 | **D** (Drain) | Connection point for the load | ---