The **UT3413G-AE3-R** is a high-performance, P-Channel enhancement mode Field Effect Transistor (MOSFET) produced by Unisonic Technologies (UTC). It is designed specifically for low-voltage applications where high-speed switching and low power loss are critical. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the UT3413G-AE3-R: | Parameter | Symbol | Value | Unit | | :--- | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | -20 | V | | **Gate-Source Voltage** | $V_{GSS}$ | ±8 | V | | **Continuous Drain Current** | $I_D$ | -3.0 | A | | **Pulsed Drain Current** | $I_{DM}$ | -10 | A | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | 85 (typ) @ -4.5V | mΩ | | **Power Dissipation** | $P_D$ | 0.9 | W | | **Package Type** | SOT-23 | AE3 | - | --- ### 2. Physical and Part Number Breakdown The suffixing in the part number provides specific information regarding the packaging and material: * **UT3413**: The base model series. * **G**: Halogen-free and Lead-free (Green). * **AE3**: Refers to the **SOT-23** package type. * **R**: Tape and Reel packaging for automated assembly. ### 3. Features and Advantages * **Low On-Resistance:** Minimizes conduction losses, which is vital for extending battery life in portable electronics. * **Fast Switching Speed:** High-speed response for PWM and power management. * **Small Footprint:** The SOT-23 package allows for high-density circuit board layouts. * **Logic Level Drive:** Can be triggered by low voltage levels, making it compatible with various microcontrollers. ### 4. Typical Applications This MOSFET is commonly found in the following circuits: 1. **Load Switches:** Controlling power rails in mobile devices. 2. **Battery Management:** Protection circuits and charging paths. 3. **DC-DC Converters:** Used in low-power buck or boost regulators. 4. **LED Drivers:** Small-scale lighting control. --- ### 5. Schematic Symbol & Pinout The SOT-23 package typically follows this standard configuration: ```text SOT-23 Top View _______ G | 1 3 | D (Drain) | | S | 2 | --------- 1: Gate | 2: Source | 3: Drain ```