The **UT3413L-AE3-R** is a specific P-Channel enhancement mode Power 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 core electrical characteristics of the device: | Parameter | Symbol | Typical Value | | :--- | :--- | :--- | | **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 | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | 110mΩ @ $V_{GS}$ = -4.5V | | **Package Type** | SOT-23 | AE3 (UTC Code) | --- ### 2. Functional Features * **Low On-Resistance:** Optimized to reduce conduction losses, making it efficient for battery-powered devices. * **Low Threshold Voltage:** Operates effectively at low gate drive voltages, allowing it to interface directly with logic-level signals. * **High-Speed Switching:** Designed for rapid transitions between ON and OFF states. * **Green Product:** Typically halogen-free and RoHS compliant (indicated by the suffix "-R" for Reel/RoHS). --- ### 3. Pin Configuration (SOT-23) The "AE3" package refers to the standard SOT-23 surface-mount package. The pinout is usually as follows: 1. **Gate (G):** Controls the state of the MOSFET. 2. **Source (S):** Connected to the positive supply in typical P-Channel configurations. 3. **Drain (D):** Connected to the load. --- ### 4. Common Applications Due to its small footprint and P-channel characteristics, the UT3413L is frequently used in: * **Load Switching:** Turning power rails on or off in portable electronics. * **Power Management:** Used in DC-DC converters and battery charging circuits. * **Battery Protection:** Protecting lithium-ion cells from over-discharge. * **LED Drivers:** Small-scale switching for lighting components. --- ### 5. Part Number Decoding * **UT:** Unisonic Technologies (Manufacturer). * **3413:** Model Number / Series. * **L:** Lead-free plating (Halogen free). * **AE3:** SOT-23 Package type. * **R:** Tape and Reel packaging.