The **UT6302L-AE3-R** is a specific N-channel enhancement mode Field Effect Transistor (MOSFET) manufactured by Unisonic Technologies (UTC). It is designed for high-efficiency power management and switching applications. --- ## 1. Technical Specifications The following table highlights the key electrical characteristics of the UT6302L-AE3-R: | Parameter | Symbol | Maximum Rating | | :--- | :--- | :--- | | Drain-Source Voltage | $V_{DSS}$ | 20V | | Gate-Source Voltage | $V_{GSS}$ | ±12V | | Continuous Drain Current | $I_D$ | 3.9A | | Pulsed Drain Current | $I_{DM}$ | 10A | | Drain-Source On-Resistance | $R_{DS(ON)}$ | 60mΩ (at $V_{GS}=4.5V$) | | Total Gate Charge | $Q_g$ | 10nC (typical) | | Package Type | SOT-23 | Surface Mount | --- ## 2. Key Features * **Low On-Resistance:** The low $R_{DS(ON)}$ ensures minimal power loss during the conduction state, improving energy efficiency. * **Logic Level Drive:** It can be fully turned on with low gate voltages, making it compatible with 3.3V and 5V logic from microcontrollers. * **Fast Switching:** Optimized for high-speed switching transitions. * **Miniaturization:** The SOT-23 package is ideal for compact electronic designs where PCB space is limited. --- ## 3. Pin Configuration The UT6302L-AE3-R follows the standard SOT-23 pinout: 1. **Gate (G):** Controls the switching of the MOSFET. 2. **Source (S):** Connected to the ground or the negative side of the load. 3. **Drain (D):** Connected to the load. --- ## 4. Common Applications Due to its specifications, this MOSFET is typically used in the following scenarios: * **Load Switching:** Turning peripheral devices on and off in battery-powered gadgets. * **DC-DC Converters:** Used in buck or boost converters for voltage regulation. * **Battery Protection:** Integrated into BMS circuits to prevent over-discharge. * **LED Driving:** Controlling the power supply to high-brightness LED arrays. --- ## 5. Part Number Breakdown The suffixing usually indicates the following: * **UT6302L:** The base model number. * **AE3:** Refers to the SOT-23 package type. * **R:** Indicates "Tape and Reel" packaging for automated assembly.