The **UT2301G-AE2-R** is a high-performance, P-Channel enhancement mode Field Effect Transistor (MOSFET) manufactured by Unisonic Technologies (UTC). It is primarily designed for high-efficiency power management applications in compact electronic devices. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics of the UT2301G-AE2-R: | Parameter | Specification | Description | |:---|:---|:---| | **Drain-Source Voltage ($V_{DSS}$)** | -20V | Maximum voltage across drain and source. | | **Gate-Source Voltage ($V_{GSS}$)** | ±8V | Maximum voltage allowed at the gate. | | **Continuous Drain Current ($I_D$)** | -2.3A | Maximum continuous current flow. | | **Drain-Source On-Resistance ($R_{DS(ON)}$)** | < 130mΩ | Resistance when the device is fully ON ($V_{GS}=-4.5V$). | | **Package Type** | SOT-23-3 | Small Outline Transistor (Surface Mount). | | **Threshold Voltage ($V_{GS(th)}$)** | -0.4V to -1.0V | Voltage required to begin conduction. | --- ### 2. Pin Configuration The UT2301G-AE2-R follows the standard SOT-23 pinout: 1. **Gate (G):** Controls the switching state of the MOSFET. 2. **Source (S):** The terminal where the majority carriers enter. 3. **Drain (D):** The terminal where the majority carriers exit. --- ### 3. Features and Advantages * **Low On-Resistance:** Reduces power dissipation and heat generation during operation. * **High Switching Speed:** Capable of handling high-frequency PWM signals effectively. * **Low Threshold Voltage:** Can be driven directly by low-voltage logic circuits (e.g., microcontrollers running at 1.8V or 3.3V). * **Halogen-Free:** Compliant with environmental safety standards (indicated by the "G" in the part number). --- ### 4. Typical Applications This MOSFET is commonly found in the following circuits: * **Load Switching:** Turning peripheral devices on/off to save power. * **Battery Protection:** Managing charging and discharging paths in Li-ion battery packs. * **DC-DC Converters:** Used in buck or boost regulators for voltage conversion. * **LED Drivers:** Controlling current flow in small LED arrays. --- ### 5. Part Number Breakdown The nomenclature typically follows this structure: * **UT:** Unisonic Technologies (Manufacturer) * **2301:** Part Series (P-Channel 20V/2.3A) * **G:** Halogen Free and Lead-Free * **AE2:** Package code for SOT-23 * **R:** Tape and Reel packaging