The **UT3P01ZG-AE2-R** is a specific P-Channel Enhancement Mode Power MOSFET (Field Effect Transistor) manufactured by **Unisonic Technologies Co., Ltd (UTC)**. It is designed primarily for power management and switching applications in compact electronic devices. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics for the UT3P01ZG-AE2-R: | Parameter | Symbol | Maximum Rating | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | -30 V | | **Gate-Source Voltage** | $V_{GSS}$ | ±20 V | | **Continuous Drain Current** | $I_D$ | -3.0 A | | **Pulsed Drain Current** | $I_{DM}$ | -12.0 A | | **Total Power Dissipation** | $P_D$ | 0.9 W | | **Package Type** | SOT-23-3 | Surface Mount | --- ### 2. Functional Characteristics * **P-Channel Logic:** This MOSFET is a P-channel device, meaning it is typically used on the "high side" of a circuit. It turns **ON** when the gate voltage is sufficiently lower (more negative) than the source voltage. * **Low On-Resistance ($R_{DS(ON)}$):** It is engineered to have low resistance when fully conducting, which minimizes power loss and heat generation. * **Fast Switching:** Optimized for high-speed switching applications, reducing energy loss during the transition between ON and OFF states. * **Low Threshold Voltage:** It can often be triggered by logic-level signals, making it compatible with microcontrollers. --- ### 3. Pin Configuration (SOT-23) The device follows the standard SOT-23 pinout: | Pin Number | Name | Description | | :--- | :--- | :--- | | **1** | **G** (Gate) | Controls the state of the MOSFET | | **2** | **S** (Source) | Connected to the positive supply (in typical high-side use) | | **3** | **D** (Drain) | Connected to the load | --- ### 4. Typical Applications The UT3P01ZG-AE2-R is commonly found in the following scenarios: * **Load Switching:** Turning peripheral devices on or off in battery-powered electronics. * **Power Management:** Used in DC-DC converters and battery protection circuits. * **Motor Control:** Small DC motor drivers. * **LED Driving:** Switching LED arrays in portable devices. --- ### 5. Part Number Breakdown (UTC Naming Convention) * **UT:** Unisonic Technologies (Manufacturer). * **3P01:** Product series (indicating ~3A rating and specific voltage class). * **ZG:** Halogen-free and Lead-free (Green) version. * **AE2:** Package code for **SOT-23-3**. * **R:** Tape and Reel packaging.