The **UJ0100G-AE3-R** is an N-Channel enhancement mode Power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by **UTC (Unisonic Technologies)**. It is commonly used for high-efficiency switching applications, power supplies, and battery management. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics for the UJ0100G-AE3-R: | Parameter | Symbol | Typical Value | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 100V | | **Continuous Drain Current** | $I_D$ | 1.0A | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | 600 mΩ @ $V_{GS}$ = 10V | | **Gate-Source Voltage** | $V_{GSS}$ | ±20V | | **Package Type** | SOT-23 | Surface Mount (SMD) | | **Operating Temperature** | $T_j$ | -55°C to +150°C | --- ### 2. Physical Characteristics & Pinout The "AE3" suffix typically denotes the **SOT-23** package, which is a small, 3-pin surface-mount device. | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | **Gate (G)** | Controls the conductivity of the device. | | **2** | **Source (S)** | The terminal where the current exits. | | **3** | **Drain (D)** | The terminal where the current enters. | --- ### 3. Features and Advantages * **Low On-Resistance:** Reduces power loss during conduction, improving efficiency. * **High Switching Speed:** Capable of high-frequency operation. * **Small Footprint:** The SOT-23 package is ideal for space-constrained PCB designs. * **Green/Halogen-Free:** The "G" in the part number often indicates compliance with environmental standards (Green package). --- ### 4. Common Applications * **DC-DC Converters:** Used as a switching element to step down/up voltages. * **LED Backlighting:** Driving LED arrays in displays or portable electronics. * **Load Switching:** Acts as a solid-state relay to turn power on/off for specific circuit sections. * **Motor Control:** Small DC motor drivers for low-power robotics. --- ### 5. Part Number Breakdown Understanding the UTC naming convention: * **UJ0100**: Product Series (indicates 100V capability). * **G**: Halogen-Free/Green Product. * **AE3**: Package code for SOT-23. * **R**: Tape & Reel packaging (Standard for automated assembly).