The **UT4800-S08-R** is an N-channel enhancement mode Power MOSFET, commonly utilized in power management and switching applications. Below is a detailed technical breakdown of its electronic characteristics and specifications. --- ### 1. General Overview The UT4800 is designed for high-density mounting and efficient heat dissipation. It is typically housed in an **SOP-8** package, which is a standard surface-mount format for power transistors. ### 2. Key Technical Specifications | Parameter | Description | Typical Value | | :--- | :--- | :--- | | **Drain-Source Voltage ($V_{DSS}$)** | Maximum voltage across drain and source | 30V | | **Gate-Source Voltage ($V_{GSS}$)** | Maximum voltage allowed at the gate | ±20V | | **Continuous Drain Current ($I_D$)** | Max current flow at 25°C | ~6.9A to 9.0A | | **Static Drain-Source On-Resistance ($R_{DS(ON)}$)** | Resistance when fully switched on | ~18.5mΩ @ $V_{GS}=10V$ | | **Total Gate Charge ($Q_g$)** | Charge required to turn on the MOSFET | Low (Efficiency benefit) | | **Package Type** | Physical form factor | SOP-8 | ### 3. Features & Benefits * **Low $R_{DS(ON)}$:** Minimizes power loss during conduction, reducing heat generation. * **High Switching Speed:** Allows the component to be used in high-frequency PWM applications. * **Logic Level Compatibility:** Can often be driven directly by microcontrollers or logic ICs (low gate threshold voltage). * **Halogen-Free:** Usually complies with modern environmental standards (depending on the specific "R" suffix variant). ### 4. Typical Applications * **Power Management:** DC-DC converters and motor controllers. * **Battery Protection:** Switching circuits in laptop batteries or portable electronics. * **Load Switching:** Turning peripheral power on/off within a circuit. ### 5. Pin Configuration (SOP-8) | Pin Number | Function | | :--- | :--- | | 1, 2, 3 | **Source (S)** | | 4 | **Gate (G)** | | 5, 6, 7, 8 | **Drain (D)** | --- ### 6. Part Number Breakdown * **UT4800**: Basic series model number. * **S08**: Indicates the **SOP-8** package. * **R**: Typically denotes **Tape and Reel** packaging for automated assembly.