Based on the part number **UTM2513-TN3-R**, this is a specialized N-Channel Power MOSFET typically manufactured by **Unisonic Technologies (UTC)**. It is designed for high-speed switching applications and power management. --- ## 1. Technical Specifications The UTM2513-TN3-R is a logic-level MOSFET optimized for low on-resistance and efficient thermal dissipation. | Parameter | Symbol | Value (Typical) | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 20V to 30V | | **Continuous Drain Current** | $I_D$ | 25A - 30A | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | ~13mΩ to 20mΩ | | **Gate-Source Voltage** | $V_{GS}$ | ±20V | | **Package Type** | TO-252 | (DPAK) | | **Configuration** | Single | N-Channel | --- ## 2. Key Electronic Components & Features ### A. The N-Channel Structure As an N-Channel MOSFET, the device remains "OFF" until a positive voltage is applied to the Gate relative to the Source. It is used as a "Low-side switch," meaning it is placed between the load and the ground. ### B. Package: TO-252 (TN3) The suffix **TN3** indicates a **TO-252 package** (also known as DPAK). - **Surface Mount:** Designed for automated assembly. - **Thermal Pad:** The large metal tab on the back is connected to the Drain and acts as a primary heat sink. - **Durability:** Offers a balance between high current capacity and a small physical footprint. ### C. Low Gate Charge ($Q_g$) The internal capacitance of the gate is kept low to allow for high-speed switching. This reduces switching losses, making it suitable for PWM (Pulse Width Modulation) circuits. --- ## 3. Typical Applications The UTM2513 is commonly found in the following electronic circuits: 1. **DC-DC Converters:** Buck or Boost converters for motherboards and laptops. 2. **Motor Drivers:** Controlling small DC motors or brushless fans. 3. **Battery Protection:** Managing the charging and discharging cycles of Li-ion battery packs. 4. **Power Management:** Used in "Load Switches" to turn sections of a circuit on or off to save energy. --- ## 4. Part Number Decoding The suffix provides specific manufacturing details: - **UTM2513:** The base model/series number. - **TN3:** Represents the **TO-252** package type. - **R:** Indicates **Tape and Reel** packaging (standard for high-volume automated manufacturing).