The **UT60T03L-TQ2-R** is a high-power N-Channel enhancement mode MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). It is primarily designed for high-efficiency switching applications, such as power supplies and motor controllers. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics of the UT60T03L: | Parameter | Symbol | Maximum Rating | |:---|:---:|:---| | **Drain-Source Voltage** | $V_{DSS}$ | 30V | | **Gate-Source Voltage** | $V_{GSS}$ | ±20V | | **Continuous Drain Current** | $I_D$ | 60A | | **Drain-Source On-Resistance** | $R_{DS(ON)}$ | ~12 mΩ (at $V_{GS}=10V$) | | **Total Gate Charge** | $Q_g$ | 25 nC (typical) | | **Operating Temperature** | $T_j$ | -55°C to +150°C | --- ### 2. Physical Packaging (TO-263) The part suffix **TQ2** refers to the **TO-263** package (also known as D2PAK). - **Form Factor:** Surface-mount device (SMD). - **Thermal Performance:** Excellent heat dissipation capabilities due to the large metal tab. - **Pin Configuration:** 1. **Gate:** Controls the switching of the MOSFET. 2. **Drain:** Connected to the large metal tab (output). 3. **Source:** Reference point for the gate and output. --- ### 3. Functional Features * **Low On-Resistance ($R_{DS(ON)}$):** Reduces power loss during the "on" state, which improves overall system efficiency and minimizes heat generation. * **High Switching Speed:** Capable of operating at high frequencies, making it suitable for PWM (Pulse Width Modulation) circuits. * **Ruggedness:** Designed to handle high current surges and avalanche energy, providing reliability in inductive load switching. --- ### 4. Common Applications Due to its 60A current rating and low voltage (30V), this MOSFET is typically found in: 1. **DC-DC Converters:** Stepping down voltage in computer motherboards or industrial power modules. 2. **Motor Drivers:** Controlling the speed and direction of small to medium DC motors. 3. **Battery Protection:** Used in BMS (Battery Management Systems) for lithium-ion packs. 4. **Load Switches:** Activating/deactivating specific power rails in electronic systems. --- ### 5. Ordering Information Breakdown The part number can be decoded as follows: - **UT:** UTC (Unisonic Technologies Co.) manufacturer code. - **60T03L:** 60 Amps / 30 Volts / "L" denotes Low Gate Charge or Lead-free. - **TQ2:** TO-263 Package. - **R:** Tape & Reel (Packaging format).