The **UT2340L-AE3-R** is an N-Channel enhancement mode Power MOSFET manufactured by Unisonic Technologies (UTC). It is primarily designed for high-efficiency switching applications, power management, and DC-DC conversion in compact electronic devices. --- ## 1. Technical Specifications The following table outlines the primary electrical characteristics of the UT2340L-AE3-R: | Parameter | Symbol | Maximum Rating | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 40 V | | **Continuous Drain Current** | $I_D$ | 5.2 A | | **Gate-Source Voltage** | $V_{GSS}$ | ±20 V | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | 45 mΩ (at $V_{GS}=10V$) | | **Pulsed Drain Current** | $I_{DM}$ | 20 A | | **Total Gate Charge** | $Q_g$ | 12 nC (typ) | | **Operating Temperature** | $T_j$ | -55 to +150 °C | --- ## 2. Key Features * **Low On-Resistance:** The 45 mΩ resistance minimizes power loss during the conduction state, improving overall energy efficiency. * **High Switching Speed:** Capable of high-frequency operation, making it suitable for modern power converters. * **Low Gate Charge:** Requires minimal energy to trigger the gate, allowing for simpler and lower-power driver circuits. * **SOT-23 Package:** The "AE3" suffix denotes the SOT-23 package, which is a miniature surface-mount package ideal for space-constrained PCB designs. --- ## 3. Pin Configuration The UT2340L-AE3-R follows the standard SOT-23 pinout: 1. **Gate (G):** Controls the flow of current between Drain and Source. 2. **Source (S):** Connected to the lower potential or ground in standard switching. 3. **Drain (D):** Connected to the load. --- ## 4. Typical Applications * **DC-DC Converters:** Used in buck/boost regulators for voltage stepping. * **Battery Protection:** Acts as a switch in battery management systems (BMS). * **Load Switching:** Controlling power delivery to specific peripherals in portable electronics. * **LED Drivers:** Managing current flow for lighting applications. --- ## 5. Ordering Information Decoding The part number can be broken down as follows: * **UT:** Unisonic Technologies (Manufacturer) * **2340:** Model Number / Series * **L:** Lead-free / Halogen-free plating * **AE3:** SOT-23 Package type * **R:** Tape and Reel (Packaging format)