The **UT4812L-S08-R** is a high-performance, Dual N-Channel enhancement mode Power MOSFET manufactured by Unisonic Technologies (UTC). It is primarily designed for power management applications where space is limited and efficiency is critical. --- ## 1. Key Specifications and Features The UT4812L-S08-R is characterized by its low "On-Resistance" and high-speed switching capabilities. | Parameter | Value / Specification | | :--- | :--- | | **Channel Type** | Dual N-Channel | | **Drain-Source Voltage ($V_{DSS}$)** | 30V | | **Continuous Drain Current ($I_D$)** | 6.9A (at $25^{\circ}C$) | | **On-Resistance ($R_{DS(ON)}$)** | $\approx$ 28m$\Omega$ @ $V_{GS}=10V$ | | **Package Type** | SOP-8 (Surface Mount) | | **Gate-Source Voltage ($V_{GS}$)** | $\pm$ 20V | | **Lead-Free Status** | Halogen-Free / RoHS Compliant (Suffix 'L') | --- ## 2. Pin Configuration (SOP-8) In the SOP-8 package, the device integrates two independent N-Channel MOSFETs. | Pin Number | Symbol | Description | | :--- | :--- | :--- | | 1 | S1 | Source 1 | | 2 | G1 | Gate 1 | | 3 | S2 | Source 2 | | 4 | G2 | Gate 2 | | 5, 6 | D2 | Drain 2 | | 7, 8 | D1 | Drain 1 | --- ## 3. Technical Applications Due to its dual-channel configuration and low thermal resistance, this part is commonly found in: * **DC-DC Converters:** Used as a switching element in buck or boost regulators. * **Battery Protection:** Ideal for Li-ion battery management systems. * **Load Switching:** Efficiently turning on/off peripherals in laptops and mobile devices. * **Motor Control:** Driving small DC motors or fan controllers. --- ## 4. Part Number Breakdown Understanding the UTC nomenclature helps identify the specific variant: * **UT4812**: The basic model/series number. * **L**: Indicates **Lead-free** and Halogen-free plating. * **S08**: Refers to the **SOP-8** package. * **R**: Indicates the packing type, typically **Tape and Reel**. ---