The **EXL1V0503-R82-R** is a high-current, shielded power inductor typically used in DC-DC converter applications. It belongs to a class of surface-mount (SMD) components designed for high efficiency and high power density. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | ~11.0 A (Typical) | | **Saturation Current (Isat)** | ~16.0 A (Typical) | | **DC Resistance (DCR)** | ~7.2 mΩ (Max) | | **Operating Temperature** | -55°C to +125°C | | **Package Size** | 5.5 x 5.3 x 3.0 mm (Approx.) | | **Shielding** | Magnetically Shielded | --- ### 2. Part Number Breakdown The nomenclature typically follows this structure: * **EXL:** Series identifier (Metal composite core for high saturation). * **1V:** Voltage/Material classification code. * **0503:** Physical dimensions (5.5mm x 5.3mm x 3.0mm). * **R82:** Inductance value ($0.82 \mu H$). * **R:** Tolerance or packaging suffix (usually indicates Tape & Reel). --- ### 3. Key Features & Materials * **Metal Composite Core:** Unlike traditional ferrite inductors, these use a metal powder core. This allows for **soft saturation** characteristics, meaning the inductance drops gradually rather than abruptly when current increases. * **Magnetic Shielding:** The construction minimizes Electromagnetic Interference (EMI), making it suitable for densely packed circuit boards. * **Low DCR:** The low DC resistance minimizes power loss through heat, increasing the overall efficiency of the power supply. --- ### 4. Common Applications This inductor is commonly integrated into the following systems: 1. **Voltage Regulator Modules (VRM):** Used in laptops and desktop motherboards. 2. **Point of Load (POL) Converters:** Distributed power architectures. 3. **DC-DC Step-Down (Buck) Converters:** High-frequency switching power supplies. 4. **Automotive Electronics:** Infotainment and ADAS sensors (if AEC-Q200 qualified). ---