## Detailed Analysis of EXL1V0402-R82-R The **EXL1V0402-R82-R** is a high-performance, surface-mount power inductor typically used in high-frequency DC-DC converter applications. This specific part number follows standard naming conventions for electronic components where the alphanumeric code defines its physical and electrical characteristics. ### 1. Component Specifications Below are the key technical parameters for this part: | Feature | Specification | | :--- | :--- | | **Component Type** | Fixed Power Inductor | | **Inductance** | 0.82 µH (Microhenries) | | **Case Size (Imperial)** | 0402 | | **Case Size (Metric)** | 1005 | | **Tolerance** | Typically ±20% | | **Material Core** | Metal Alloy (High Saturation) | | **Shielding** | Shielded (Molded construction) | --- ### 2. Breakdown of the Part Number The part number can be decoded as follows: * **EXL**: Series identifier (often refers to high-current, low-profile molded inductors). * **1V**: Voltage or specific material grade designation within the manufacturer's catalog. * **0402**: Physical dimensions. Note that in power inductors, "0402" can sometimes refer to the metric size (1.0mm x 0.5mm) or a proprietary series size; always verify the datasheet for exact footprint dimensions. * **R82**: The Inductance value. The "R" acts as a decimal point. `R82 = 0.82 µH`. * **R**: Generally denotes the packaging type (e.g., Tape & Reel). --- ### 3. Key Features and Applications #### Features * **High Saturation Current:** The metal alloy core allows the inductor to handle high peak currents without the inductance dropping sharply. * **Low DCR (DC Resistance):** Designed to minimize power loss and heat generation. * **Magnetic Shielding:** The molded structure reduces Electromagnetic Interference (EMI), making it suitable for densely packed PCBs. #### Typical Applications 1. **Smartphones and Tablets:** Voltage regulation for CPUs and GPUs. 2. **Wearable Electronics:** Due to the small form factor. 3. **SSD/Storage:** Power management stages in solid-state drives. 4. **DC-DC Converters:** High-efficiency point-of-load (POL) converters. --- ### 4. Implementation Example (Schematic Context) In a buck converter circuit, this inductor is placed between the switching node and the output capacitor. ```markdown [Switching Node] ---- [EXL1V0402-R82-R] ---- [Output Vout] | [Filter Capacitor] | [GND] ```