The **MLC05-R82M-RC** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converter applications. It belongs to a class of "Molded Power Inductors," which are known for their high current density and low acoustic noise. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify its specific electrical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **MLC** | Series Prefix | Molded Low Core Loss series. | | **05** | Case Size | Refers to the physical dimensions (approx. 5x5 mm). | | **R82** | Inductance Value | **0.82 µH** (R denotes the decimal point). | | **M** | Tolerance | **±20%** tolerance on inductance. | | **RC** | Compliance | RoHS Compliant. | --- ### 2. Key Technical Specifications Based on standard industry data for this specific part type: * **Inductance:** 0.82 µH * **DC Resistance (DCR):** Typically very low (mΩ range) to minimize power loss. * **Isat (Saturation Current):** The current at which inductance drops by a specific percentage (e.g., 20-30%). These are usually rated for high peak currents. * **Irms (Rated Current):** The continuous DC current that causes a specific temperature rise (usually 40°C). * **Operating Temperature:** Typically rated from **-40°C to +125°C**. --- ### 3. Construction & Features The MLC series utilizes specific manufacturing techniques to enhance performance: 1. **Molded Structure:** The coil is embedded in a magnetic metal powder iron core. This "molded" design eliminates the air gap found in traditional ferrite cores, resulting in a **soft saturation** characteristic. 2. **Magnetic Shielding:** The construction naturally provides magnetic shielding, reducing Electromagnetic Interference (EMI) with neighboring components. 3. **Low Buzz Noise:** Because the core is a solid molded block, it is less prone to physical vibrations (magnetostriction), making it ideal for noise-sensitive applications. --- ### 4. Common Applications This inductor is typically found in high-frequency, high-efficiency power circuits: * **Voltage Regulator Modules (VRM):** Used in CPUs and GPUs. * **DC/DC Converters:** Point-of-load (POL) power supplies. * **Battery Powered Devices:** Smartphones, tablets, and notebooks where space is limited and efficiency is critical. * **Automotive Electronics:** Infotainment and ADAS systems (if AEC-Q200 qualified).