### Overview of MLC20-R68M-RC The **MLC20-R68M-RC** is a high-performance, surface-mount (SMD) power inductor. It is designed primarily for use in DC-DC converters, voltage regulator modules (VRMs), and power supplies where high efficiency and high current handling are required in a compact footprint. --- ### Technical Specifications The part number defines its core electrical characteristics. Below is a breakdown of the technical parameters: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.68 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **DC Resistance (DCR)** | Typ: ~10.6 mΩ / Max: ~12.2 mΩ | | **Saturation Current ($I_{sat}$)** | ~8.0 A to 9.5 A (Typical) | | **Heating Current ($I_{rms}$)** | ~6.5 A to 7.5 A (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Case Size** | 2020 (Metric: 5050) - approx. 5.0 x 5.0 mm | --- ### Key Features and Construction 1. **Shielded Construction:** * The "MLC" series typically features a magnetically shielded design. This minimizes Electromagnetic Interference (EMI), preventing the inductor's magnetic field from affecting surrounding components on the PCB. 2. **Molded Iron Powder Core:** * Constructed using a metal powder molding process. This allows for a "soft saturation" characteristic, meaning the inductance drops gradually rather than abruptly as current increases. 3. **Low DCR:** * The low direct current resistance reduces power loss through heat, making it highly efficient for battery-operated devices. 4. **RoHS Compliant:** * The "-RC" suffix generally indicates RoHS Compliance, meaning the component is lead-free. --- ### Typical Applications The MLC20-R68M-RC is commonly found in the following electronic circuits: * **Smartphones and Tablets:** Used in the power management units (PMIC) to handle high-speed switching. * **Laptops and Servers:** Found in the Buck converters that step down voltage for CPUs and GPUs. * **SSD Drives:** Used in the power rails to ensure stable voltage delivery. * **Automotive Infotainment:** Provides power filtering and regulation in dashboard electronics. --- ### Part Number Breakdown * **MLC:** Series identifier (typically Molded Power Inductor). * **20:** Size code (often refers to the dimensions, e.g., 2.0mm height or a 20xx footprint). * **R68:** Inductance value ($0.68 \mu H$). * **M:** Tolerance ($\pm 20\%$). * **RC:** RoHS Compliant.