The **MLC05-R68M-RC** is a high-performance, surface-mount (SMD) power inductor. This component is typically used in power management circuits for high-frequency DC-DC converters and voltage regulator modules. ### Component Specification Breakdown The part number follows a specific nomenclature that describes its physical and electrical characteristics: | Code Segment | Description | Value/Detail | | :--- | :--- | :--- | | **MLC** | Series Prefix | Molded Low-profile Choke (Metal Alloy) | | **05** | Case Size | Often corresponds to dimensions (approx. 5x5 mm) | | **R68** | Inductance Value | **0.68 µH** (R denotes the decimal point) | | **M** | Tolerance | **±20%** | | **RC** | Compliance | RoHS Compliant | --- ### Key Technical Characteristics Modern molded inductors like this one offer several advantages over traditional wire-wound ferrite cores: #### 1. Material & Construction * **Molded Powder Core:** Made from a metal alloy powder pressed around the copper winding. This construction allows for a "soft saturation" characteristic, meaning the inductance doesn't drop off abruptly when current increases. * **Magnetic Shielding:** The molded body inherently provides excellent electromagnetic interference (EMI) shielding. #### 2. Electrical Performance * **Low DCR (Direct Current Resistance):** Designed to minimize power loss and heat generation. * **High Saturation Current ($I_{sat}$):** Capable of handling high peak currents without the magnetic core saturating. * **Operating Frequency:** Optimized for high-speed switching frequencies (often up to 5 MHz). #### 3. Physical Attributes * **Low Profile:** The "MLC" series is specifically designed for space-constrained applications like laptops, tablets, and thin servers. * **Acoustic Noise Reduction:** The solid molded structure reduces the "buzzing" noise caused by magnetostriction. --- ### Common Applications Due to its 0.68 µH inductance and high current handling, it is commonly found in: * **Graphics Cards (GPUs):** In the VRM (Voltage Regulator Module) stages. * **CPU Power Supplies:** Multi-phase buck converters. * **Battery Powered Devices:** Where efficiency and small footprint are critical. * **Infotainment Systems:** In automotive or industrial computing. ---