The **MLC20-R10M-RC** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converters and power management modules. This part is designed for high-frequency applications where high current handling and low power loss are critical. ### 1. Technical Specifications The following table outlines the key electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.10 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **DC Resistance (DCR)** | Typ: ~0.85 mΩ / Max: ~1.0 mΩ | | **Saturation Current (Isat)** | ~40A - 50A (Depending on specific series Rev) | | **Heat Rating Current (Irms)** | ~30A - 35A | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | Approx. 10mm x 11mm (Large format) | --- ### 2. Breakdown of the Part Number Understanding the nomenclature helps identify the component's role in a circuit: * **MLC**: Series code (usually indicates a Molded Inductor with a metal alloy powder core). * **20**: Size/Dimension code (referring to the physical footprint and height). * **R10**: Inductance value. "R" acts as a decimal point, so R10 = **0.10 µH**. * **M**: Tolerance code (**±20%**). * **RC**: Denotes **RoHS Compliant**, meaning the part is free from restricted hazardous substances like lead. --- ### 3. Key Electronic Features * **Molded Construction:** The coil is encapsulated in a metallic iron powder composite. This provides "soft saturation" characteristics, meaning the inductance doesn't drop off abruptly when current increases. * **Low DCR:** Because it has a very low DC resistance, it generates minimal heat, making it highly efficient for high-current power rails. * **Magnetic Shielding:** The molded structure naturally shields the component, reducing Electromagnetic Interference (EMI) with surrounding components on the PCB. * **High Frequency:** Optimized for use in high-speed switching regulators (MHz range). --- ### 4. Common Applications * **Voltage Regulator Modules (VRMs):** Found in motherboards and servers to power CPUs/GPUs. * **DC/DC Converters:** Used in point-of-load (POL) power supplies. * **Battery Powered Systems:** High efficiency helps extend battery life in portable high-power electronics. * **Automotive/Industrial:** Used in power distribution units where ruggedness and temperature stability are required.