The **CTMLP100804CF-R47** is a surface-mount power inductor belonging to the **molded power inductor** category. It is specifically designed for high-density power applications where space is limited and efficiency is critical. --- ### 1. Technical Specifications Breakdown The part number provides specific details about the component's physical and electrical characteristics: | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.47 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M' typically, or part series standard) | | **Case Size (Metric)** | 2520 (2.5mm x 2.0mm) | | **Case Size (Inch)** | 1008 (1.0" x 0.8") | | **Height** | 1.0 mm (approximate, varies by specific sub-series) | | **Core Material** | Metal Alloy (Molded construction) | --- ### 2. Key Features The "Molded" construction (Metal Alloy) offers several advantages over traditional ferrite wire-wound inductors: * **Soft Saturation:** Unlike ferrite cores that drop inductance sharply when current increases, the metal alloy core has a gradual saturation curve. * **Magnetic Shielding:** The molded body acts as a natural shield, minimizing Electromagnetic Interference (EMI) with surrounding components. * **High Current Density:** Capable of handling higher DC currents relative to its small footprint. * **Low DCR:** It features low DC Resistance, which reduces power loss and heat generation. --- ### 3. Application Use Cases This specific inductor (0.47µH) is commonly found in high-frequency switching environments: 1. **DC-DC Converters:** Used in "Buck" (step-down) converters for smartphones, tablets, and wearables. 2. **Point of Load (POL):** Providing stable power to CPUs, GPUs, and FPGAs on dense PCBs. 3. **Battery Powered Devices:** Ideal for applications where high efficiency is required to extend battery life. --- ### 4. Circuit Symbol and Footprint In a schematic and PCB layout, the part is represented as follows: ```text Schematic Symbol: L1 ---(uuu)--- 0.47uH PCB Layout Tip: - Ensure the ground plane is not directly under the inductor pads to reduce parasitic capacitance. - Use wide traces to accommodate the high current ratings. ```