The **0630CDMCDDS-R56MC** is a high-performance, surface-mount (SMD) power inductor. It is part of the metal composite type series, commonly used in power management circuits like DC-DC converters. ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify its physical and electrical characteristics: | Code | Component | Description | | :--- | :--- | :--- | | **0630** | Case Size | Approx. 6.6mm x 6.4mm; Height is 3.0mm | | **CDMC** | Series Type | Metal Compound (Molded) Inductor | | **R56** | Inductance Value | 0.56 Microhenries (µH) | | **M** | Tolerance | ±20% | | **C** | Operating Temp | Standard Industrial Grade (typically up to 125°C) | --- ### 2. Key Specifications The following table outlines the typical electrical behavior for this specific part: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.56 µH | | **DCR (DC Resistance)** | ~6.5 mΩ (Max) | | **Isat (Saturation Current)** | ~18.0 A (Current where inductance drops 30%) | | **Irms (Rated Current)** | ~13.0 A (Current causing 40°C temp rise) | | **Construction** | Metal powder molding (Shielded) | --- ### 3. Core Features and Technology The "Metal Composite" construction offers several advantages over traditional ferrite drum cores: * **Soft Saturation:** Unlike ferrite cores that lose inductance sharply when current limits are exceeded, this part saturates "softly," meaning it maintains functionality even under high transient currents. * **Magnetic Shielding:** The molded construction naturally shields the component, reducing Electromagnetic Interference (EMI) with neighboring components on the PCB. * **High Power Density:** Large current handling capability within a relatively small 6x6mm footprint. * **Low Buzz Noise:** The solid molded structure reduces the physical vibration of the coil, minimizing acoustic noise. --- ### 4. Common Applications This inductor is typically found in high-efficiency power stages including: * **Voltage Regulator Modules (VRM):** For CPUs and GPUs in laptops and servers. * **DC-DC Converters:** Point-of-load (POL) power supplies. * **Automotive Electronics:** Infotainment and LED lighting drivers. * **Battery Powered Devices:** Due to low DCR and high efficiency. ---