The **FDV0530-H-R20M** is a high-performance fixed inductor, typically manufactured by **Murata** (formerly TOKO). It is part of the FDV series, designed specifically for high-current, high-efficiency power applications. --- ### 1. Technical Specifications The part number itself contains encoded data regarding its physical size and electrical properties. | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.20 µH (Microhenries) | | **Tolerance** | ±20% (indicated by "M") | | **Dimensions (LxW)** | 5.0 mm x 5.0 mm (approx.) | | **Height** | 3.0 mm (Max) | | **DC Resistance (DCR)** | Extremely low (typically < 1.5 mΩ) | | **Rated Current** | Very High (typically 15A - 20A range) | | **Core Material** | Metal Alloy (Magnetic Powder) | --- ### 2. Key Features The FDV0530 series is characterized by several engineering advantages: * **Magnetic Shielding:** The metal alloy construction provides excellent electromagnetic interference (EMI) shielding, preventing the inductor from interfering with nearby components. * **Soft Saturation:** Unlike ferrite inductors, these have a "soft" saturation curve. This means the inductance drops gradually as current increases, preventing sudden circuit failures. * **Low DCR:** The use of thick wire and high-quality core materials minimizes power loss through heat (Joule heating). * **Heat Resistance:** The "-H" designation often signifies a high-reliability or high-temperature rating, making it suitable for automotive or demanding industrial environments. --- ### 3. Typical Applications Because of its high current handling and small footprint, the R20M is used in: 1. **DC-DC Converters:** Voltage Regulator Modules (VRMs) for CPUs and GPUs. 2. **Point of Load (PoL):** High-efficiency power delivery in telecommunications. 3. **Portable Electronics:** High-end laptops and tablets where space is tight but power demand is high. 4. **Automotive Infotainment:** Powering onboard computers and displays. --- ### 4. PCB Footprint Example In a CAD environment, the footprint would look similar to this simplified pad layout: ```text 5.2mm <-----------> +-----------+ ^ | [ PAD ] | | | | | 5.0mm | [ PAD ] | | +-----------+ v ```