The part number **SCDR575047-R12** refers to a high-performance **Surface Mount Device (SMD) Power Inductor**. These components are critical in power management circuits for filtering noise and storing energy. --- ## 1. Technical Specifications Below are the typical technical parameters associated with this specific part series: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.12 µH (indicated by R12) | | **Tolerance** | ±20% or ±30% (Standard for Power Inductors) | | **Case Size** | 5750 (Metric: 5.7 x 5.0 mm) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Core Material** | Ferrite / Metal Alloy | | **Shielding** | Magnetically Shielded (reduces EMI) | --- ## 2. Part Number Breakdown Understanding the nomenclature helps in identifying the physical and electrical characteristics: * **SCDR**: Series designation (typically refers to a Shielded Coupled or Drum Inductor design). * **5750**: Dimensions of the footprint. In this case, approximately **5.7mm x 5.0mm**. * **47**: Often refers to the height profile (e.g., 4.7mm) or a specific sub-series revision. * **R12**: The Inductance value. The "R" acts as a decimal point. **R12 = 0.12 Microhenries (µH)**. --- ## 3. Key Applications Inductors with low values like **0.12 µH** are designed for high-frequency switching environments. Common uses include: 1. **DC-DC Converters:** Used in "Buck" (step-down) or "Boost" (step-up) regulators to smooth output current. 2. **Voltage Regulator Modules (VRM):** Found on motherboards and GPU cards to handle high-current, low-voltage power delivery. 3. **EMI Filtering:** Suppressing high-frequency noise in sensitive communication equipment. 4. **Consumer Electronics:** Essential in smartphones, laptops, and tablets where space is limited but power efficiency is vital. --- ## 4. Typical Features * **Low DC Resistance (DCR):** Minimizes power loss and heat generation. * **High Saturation Current:** Capability to handle large spikes in current without losing inductance. * **Magnetically Shielded:** The construction prevents magnetic flux from interfering with neighboring components on the PCB.