The part number **47LT-100R-R/Q** typically refers to a high-precision, low-profile **Power Inductor** (often associated with manufacturers like Sumida or similar magnetic component specialists). These components are essential for power management in compact electronics. ### 1. Component Overview The 47LT series is designed for surface mount (SMD) applications where vertical space is limited. It is a shielded inductor, meaning it is engineered to minimize electromagnetic interference (EMI). --- ### 2. Technical Specifications Below are the typical specifications for this specific component: | Parameter | Value/Description | | :--- | :--- | | **Component Type** | Power Inductor (SMD) | | **Inductance** | 10.0 $\mu$H (Indicated by "100") | | **Tolerance** | $\pm$20% (Standard for this series) | | **Resistance (DCR)** | Approximately 0.15 - 0.25 $\Omega$ (Typical) | | **Current Rating** | Designed for low to medium current DC-DC converters | | **Shielding** | Magnetically Shielded | | **Mounting** | Surface Mount Device (SMD/SMT) | --- ### 3. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics: * **47LT**: The series designation (refers to the physical size and core structure). * **100**: The Inductance code. "10" followed by "0" zeros = **10 $\mu$H**. * **R**: Generally signifies the tolerance or the core material type. * **-R/Q**: Usually indicates compliance standards (e.g., **RoHS Compliant**) and packaging type (e.g., Tape & Reel). --- ### 4. Key Features & Applications #### Features * **Low Profile:** Ideal for thin devices like smartphones, tablets, and wearable tech. * **Magnetic Shielding:** Prevents the inductor's magnetic field from interfering with neighboring components. * **High Reliability:** Stable performance across a wide temperature range. #### Common Applications 1. **DC-DC Converters:** Step-up or step-down voltage regulation. 2. **Portable Electronics:** Power modules for laptops and hand-held devices. 3. **Communication Equipment:** Filtering and noise suppression in RF circuits. --- ### 5. Identification Example If you are inspecting this on a PCB, it will appear as a small square or rectangular black/grey block. The marking on the top usually reflects the value: ```text +-------+ | 100 | <-- Represents 10uH | | +-------+ ```