The **FSLM2520-R10K** is a surface-mount (SMD) wire-wound chip inductor designed primarily for high-frequency signal applications. It is part of the FSLM series, which is known for its compact size and high reliability in telecommunication and consumer electronics. --- ## 1. Technical Specifications The part number itself follows a standardized naming convention that describes its physical and electrical characteristics. | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.10 µH (indicated by "R10") | | **Tolerance** | ±10% (indicated by "K") | | **Case Size (Imperial)** | 1008 | | **Case Size (Metric)** | 2520 (2.5mm x 2.0mm) | | **Mounting Type** | Surface Mount (SMD) | | **Construction** | Wire-wound with a resin mold | --- ## 2. Electrical Performance Data While specific manufacturer data (like TDK) may vary slightly, typical performance metrics for this component include: * **Test Frequency:** Usually measured at 25.2 MHz. * **Quality Factor (Q):** Typically ranges from 25 to 30 (minimum) at the test frequency, indicating low energy loss. * **Self-Resonant Frequency (SRF):** High SRF (often >400 MHz), making it suitable for RF applications. * **DC Resistance (DCR):** Low resistance (usually <0.50 Ω) to minimize heat and power loss. * **Rated Current:** Capable of handling approximately 400mA to 500mA (Idc). --- ## 3. Physical Construction The "FSLM" series utilizes a specific build style: 1. **Core Material:** Usually a ferrite core to concentrate the magnetic field. 2. **Wire-wound:** A copper coil is wound around the core to achieve precise inductance values. 3. **Resin Molding:** The entire assembly is encapsulated in a hard resin. This provides: * **Mechanical Strength:** Protects the delicate wire during automated pick-and-place assembly. * **Environmental Protection:** Guards against moisture and oxidation. * **Flat Top:** Ensures a reliable surface for vacuum nozzles during SMT mounting. --- ## 4. Typical Applications This inductor is generally found in circuits where signal integrity and frequency filtering are required: * **RF Modules:** Used in wireless communication devices for impedance matching. * **Filtering:** Employed in LC filters to remove high-frequency noise from signal lines. * **Telecommunications:** Base stations, routers, and mobile hardware. * **Consumer Electronics:** Video equipment and high-speed data interfaces. ---