The **10PP-352-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Power Inductor**. These parts are crucial in power management circuits for filtering and energy storage. --- ### 1. Technical Specifications The part number follows a specific nomenclature used by manufacturers (often associated with brands like **Coilcraft** or similar high-reliability magnetics providers). Below are the typical characteristics for this series: | Property | Typical Value / Range | | :--- | :--- | | **Inductance** | 3.5 µH (Standard for '352' code) | | **Tolerance** | ±10% to ±20% | | **Current Rating (Isat)** | Typically 1.5A - 3.0A (depending on frame) | | **DC Resistance (DCR)** | Low (Milliohms range) | | **Mounting Type** | SMD (Surface Mount) | | **Compliance** | RoHS Compliant (indicated by '-R') | --- ### 2. Physical Construction The "PP" designation often refers to the core material or the shielding type. * **Core Material:** Usually a Ferrite or Composite Iron powder core. * **Shielding:** These are often **shielded inductors**, meaning they are encased in a magnetic material to reduce Electromagnetic Interference (EMI) with neighboring components. * **Terminations:** Matte Tin over Nickel/Copper plating for high-quality soldering. --- ### 3. Common Applications This specific inductor is designed for DC-to-DC conversion and signal conditioning. Typical use cases include: 1. **Buck/Boost Converters:** Storing energy during the "on" cycle of a switching regulator and releasing it during the "off" cycle. 2. **Noise Filtering:** Used in "LC" filters to smooth out voltage ripples from power supplies. 3. **Consumer Electronics:** Found in laptops, tablets, and LED drivers where space is limited but high efficiency is required. 4. **Decoupling:** Preventing high-frequency noise from traveling between different sections of a PCB. --- ### 4. Decoding the Part Number While naming conventions vary slightly by manufacturer, the code generally breaks down as follows: | Code | Meaning | | :--- | :--- | | **10** | Series/Size indicator (e.g., 10mm footprint or specific series family) | | **PP** | Power Plug/Shielded High-Power series | | **352** | Value code: **35** (significant digits) x **10²** (multiplier) in picohenries, resulting in **3.5 µH** | | **R** | RoHS Compliant / Tape and Reel packaging |