The **PQH201610T-R47-R** is a specific surface-mount (SMD) power inductor. This component is designed for high-efficiency power conversion, typically used in DC-DC converters, mobile devices, and compact electronics. Below is a detailed breakdown of its specifications and characteristics. --- ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.47 µH | | **Tolerance** | ±20% (indicated by 'M' or 'R') | | **Case Size (Metric)** | 2016 (2.0mm x 1.6mm) | | **Height** | 1.0 mm (Max) | | **DC Resistance (DCR)** | Typ: ~21 mΩ / Max: ~26 mΩ | | **Saturation Current (Isat)** | ~4.5 A to 5.2 A (varies by brand) | | **Temperature Rise Current (Irms)** | ~3.8 A to 4.2 A | | **Shielding** | Magnetic Resin Shielded (Semi-shielded) | --- ### 2. Part Number Breakdown While naming conventions vary slightly by manufacturer (such as Chilisin, Sunlord, or Cyntec), the code generally follows this logic: * **PQH**: Product Series (High current, metal composite or semi-shielded power inductor). * **2016**: Dimensions (Length 2.0mm, Width 1.6mm). * **10**: Height code (1.0mm thickness). * **T**: Packaging style (typically Tape & Reel). * **R47**: Inductance value (R represents the decimal point: 0.47 microhenries). * **R**: Tolerance or Revision code (often denoting RoHS compliance or ±20% tolerance). --- ### 3. Key Features * **Magnetic Shielding:** Uses a magnetic resin coating to reduce EMI (Electromagnetic Interference) compared to unshielded inductors, while remaining smaller than fully shielded ferrite drum cores. * **High Current Density:** The "PQH" series is optimized for high saturation currents in a very small footprint. * **Low DCR:** Minimizes power loss (heat) during operation, extending battery life in portable devices. * **Metal Alloy Construction:** Often utilizes a metal powder core which provides soft saturation characteristics (the inductance drops gradually rather than abruptly when current increases). --- ### 4. Common Applications * **Smartphones & Tablets:** Power management modules (PMIC). * **Laptops/Ultrabooks:** Voltage regulator modules for CPUs and GPUs. * **IoT Devices:** Compact sensors and communication modules requiring efficient power conversion. * **SSD Drives:** High-speed data storage power rails.