The part number **47LM-152YR-R** refers to a high-precision, low-profile **Chip Inductor** (specifically a Multilayer Ferrite Inductor). These components are critical for filtering, decoupling, and high-frequency signal conditioning in compact electronic devices. --- ### 1. Technical Specifications Below are the typical specifications for a component of this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 1.5 µH (Microhenries) | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~0.15 - 0.25 Ohms | | **Rated Current** | ~500mA to 800mA (Dependent on package) | | **Package Size** | 0603 or 0805 (Metric 1608/2012) | | **Operating Temp** | -40°C to +85°C | | **Material** | Ferrite Core (Multilayer) | --- ### 2. Breakdown of the Part Number While nomenclature varies slightly by manufacturer (such as Taiyo Yuden or Bourns), the code generally follows this logic: * **47L**: Series identifier for Multilayer Inductors. * **M**: Tolerance code (M usually denotes ±20%). * **152**: Value code. The first two digits (15) are significant, and the third (2) is the multiplier ($10^2$). $1500$ nH = **1.5 µH**. * **YR**: Packaging or material finish code (often denotes RoHS compliance). * **-R**: Tape and Reel packaging. --- ### 3. Key Features & Applications #### Features * **Multilayer Construction:** Provides a compact footprint without the need for wire winding, increasing reliability and reducing EMI. * **Magnetic Shielding:** The ferrite structure naturally contains the magnetic field, preventing interference with neighboring components. * **Low Profile:** Designed for thin devices like smartphones and wearables. #### Common Applications 1. **Mobile Electronics:** Power management modules (PMIC) in smartphones. 2. **Noise Suppression:** Used in high-speed data lines to filter out electromagnetic interference. 3. **Decoupling:** Filtering high-frequency noise from power supply lines to sensitive ICs. --- ### 4. Schematic Representation In a circuit diagram, this part is represented by an inductor symbol: ```text L1 (1.5µH) ----(UUUUU)---- ``` ---