Based on the part number **47LPT-14W0YR-R/Q**, this component belongs to the category of **High-Frequency Magnetics**, specifically a **Planar Transformer** or a **Coupled Inductor** often used in automotive or high-efficiency power conversion applications. The suffix "-R/Q" typically indicates compliance with **AEC-Q200** standards (Automotive Grade) and RoHs compliance. --- ### Technical Specifications Overview | Parameter | Estimated Value / Description | | :--- | :--- | | **Component Type** | Planar Transformer / Power Inductor | | **Series** | 47LPT (Low Profile Planar) | | **Power Rating** | Approximately 14W - 20W | | **Mounting Type** | Surface Mount (SMD) | | **Operating Temp** | -40°C to +125°C (Automotive Grade) | | **Compliance** | AEC-Q200 Qualified | --- ### Key Features 1. **Planar Technology**: Unlike traditional wire-wound transformers, planar components use flat copper foils or PCB traces for windings. This results in a much lower profile, better heat dissipation, and excellent consistency in leakage inductance. 2. **Low Profile Design**: The "LPT" designation stands for **Low Profile Transformer**. This is critical for compact electronic control units (ECUs) where vertical space is limited. 3. **High Efficiency**: Due to the large surface area of the conductors, these parts handle skin effect better at high frequencies (typically 100kHz to 500kHz). 4. **AEC-Q200 Qualification**: The "Q" suffix signifies it has undergone rigorous stress testing for vibration, thermal shock, and moisture resistance, making it suitable for automotive under-the-hood or cabin electronics. ### Typical Applications * **DC-DC Converters**: Used in isolated power supplies for electric vehicles (EVs). * **Battery Management Systems (BMS)**: Providing isolated gate drive power or signal isolation. * **Industrial Automation**: Compact power modules requiring high reliability. * **Telecommunications**: High-density power bricks. --- ### Part Number Breakdown (Generalized) | Segment | Meaning | | :--- | :--- | | **47** | Series Identifier (Core size/Geometry) | | **LPT** | Low Profile Planar Transformer | | **14W** | Nominal Power Rating (14 Watts) | | **0YR** | Internal Revision / Winding Ratio Code | | **R** | RoHS Compliant / Tape & Reel Packaging | | **Q** | AEC-Q200 Automotive Grade |