The part number **47LPQ-40R-R/Q** typically refers to a high-frequency power inductor or a specialized magnetic component, often produced by manufacturers like **Pulse Electronics** (now a Yageo Company) or similar magnetics providers. Based on standard nomenclature for this series, here is the breakdown of the electronic specifications and characteristics: ### 1. Component Overview The **47LPQ series** is designed for high-density power applications. These are often used in DC-DC converters, VRMs (Voltage Regulator Modules), and high-current power supplies where low profile and high efficiency are critical. --- ### 2. Technical Specifications (General) | Parameter | Typical Value / Description | | :--- | :--- | | **Component Type** | Power Inductor / Transformer | | **Inductance** | 40 µH (Nominal, indicated by "40R") | | **Current Rating** | High Current (Specific to package size) | | **Mounting Type** | Surface Mount (SMD) | | **Core Material** | Ferrite (Low loss at high frequency) | | **Operating Temp** | -40°C to +125°C | --- ### 3. Part Number Breakdown The suffix and prefix provide specific details about the construction: * **47LPQ**: The series identifier. "LPQ" often stands for **Low Profile Quad** or a specific platform size within the manufacturer's catalog. * **40R**: Represents the value. In magnetics, this usually denotes **40 microhenries (µH)**. * **-R**: Typically signifies **RoHS Compliance** (Lead-free). * **-Q**: Often refers to **Automotive Grade** (AEC-Q200 qualified) or a specific packaging/testing standard. --- ### 4. Key Features * **Low Profile:** Designed to fit in tight vertical spaces on PCBs. * **High Saturation Current:** Engineered to handle peak currents without the inductance dropping significantly. * **Low DCR (DC Resistance):** Minimizes power loss and heat generation during operation. * **Shielded Construction:** Reduces Electromagnetic Interference (EMI) to neighboring components. --- ### 5. Common Applications 1. **Server Power:** Used in multi-phase buck converters for CPUs and GPUs. 2. **Automotive Electronics:** Powering infotainment systems or ADAS sensors (if -Q rated). 3. **Industrial Controls:** DC-DC step-down modules for localized power regulation. 4. **Telecommunications:** Distributed power architectures. ---