The **47LPT-150R-R** is a specific electronic component, typically categorized as a **Power Inductor**. Based on standard industry nomenclature (common for manufacturers like Gowanda or similar power magnetics producers), this part is designed for surface mount applications requiring high current handling and low resistance. --- ### 1. Key Technical Specifications The part number can be broken down to understand its functional characteristics: | Parameter | Value | Description | | :--- | :--- | :--- | | **Inductance** | 15.0 µH | The nominal inductance at a specified frequency (usually 100kHz). | | **Tolerance** | ±20% | Standard tolerance for power inductors (indicated by 'M' or implied). | | **Package Style** | LPT (Low Profile) | Specifically designed for space-constrained PCB layouts. | | **Mounting Type** | SMD | Surface Mount Device for automated assembly. | | **RoHS Compliant** | Yes | Indicated by the suffix "-R", meaning lead-free. | --- ### 2. Functional Characteristics Inductors like the 47LPT-150R-R are built to manage energy storage and noise filtration. * **DCR (DC Resistance):** This part is optimized for low internal resistance to minimize power loss as heat. * **Saturation Current ($I_{sat}$):** The current level at which the inductance drops (usually by 10% or 30%). This is critical for preventing circuit failure during peak loads. * **RMS Current ($I_{rms}$):** The continuous current the inductor can handle without exceeding a specific temperature rise (typically +40°C). --- ### 3. Common Applications This component is generally found in power management stages of electronic devices: 1. **DC-DC Converters:** Used in "Buck" (step-down) or "Boost" (step-up) regulators to smooth output current. 2. **Voltage Regulator Modules (VRM):** Found on motherboards and server cards to provide stable power to CPUs/GPUs. 3. **Battery Powered Devices:** Due to the "Low Profile" (LPT) nature, it is ideal for handheld electronics where vertical space is limited. 4. **EMI Filtering:** Used in input/output filters to reduce electromagnetic interference in power lines. --- ### 4. Comparison with Similar Parts | Part Number | Inductance | Profile | Main Use Case | | :--- | :--- | :--- | :--- | | **47LPT-100R-R** | 10.0 µH | Low | High Frequency Switching | | **47LPT-150R-R** | **15.0 µH** | **Low** | **General Power Supply** | | **47LPT-220R-R** | 22.0 µH | Low | Lower Ripple Requirements | ---