The **47LPA-1D0R-R** is a specific electronic component, typically categorized as a **surface-mount power inductor**. Parts with this naming convention are often associated with manufacturers like *Mag.Layers* or similar magnetic component specialists. ### 1. Technical Specifications The part number encodes specific physical and electrical characteristics. Below is a breakdown of the typical specifications for this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 1.0 µH (indicated by "1D0R") | | **Tolerance** | ±20% (standard for power inductors) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Construction** | Shielded (low EMI interference) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Part Number Breakdown The alphanumeric code follows a standard industry format for inductors: * **47LPA**: Series identifier. "47" often refers to the footprint size (approx. 4.0mm x 4.0mm or 4.7mm), and "LPA" denotes the specific low-profile alloy or power series. * **1D0R**: The inductance value. The "R" acts as a decimal point. 1R0 or 1D0R = **1.0 Microhenries (µH)**. * **-R**: Usually signifies that the part is **RoHS Compliant** (Lead-free) and may also indicate packaging on a Reel. --- ### 3. Key Applications Because of its small size and high current-handling capabilities, this part is commonly found in: 1. **DC-DC Converters:** Used for energy storage and filtering in voltage regulator modules. 2. **Mobile Electronics:** Ideal for smartphones, tablets, and wearables due to the low-profile design. 3. **Computing:** Found on motherboards and graphics cards for power stage management. 4. **LED Drivers:** Used to stabilize current in lighting applications. --- ### 4. Important Considerations for Design When integrating the 47LPA-1D0R-R into a circuit, pay attention to these two critical ratings: * **Saturation Current ($I_{sat}$):** The current level at which the inductance drops by a specific percentage (usually 30%). Exceeding this causes the inductor to lose efficiency. * **Heating Current ($I_{rms}$):** The continuous DC current that causes the component temperature to rise by a specific amount (usually 40°C). ---