The **47LPT-151YR-R** is a specific electronic component, typically categorized as a **Surface Mount Inductor (SMD)**, often used in power management circuits. This part belongs to a family of high-current power inductors designed for compact electronic devices. --- ### 1. Technical Specifications Below are the typical technical parameters associated with this part number: | Feature | Specification | | :--- | :--- | | **Inductance** | 150 µH (Indicated by "151") | | **Tolerance** | ±20% (Typical for "Y" or "M" codes) | | **Package Type** | SMD (Surface Mount Device) | | **Shielding** | Shielded (Reduces EMI/Electromagnetic Interference) | | **RoHS Status** | Compliant (Indicated by "-R") | | **Application** | DC-DC Converters, Power Supplies | --- ### 2. Part Number Breakdown The alphanumeric code follows a standard industry naming convention for inductors: * **47LPT**: This represents the series name and physical dimensions (Form Factor). It usually indicates a low-profile, high-current design. * **151**: This is the Inductance Code in Microhenries (µH). * The first two digits (**15**) are significant figures. * The third digit (**1**) is the multiplier ($10^1$). * Calculation: $15 \times 10^1 = 150 \mu H$. * **Y**: This represents the tolerance (typically ±20% or ±30% depending on the specific manufacturer's datasheet). * **R**: Generally signifies the packaging type (Tape & Reel) and RoHS compliance. --- ### 3. Key Applications This component is designed for efficiency in power conversion. Common use cases include: 1. **Switch-Mode Power Supplies (SMPS):** Used to store energy and filter output current. 2. **Laptops and Tablets:** Due to its low profile, it fits in thin consumer electronics. 3. **LED Drivers:** Helps maintain a constant current flow to LEDs. 4. **DC-DC Step-up/Step-down Converters:** Essential for voltage regulation on PCBs. --- ### 4. Circuit Symbol and Footprint In a schematic, this part is represented by the standard inductor symbol: ```text L1 -^^^^^- 150 µH ```