### LDS0705-4R7M-R: Electronic Component Specification The **LDS0705-4R7M-R** is a Surface Mount Device (SMD) Power Inductor. It is commonly used in DC-DC converters, power supplies, and voltage regulation modules where compact size and high efficiency are required. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics of the component: | Segment | Meaning | Description | | :--- | :--- | :--- | | **LDS** | Series Code | Shielded SMD Power Inductor series. | | **0705** | Dimensions | Approx. 7.0mm x 7.0mm x 5.0mm. | | **4R7** | Inductance Value | 4.7 Microhenries ($\mu H$). | | **M** | Tolerance | $\pm 20\%$. | | **R** | Packaging | Tape & Reel (RoHS Compliant). | --- ### 2. Technical Specifications Below are the typical electrical parameters for this specific part: | Parameter | Value | | :--- | :--- | | **Inductance** | 4.7 $\mu H$ | | **Tolerance** | $\pm 20\%$ | | **DC Resistance (DCR)** | ~25 - 35 $m\Omega$ (Typical) | | **Saturation Current ($I_{sat}$)** | ~3.5A - 4.5A (Depending on temperature rise) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetically Shielded (reduces EMI) | --- ### 3. Key Features * **Magnetically Shielded:** The construction minimizes electromagnetic interference (EMI), making it suitable for high-density boards near sensitive components. * **Low Profile:** The "0705" height (5.0mm) is optimized for compact electronic assemblies. * **High Current Handling:** Designed to maintain inductance stability even under high DC bias currents. * **Surface Mount (SMD):** Designed for automated pick-and-place assembly. --- ### 4. Common Applications This inductor is typically found in: 1. **DC-DC Converters:** Buck, Boost, and SEPIC converters. 2. **Consumer Electronics:** Laptops, tablets, and LED drivers. 3. **Communication Equipment:** Base stations and network routers. 4. **Power Supplies:** Distributed power systems and battery-powered devices. ---