## Analysis of the SD14-1R5-R Electronic Component The **SD14-1R5-R** is a high-power density, low-profile SMT (Surface Mount Technology) power inductor manufactured by **Eaton (formerly Coiltronics)**. It is part of the SD series, designed for applications requiring compact footprints and high efficiency. --- ### 1. Technical Specifications The following table outlines the primary electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 1.5 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 2.67 A | | **Saturation Current (Isat)** | 3.56 A | | **DC Resistance (DCR)** | 33.7 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 5.2mm x 5.2mm x 1.45mm | | **Shielding** | Magnetically Shielded | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **SD**: Product Series (Shielded Drum Inductor). * **14**: Dimensional code (approx. 1.45mm height). * **1R5**: Inductance Value (1.5 microhenries). The "R" acts as a decimal point. * **-R**: RoHS compliant. --- ### 3. Key Features & Applications #### Features * **Magnetic Shielding:** Minimizes Electromagnetic Interference (EMI), making it suitable for high-density boards. * **Low Profile:** The 1.45mm height is ideal for ultra-thin electronics like smartphones and wearable tech. * **Ferrite Core:** Ensures high efficiency and low core losses at high frequencies. #### Typical Applications 1. **DC-DC Converters:** Used as a storage element in buck, boost, or buck-boost regulators. 2. **Portable Electronics:** Digital cameras, mobile phones, and tablets. 3. **Computer Peripherals:** SSDs, laptops, and distributed power systems. 4. **Battery Powered Equipment:** Due to its low DCR, it helps extend battery life by reducing heat dissipation. --- ### 4. PCB Footprint (Example Layout) When designing a PCB for this part, use the following copper pad guidelines: ```text Recommended Land Pattern: ------------------------- Outer Width: 5.50 mm Pad Width: 1.50 mm Gap Between: 2.00 mm ------------------------- [Pad] -- 2.0mm -- [Pad] ```