The **SD10-470-R** is a high-performance, low-profile power inductor manufactured by **Eaton (formerly Coiltronics)**. It is part of the SD series, which is designed for applications requiring high power density and magnetic shielding. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the SD10-470-R: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 47.0 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 0.730 Ω (Typical) | | **Rated Current (Irms)** | 0.536 Amps | | **Saturation Current (Isat)** | 0.605 Amps | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | SMD (Surface Mount Device) | | **Dimensions** | 5.2mm x 5.2mm x 1.0mm | --- ### 2. Key Features * **Magnetically Shielded:** The part is designed to minimize Electromagnetic Interference (EMI), making it ideal for noise-sensitive circuits. * **Low Profile:** With a maximum height of only **1.0 mm**, it is perfect for ultra-thin electronics like smartphones and tablets. * **Ferrite Core:** Utilizes a ferrite drum core for high efficiency and stable performance across a wide frequency range. * **RoHS Compliant:** The "-R" suffix indicates that the part is lead-free and compliant with environmental regulations. --- ### 3. Common Applications Due to its small footprint and shielding, the SD10-470-R is frequently used in the following areas: 1. **DC-DC Converters:** Buck, boost, and SEPIC topologies. 2. **Portable Electronics:** Used in battery-powered devices where space is at a premium. 3. **LED Drivers:** Providing stable current for lighting applications. 4. **Computer Peripherals:** Found in hard drives, solid-state drives (SSDs), and motherboards. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: `SD` | `10` | `-` | `470` | `-` | `R` ---|---|---|---|---|--- **Series Name** | **Size/Power Rating** | | **Inductance Value** | | **RoHS Compliant** (Shielded Drum) | (1.0mm height) | | (47 + 0 zeros = 47µH) | | (Lead-Free) ---