## Technical Overview: DFE201610P-R47M The **DFE201610P-R47M** is a high-performance, miniature fixed inductor manufactured by **Murata Electronics**. It belongs to the DFE series, which utilizes metal alloy powder core technology to provide high current capabilities in a compact footprint. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 0.47 µH | ±20% tolerance | | **Case Code (Metric)** | 2016 (2.0mm x 1.6mm) | Ultra-compact size | | **Height (Max)** | 1.0 mm | Low-profile design | | **DC Resistance (DCR)** | 26 mΩ (Max) | Low resistance for efficiency | | **Rated Current (Isat)** | 4.8 A | Based on Inductance change | | **Rated Current (Itemp)** | 3.7 A | Based on Temperature rise | | **Core Material** | Metal Alloy | High saturation characteristics | | **Shielding** | Magnetic Shielded | Reduces EMI interference | --- ### 2. Core Features and Benefits * **Metal Alloy Technology:** Unlike traditional ferrite cores, the metal alloy powder allows for a "soft saturation" characteristic. This means the inductance drops gradually as the current increases, preventing sudden circuit failure. * **High Current Density:** Despite its small 2016 footprint, it can handle significant current (up to 4.8A), making it ideal for modern power management integrated circuits (PMICs). * **Low DC Resistance:** The internal structure is optimized to minimize power loss, which is critical for extending battery life in portable devices. * **Magnetic Shielding:** The construction minimizes electromagnetic interference (EMI), allowing it to be placed close to sensitive components on a crowded PCB. --- ### 3. Common Applications This inductor is specifically designed for high-frequency DC-DC converters in space-constrained environments: 1. **Smartphones & Tablets:** Used in CPU/GPU power supply rails. 2. **Wearable Tech:** Ideal for smartwatches due to the 1.0mm low profile. 3. **SSD/Storage:** Power regulation for high-speed data drives. 4. **IoT Modules:** Compact power stages for wireless sensors. --- ### 4. Part Number Breakdown Understanding the Murata nomenclature: * **DFE:** Series Name (Metal Alloy Inductor) * **2016:** Dimensions (2.0mm x 1.6mm) * **10:** Height (1.0mm) * **P:** Internal code for material/structure * **R47:** Inductance Value (R47 = 0.47 µH) * **M:** Tolerance (M = ±20%)