The **DFE201610R-H-R47M** is a high-performance, metal alloy chip inductor manufactured by **Murata Electronics**. It is specifically designed for power circuits in compact devices like smartphones, tablets, and wearable technology. --- ### 1. Technical Specifications The following table outlines the primary electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.47 µH | | **Tolerance** | ±20% | | **Inductance Test Frequency** | 1 MHz | | **DC Resistance (DCR)** | 26 mΩ (Max) / 21 mΩ (Typ) | | **Rated Current (Isat)** | 4.4 A (Max) | | **Rated Current (Itemp)** | 3.6 A (Max) | | **Operating Temperature** | -40°C to +125°C | | **Size Code (Metric)** | 2016 (2.0mm x 1.6mm) | | **Height** | 1.0 mm (Max) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps identify the component's features: * **DFE**: Series name (Metal Alloy Inductor). * **2016**: Dimensions ($2.0 \times 1.6$ mm). * **10**: Maximum height (1.0 mm). * **R**: Internal internal code/structure. * **H**: High current/low loss characteristic. * **R47**: Inductance value ($0.47$ µH). * **M**: Tolerance ($\pm 20\%$). --- ### 3. Key Features and Technologies #### A. Metal Alloy Core Unlike traditional ferrite inductors, the DFE series uses a **metallic powder core**. This provides superior magnetic saturation characteristics, allowing the inductor to handle higher currents without a sharp drop in inductance. #### B. Magnetic Shielding The component is magnetically shielded. This construction minimizes Electromagnetic Interference (EMI) with surrounding sensitive components, which is critical in dense PCB layouts. #### C. Low Profile With a maximum height of only **1.0 mm**, it is ideal for thin consumer electronics where vertical space is limited. --- ### 4. Typical Applications * **DC-DC Converters:** Used in point-of-load (POL) power supplies. * **Mobile Devices:** Power management IC (PMIC) circuits in smartphones. * **Wearables:** Efficient power delivery for smartwatches and fitness trackers. * **Communication Modules:** Low-noise power filtering for Wi-Fi and Bluetooth chips.