The **DFE201210U-R68M** is a high-performance, miniature power inductor manufactured by **Murata Manufacturing Co., Ltd.** It is part of the DFE series, which utilizes metal alloy materials to achieve high current capabilities in a small footprint. --- ### ## Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 0.68 µH | Rated at 1MHz | | **Tolerance** | ±20% (M) | Standard industry tolerance | | **Case Size (Metric)** | 2012 (2.0 x 1.2 mm) | EIA 0805 equivalent | | **Height (Max)** | 1.0 mm | Ultra-low profile | | **DC Resistance (DCR)** | 48 mΩ (Max) | Low resistance for high efficiency | | **Rated Current (Isat)** | 3.5 A | Based on Inductance change (-30%) | | **Rated Current (Itemp)** | 3.1 A | Based on Temperature rise (+40°C) | | **Core Material** | Metal Alloy | Improved magnetic saturation | --- ### ### Key Features 1. **Metal Alloy Technology:** Unlike traditional ferrite inductors, the metal alloy core allows for a "soft" saturation characteristic. This means the inductance drops gradually as current increases, preventing sudden circuit failures. 2. **Magnetic Shielding:** The structure is magnetically shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components. 3. **High Current Density:** Despite its small 0805 footprint, it can handle currents exceeding 3 Amps, making it ideal for modern power-hungry processors. 4. **Reflow Soldering:** Designed specifically for surface mount technology (SMT) and is lead-free (RoHS compliant). --- ### ### Common Applications The DFE201210U-R68M is primarily used in **DC-DC converters** for power management in compact electronic devices: * **Smartphones & Tablets:** Used in CPU/GPU power rails. * **Wearables:** Ideal for smartwatches and fitness trackers due to the 1.0mm height. * **SSD/Storage:** Power regulation for high-speed data modules. * **IoT Modules:** Providing stable power in space-constrained sensor nodes. --- ### ### Part Number Breakdown * **DFE:** Series Name (Metal Alloy Inductor) * **2012:** Dimensions (2.0mm x 1.2mm) * **10:** Height (1.0mm) * **U:** Internal Code (Design specific) * **R68:** Inductance Value (0.68 µH) * **M:** Tolerance (±20%)