## Technical Overview: DFE201610P-R68M The **DFE201610P-R68M** is a high-performance, miniature power inductor manufactured by **Murata Manufacturing Co., Ltd.** It belongs to the DFE series, which utilizes a metal alloy core to provide high current capability in a small footprint. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±20% (M) | | **DC Resistance (Max)** | 35 mΩ | | **Rated Current (Isat)** | 4.4 A (based on inductance change) | | **Rated Current (Itemp)** | 3.5 A (based on temperature rise) | | **Operating Temperature** | -40°C to +125°C | | **Package Size (Metric)** | 2016 (2.0mm x 1.6mm) | | **Height (Max)** | 1.0 mm | --- ### 2. Physical Construction and Technology * **Metal Alloy Core:** Unlike traditional ferrite inductors, this part uses a metal powder core. This allows for soft saturation characteristics, meaning the inductance decreases gradually as current increases rather than dropping sharply. * **Magnetic Shielding:** The construction is naturally shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. * **Monolithic Structure:** The design integrates the coil and the core material into a single solid block, providing excellent mechanical robustness and vibration resistance. --- ### 3. Application Areas This component is specifically designed for high-density power supply circuits. Common use cases include: 1. **Mobile Electronics:** Smartphones, tablets, and wearables where board space is extremely limited. 2. **DC-DC Converters:** Used as a storage inductor in buck (step-down) or boost (step-up) converters. 3. **CPU/GPU Power Rails:** Ideal for low-voltage, high-current power stages in portable computing devices. --- ### 4. Part Number Breakdown The part number can be decoded as follows: ```text DFE 2016 10 P - R68 M | | | | | |_ Tolerance (±20%) | | | | |____ Inductance Value (R68 = 0.68µH) | | | |_________ Power Type | | |___________ Height (1.0 mm) | |________________ Dimensions (2.0 x 1.6 mm) |_____________________ Series Name ``` ---