The **DFE201610P-R68M#** is a high-performance, miniature fixed inductor manufactured by **Murata Electronics**. It is part of the DFE201610P series, specifically designed for power circuits where space is limited and high efficiency is required. --- ### 1. General Specifications The part number encodes specific technical details about the component's physical and electrical properties. | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.68 µH | Rated at 1MHz | | **Tolerance** | ±20% | Indicated by the "M" suffix | | **Rated Current (Isat)** | 3.6 A | Max current based on inductance change | | **Rated Current (Itemp)** | 3.0 A | Max current based on temperature rise | | **DC Resistance (RDC)** | 38 mΩ (Max) | Internal resistance of the coil | | **Operating Temp** | -40°C to 125°C | Includes self-heating | --- ### 2. Key Features & Construction The DFE201610P series utilizes specific engineering techniques to optimize performance for modern mobile electronics: * **Metal Alloy Core:** Unlike traditional ferrite inductors, this part uses a metal alloy powder. This provides **soft saturation characteristics**, meaning the inductance drops gradually rather than abruptly when current increases. * **Magnetic Shielding:** The molded construction provides magnetic shielding, which minimizes Electromagnetic Interference (EMI) with surrounding components. * **Low Profile:** The dimensions are extremely small (**2.0 x 1.6 x 1.0 mm**), making it ideal for thin devices like smartphones and wearables. * **High Current Capability:** Despite its size, the metal alloy core allows it to handle significantly higher currents than standard ferrite inductors of the same size. --- ### 3. Application Use Cases This component is primarily used in **DC-DC converters** for power management modules. * **Consumer Electronics:** Smartphones, tablets, and digital cameras. * **Communication Modules:** Wi-Fi/Bluetooth power supply stages. * **Wearables:** Smartwatches and IoT sensors where PCB real estate is at a premium. --- ### 4. Part Number Breakdown The alphanumeric code follows Murata’s standard naming convention: | Code | Meaning | | :--- | :--- | | **DFE** | Series Name (Metal Alloy Type) | | **2016** | Dimensions (2.0mm x 1.6mm) | | **10** | Height (1.0mm) | | **P** | Product process/Internal code | | **R68** | Inductance Value (R68 = 0.68 µH) | | **M** | Tolerance (M = ±20%) |