The **DFE201610E-R33M#** is a high-performance, metal alloy inductor manufactured by **Murata Manufacturing Co., Ltd.** It is part of the DFE201610E series, designed specifically for power circuits in compact electronic devices like smartphones and tablets. --- ### 1. General Specifications The part number encodes specific technical characteristics. Here is the breakdown of its primary electrical and physical attributes: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.33 µH (Microhenries) | | **Tolerance** | ±20% | | **Case Size (EIA)** | 0806 | | **Dimensions (L x W x T)** | 2.0 x 1.6 x 1.0 mm | | **DC Resistance (Rdc)** | 26 mΩ (Max) | | **Rated Current (Isat)** | 5.2 A (Based on Inductance change) | | **Rated Current (Itemp)** | 3.8 A (Based on Temperature rise) | | **Operating Temp Range** | -40°C to +125°C | --- ### 2. Key Material and Construction Unlike traditional ferrite inductors, the DFE series utilizes a **metal alloy (iron powder) core**. * **Magnetic Powder Core:** The core is made of a metal magnetic material that offers superior magnetic saturation characteristics compared to ferrite. * **Monolithic-like Structure:** The coil is embedded within the metal powder, providing high mechanical strength and excellent shielding. * **Low Magnetic Flux Leakage:** The closed magnetic circuit design minimizes Electromagnetic Interference (EMI) with surrounding components. --- ### 3. Applications and Use Cases This component is typically used in high-frequency DC-DC converters where space is limited and efficiency is critical. * **Smartphones & Wearables:** Power management units (PMICs) for CPU/GPU cores. * **IoT Devices:** Battery-powered modules requiring compact footprints. * **SSD/HDD Power Rails:** High-current power lines that require low DC resistance to prevent energy loss. --- ### 4. Part Number Decoder Understanding the Murata nomenclature for this part: | Code | Meaning | | :--- | :--- | | **DFE** | Series name (Metal Alloy Inductor) | | **201610** | Dimensions (2.0mm x 1.6mm x 1.0mm) | | **E** | Specific internal characteristic code | | **R33** | Inductance value (R = decimal point; 0.33 µH) | | **M** | Tolerance (M = ±20%) | | **#** | Packaging/Suffix (e.g., Reel size or RoHS status) |