The **M5VF-50-R** is a high-performance, shielded power inductor part of the M5VF series manufactured by **Coiltronics (now a brand of Eaton)**. These components are specifically designed for high-density power applications where space and efficiency are critical. --- ### 1. Key Technical Specifications The part number "50-R" typically refers to the inductance value and RoHS compliance. Below are the typical specifications for this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 5.0 µH (Typical) | | **Shielding** | Magnetically Shielded | | **Tolerance** | ±20% | | **Mounting Type** | Surface Mount (SMD) | | **Packaging** | Tape and Reel (indicated by -R) | | **Core Material** | Ferrite | --- ### 2. Core Electronic Characteristics #### A. Magnetic Shielding The "VF" series features a closed magnetic path. This is crucial for: * **Reduced EMI:** Minimizing electromagnetic interference with surrounding components. * **High Density:** Allowing components to be placed closer together on a PCB without cross-talk. #### B. Low DC Resistance (DCR) The M5VF series is engineered with flat-wire or optimized winding technology to ensure very low DCR. This results in: * Lower power dissipation (less heat). * Higher overall efficiency in power conversion circuits. #### C. Soft Saturation The ferrite core is designed to handle peak currents without a sudden drop in inductance. This provides a safety margin in "over-current" or "startup" conditions in power supplies. --- ### 3. Common Applications Due to its small footprint and high current handling, the M5VF-50-R is commonly found in: * **DC-DC Converters:** Used as the energy storage element in buck, boost, or buck-boost topologies. * **Computing & Servers:** Voltage Regulator Modules (VRMs) for CPUs and GPUs. * **Consumer Electronics:** High-end laptops, tablets, and gaming consoles. * **Industrial Power:** Compact power modules where thermal management is a priority. --- ### 4. Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **M5** | Series Frame Size (Dimensions) | | **VF** | Vertical/High-Frequency Ferrite Design | | **50** | Inductance Code (5.0 microhenries) | | **-R** | RoHS Compliant / Tape & Reel Packaging |