The **FP1007R6-R18-R** is a high-current, non-isolated power inductor typically used in multi-phase voltage regulator modules (VRMs). It is part of the FP1007R series manufactured by Eaton (formerly Cooper Bussmann). --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics. | Parameter | Specification | Details | |:---|:---|:---| | **Inductance** | 180 nH (0.18 µH) | Fixed value for high-frequency switching | | **Tolerance** | ±10% | Precision range for the inductance | | **Full Saturation Current ($I_{sat}$)** | 61 A | Current at which inductance drops by ~20% | | **DC Resistance (DCR)** | 0.29 mΩ | Extremely low to minimize power loss | | **Operating Temp** | -40°C to +125°C | Suitable for industrial/server environments | | **Package Size** | 10.2 x 7.0 x 6.7 mm | Surface Mount (SMD) "Power Bead" style | --- ### 2. Key Features and Materials The "R6" in the part number refers to the specific core material and design revision optimized for efficiency. * **Ferrite Core Material:** Provides low core losses at high frequencies, making it ideal for high-speed DC-DC converters. * **Power Bead Construction:** Features a single-turn "flat wire" through a ferrite core. This design results in nearly zero AC copper loss and very low DC resistance. * **RoHS Compliant:** The "-R" suffix indicates compliance with lead-free and environmental standards. --- ### 3. Applications Due to its high current handling and small footprint, the FP1007R6-R18-R is found in: 1. **Server CPU/GPU VRMs:** Providing stable voltage to high-wattage processors. 2. **Point-of-Load (POL) Converters:** Used in telecommunications and data centers. 3. **High-Current DC-DC Buck Converters:** Specifically multi-phase systems where multiple inductors work in parallel. --- ### 4. Part Number Breakdown | Segment | Meaning | |:---|:---| | **FP1007** | Series Name (Package size 10.0mm x 7.0mm) | | **R6** | Core Material / Revision Version | | **R18** | Inductance value (R18 = 0.18 µH) | | **-R** | RoHS compliant |