The **FP1007R1-R12-R** is a high-current, non-isolated power inductor typically used in multi-phase voltage regulator modules (VRMs). It is manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). ### 1. Key Technical Specifications The part number follows a specific nomenclature. Here is the breakdown of its primary electrical characteristics: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 120 nH (0.12 µH) | Fixed value at 0 Adc | | **Rated Current ($I_{rms}$)** | 61 Amps | Maximum continuous thermal current | | **Saturation Current ($I_{sat}$)** | 85 Amps | Point where inductance drops by ~20% | | **DCR (DC Resistance)** | 0.29 mΩ | Measured at 20°C (±10%) | | **Footprint** | 10.2 x 7.0 x 7.0 mm | Surface Mount (SMT) | | **Material** | Ferrite Core | Low core loss for high-frequency use | --- ### 2. Component Features * **High Frequency Performance:** Optimized for switching frequencies up to 2 MHz. * **Low DCR:** The extremely low resistance (0.29 mΩ) minimizes power loss and heat generation, which is critical for high-efficiency power supplies. * **Tight Tolerance:** Designed to provide stable performance across varying temperature ranges. * **Halogen Free & RoHS Compliant:** Meets modern environmental standards for lead-free soldering. --- ### 3. Typical Applications This inductor is engineered for high-density power environments, particularly where space is limited and current demands are high: * **Computing:** Multi-phase VRMs for CPUs, GPUs, and ASICs in servers and workstations. * **Networking:** Power supplies for routers, switches, and base stations. * **Data Centers:** High-current DC-DC converters and Point-of-Load (POL) modules. --- ### 4. Comparison of the FP1007R Series The "R12" indicates the inductance value. Different versions of the FP1007R1 exist for different tuning requirements: | Part Number | Inductance (nH) | Saturation Current (A) | DCR (mΩ) | | :--- | :--- | :--- | :--- | | FP1007R1-R12-R | 120 | 85 | 0.29 | | FP1007R1-R15-R | 150 | 70 | 0.29 | | FP1007R1-R17-R | 170 | 61 | 0.29 | ---