The **FP1007R3-R17-R** is a high-current, flat-pac surface-mount power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It is part of the FP1007R series, specifically designed for high-frequency, high-current power applications like Voltage Regulator Modules (VRMs). --- ### 1. Technical Specifications Below are the primary technical parameters for the `R17` variant: | Parameter | Specification | | :--- | :--- | | **Inductance** | 170 nH (0.17 µH) | | **Tolerance** | ±10% | | **DCR (Direct Current Resistance)** | 0.29 mΩ (Nominal) | | **Isat (Saturation Current)** | 61 A (at 25°C) | | **Irms (Rated Current)** | 50 A | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 10.2mm x 7.0mm x 7.0mm (SMD) | --- ### 2. Key Features and Construction * **High Current Density:** Capable of handling saturation currents exceeding 60A despite its small footprint. * **Ferrite Core Material:** Uses a high-frequency ferrite material that minimizes core losses at high switching frequencies. * **Flat-Pac Design:** The "R3" designation refers to the specific mechanical version/footprint, optimized for pick-and-place assembly. * **Low DCR:** The extremely low resistance (0.29 mΩ) ensures high efficiency and minimal heat generation during operation. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variations: | Segment | Meaning | | :--- | :--- | | **FP1007** | Product Series (High frequency, high current) | | **R3** | Mechanical Revision / Version 3 | | **R17** | Inductance value (R17 = 0.17 µH) | | **-R** | RoHS compliant / Tape and Reel packaging | --- ### 4. Common Applications This inductor is typically used in multi-phase buck converters for high-performance computing components: * **CPU/GPU Voltage Regulators:** Powering processors in servers and desktops. * **FPGA Power Supplies:** Providing high current at low voltages. * **Data Centers:** High-density power modules and point-of-load (POL) converters.