The **FP1107R2-R30-R** is a high-current, magnetically shielded power inductor commonly used in voltage regulator modules (VRMs) and high-density power applications. It belongs to the Eaton (formerly Cooper Bussmann) FP1107 series. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 300 nH (0.30 µH) | | **Tolerance** | ±10% | | **Current Rating ($I_{rms}$)** | 42 Amperes | | **Saturation Current ($I_{sat}$)** | 52 Amperes | | **DC Resistance (DCR)** | 0.29 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package/Case** | SMD (Surface Mount Device) | --- ### 2. Key Features * **High Frequency Performance:** Designed for high-speed switching power supplies with frequencies reaching up to 2MHz. * **Low DCR:** The exceptionally low Direct Current Resistance (0.29 mΩ) minimizes power loss and reduces heat generation, making it highly efficient. * **Magnetically Shielded:** The ferrite core construction minimizes Electromagnetic Interference (EMI) with surrounding components. * **Robust Construction:** The "R2" designator often refers to a specific version or revision of the core material/geometry optimized for high-current handling. --- ### 3. Application Use Cases This component is typically found in environments requiring stable high-current delivery in a small footprint: 1. **Multi-phase VRMs:** Used in motherboards and server power stages to supply power to CPUs and GPUs. 2. **Point of Load (POL) Converters:** High-efficiency DC-DC converters located close to the load. 3. **Data Storage:** Power regulation for high-speed SSD arrays and enterprise networking equipment. --- ### 4. Dimensions and Footprint The FP1107 series has a standard physical footprint, typically around: * **Length:** 11.0 mm * **Width:** 7.2 mm * **Height:** 7.5 mm