The **FP1108L1-R065-R** is a high-current, high-frequency Power Inductor commonly used in voltage regulator modules (VRMs) and DC-DC converters. It belongs to the FP1108 series manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. --- ### ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 65 nH (Nanohenries) | | **Tolerance** | ±10% | | **Full Part Number** | FP1108L1-R065-R | | **Irms (Rated Current)** | 72 A | | **Isat (Saturation Current)** | 100 A | | **DCR (DC Resistance)** | 0.18 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 11.0mm x 8.0mm x 7.5mm (SMD) | --- ### ### Key Features 1. **High Power Density:** Designed to handle extremely high current (up to 100A peak) in a relatively small surface-mount footprint. 2. **Low DCR:** The direct current resistance is exceptionally low (0.18 mΩ), which minimizes power loss and heat generation during operation. 3. **Flat-Wire Construction:** Uses a flat-wire design to maximize current carrying capacity and reduce "Skin Effect" losses at high frequencies. 4. **Ferrite Core Material:** Specifically engineered for high-frequency switching power supplies, ensuring minimal core losses. --- ### ### Typical Applications This part is typically found in high-performance computing environments where stable, high-current power delivery is critical: * **Multi-phase VRMs:** Used in CPU/GPU power stages for servers and gaming PCs. * **Data Centers:** Power modules for high-speed networking and storage arrays. * **Point of Load (POL):** High-current DC-DC converters for FPGAs and ASICs. --- ### ### Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **FP1108** | Product Series / Dimensions (11mm x 8mm) | | **L1** | Internal Revision / Variation code | | **R065** | Inductance Value (R065 = 0.065µH or 65nH) | | **-R** | RoHS Compliant / Lead-Free |