The **FP1108L2-R150-R** is a high-current, low-profile power inductor typically used in multi-phase Voltage Regulator Modules (VRMs) and DC-DC converters. It is part of the FP1108 series manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. --- ### 1. Technical Specifications The following table highlights the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Inductance** | 150 nH (0.150 µH) | | **Tolerance** | ±10% | | **Saturation Current ($I_{sat}$)** | ~72 A to 80 A (varies by temp) | | **RMS Current ($I_{rms}$)** | ~54 A | | **DC Resistance (DCR)** | 0.29 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 10.8 x 8.0 x 8.0 mm | | **Termination** | Surface Mount (SMD) | --- ### 2. Key Internal Features * **Ferrite Core Material:** Designed for high-frequency applications with very low core losses. * **High Current Handling:** The "flat-wire" or "power bead" construction allows for extremely high saturation currents in a small footprint. * **Low DCR:** The ultra-low DC resistance (measured in micro-ohms) ensures high efficiency and minimal heat generation during high-load operations. --- ### 3. Application Use Cases This specific inductor is engineered for high-density power environments where space is limited but power demand is high. * **Computing:** Multi-phase Vcore regulators for CPUs and GPUs. * **Datacenters:** High-current point-of-load (POL) converters for servers and networking hardware. * **Voltage Regulator Modules (VRM):** Used in buck converters to step down voltage while providing stable current. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **FP1108:** Series name (dimensions approx. 11x8mm). * **L2:** Internal design revision or layer configuration. * **R150:** Inductance value ($R = \text{decimal point}$, $150 = 0.150$ µH). * **-R:** RoHS compliant. ---