The **FP1308R2-R44-R** is a high-current, shielded drum core power inductor designed and manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. It is part of the FP1308 series, which is optimized for high-frequency voltage regulator modules (VRMs). --- ### ## Technical Specifications The part number follows a specific nomenclature. Here is the breakdown of its key parameters: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.44 µH (440 nH) | | **Tolerance** | ±10% | | **Current Rating (Irms)** | ~40 - 52 Amps (depending on thermal rise) | | **Saturation Current (Isat)** | ~48 Amps | | **DC Resistance (DCR)** | 0.32 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package/Case** | Surface Mount (SMD) - 13.4mm x 8.2mm x 8.0mm | --- ### ### Key Features 1. **High Current Handling:** Due to its very low DC Resistance (DCR), this part can handle extremely high currents without excessive heat generation. 2. **Ferrite Core Material:** Uses a high-frequency ferrite core that ensures low core losses, making it ideal for multi-phase buck converters. 3. **Magnetic Shielding:** The part is shielded to minimize Electromagnetic Interference (EMI), which is critical in dense PCB layouts. 4. **Halogen Free & RoHS Compliant:** Meets modern environmental safety standards for electronics manufacturing. --- ### ### Common Applications This inductor is typically found in high-performance computing and power management circuits, including: * **Graphics Cards (GPUs):** Power delivery phases for high-end video cards. * **Server Processors:** Voltage Regulator Modules (VRMs) for CPUs. * **Data Centers:** High-density power supplies and Point-of-Load (POL) converters. * **Networking Gear:** High-speed routers and switches requiring stable power under high loads. --- ### ### Part Number Decoding The suffix **"R2-R44-R"** indicates specific variations: * **FP1308:** The series designation (size and footprint). * **R2:** Version code (often relating to internal structure or pad design). * **R44:** Inductance value (0.44 microhenries). * **-R:** RoHS compliance suffix. ---