The **FP1308R2-R32-R** is a high-current, shielded drum core power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It is part of the FP1308 series, specifically designed for high-frequency voltage regulator modules (VRMs) and DC-DC converters. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.32 µH (320 nH) | | **Tolerance** | ±10% | | **DC Resistance (DCR)** | 0.32 mΩ (Typical) | | **Saturation Current ($I_{sat}$)** | 60 Amps | | **RMS Current ($I_{rms}$)** | 48 Amps | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 13.4mm x 8.0mm x 8.0mm | --- ### 2. Key Features * **High Current Density:** Capable of handling very high peak currents without core saturation, making it ideal for modern CPU and GPU power delivery. * **Low DCR:** The extremely low DC resistance (0.32 mΩ) minimizes power loss and heat generation, increasing overall system efficiency. * **Ferrite Core Material:** Uses a high-frequency ferrite material that provides low core losses at switching frequencies up to several megahertz (MHz). * **SMD Design:** Surface-mount technology (SMD) packaging allows for automated pick-and-place assembly. --- ### 3. Application Use Cases This specific inductor is commonly found in environments where high efficiency and high current are required in a small footprint: 1. **Multi-phase Buck Converters:** Used in VRMs for servers, workstations, and high-end gaming PCs. 2. **Point-of-Load (POL) Modules:** Distributed power systems requiring localized voltage regulation. 3. **Network and Telecom:** High-speed routers and switches where stable power delivery to ASICs/FPGAs is critical. 4. **Voltage Regulator Modules:** Specifically designed for "Vcore" applications for processors. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **FP1308:** The series identifier (13.4mm x 8.0mm footprint). * **R2:** Revision or internal designator for the winding style. * **R32:** The inductance value ($R32 = 0.32\mu H$). * **-R:** RoHS compliant. ---