## FP1308-R11-R Electronic Component Overview The **FP1308-R11-R** is a high-frequency, high-current power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **FP1308 series**, which is specifically designed for high-density power applications such as multi-phase voltage regulator modules (VRMs). --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of the FP1308-R11-R: | Parameter | Specification | |:---|:---| | **Inductance** | 110 nH (0.11 µH) | | **Tolerance** | ±10% | | **DC Resistance (DCR)** | 0.43 mΩ (Max) | | **Rated Current (Irms)** | 52 A | | **Saturation Current (Isat)** | 84 A | | **Package / Case** | 13.4mm x 8.0mm x 8.0mm | | **Material** | Ferrite Core | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Design and Construction * **Flat-Pac™ Technology:** The "FP" in the part number stands for Flat-Pac. It uses a rectangular, surface-mount design that optimizes space on the PCB. * **Ferrite Core:** This material provides low core losses at high frequencies, making it ideal for efficient power conversion. * **Terminations:** It features robust, solderable pads designed to handle extremely high current without overheating the connection points. --- ### 3. Application Use Cases This component is typically found in environments where high efficiency and high current delivery are critical in a small footprint: 1. **Voltage Regulator Modules (VRMs):** Used in CPUs, GPUs, and ASICs to step down voltage while providing massive amounts of current. 2. **Point-of-Load (POL) Converters:** Decentralized power systems on complex motherboards. 3. **Data Centers:** High-end servers and networking equipment. 4. **Desktop and Laptop VRMs:** Specifically in high-performance gaming or workstation hardware. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **FP1308:** The Series name (indicating physical dimensions, roughly 13mm x 8mm). * **R11:** Represents the inductance value (R11 = 0.11 µH). * **-R:** Indicates RoHS compliance (Lead-Free). ---