The **FP1308-R32-R** is a high-current, shielded power inductor designed by **Eaton (formerly Cooper Bussmann)**. It belongs to the **FP1308 series**, which is widely used in high-frequency voltage regulator modules (VRMs) and DC-DC converters. --- ### 1. Technical Specifications The following table outlines the primary electrical characteristics of the FP1308-R32-R: | Parameter | Value | | :--- | :--- | | **Inductance (L)** | 0.32 µH (Microhenries) | | **Tolerance** | ±10% | | **Current Rating (Irms)** | ~53 Amps | | **Saturation Current (Isat)** | ~64 Amps | | **DC Resistance (DCR)** | 0.44 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | Surface Mount (SMD) - 13.4 x 8.1 x 8.0 mm | --- ### 2. Key Features and Construction * **High Current Handling:** The "R32" variant is designed to handle very high saturation currents, making it ideal for multi-phase buck converters. * **Low DCR:** The use of flat wire technology results in extremely low direct current resistance, which minimizes power loss (heat) and improves efficiency. * **Ferrite Core Material:** This material ensures low core losses at high switching frequencies (up to 2 MHz). * **Shielded Construction:** The inductor is magnetically shielded to reduce Electromagnetic Interference (EMI), which is critical in densely packed PCBs. --- ### 3. Common Applications Due to its robust performance, the FP1308-R32-R is found in: * **Servers & Workstations:** Powering high-performance CPUs and GPUs. * **Networking Equipment:** High-speed routers and switches. * **Voltage Regulator Modules (VRM):** Specifically point-of-load (POL) converters. * **Industrial Electronics:** High-current power supplies. --- ### 4. Part Number Breakdown Understanding the Eaton nomenclature: * **FP1308:** The series designation (dimensions approx. 13mm length, 8mm height). * **R32:** Represents the inductance value (R32 = 0.32 µH). * **R:** Indicates compliance (RoHS compliant).