### Overview of FP0705R1-R07-R The **FP0705R1-R07-R** is a high-frequency, high-current power inductor part of the **FP0705 series** manufactured by **Eaton (formerly Cooper Bussmann)**. It is specifically designed for use in multi-phase voltage regulator modules (VRMs) and high-density power converters. --- ### Technical Specifications The part number encodes specific characteristics of the inductor. Below is a breakdown of its technical parameters: | Parameter | Value | | :--- | :--- | | **Inductance** | 70 nH (0.07 µH) | | **Tolerance** | ±10% | | **Current Rating (Irms)** | 52 A | | **Saturation Current (Isat)** | 75 A (at 25°C) | | **DC Resistance (DCR)** | 0.25 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 7.0 x 7.0 x 4.95 mm | --- ### Key Features 1. **High Current Handling:** With a saturation current of 75A, it is capable of handling the extreme transient loads required by modern CPUs and GPUs. 2. **Ultra-Low DCR:** The 0.25 mΩ resistance minimizes power loss due to heat (I²R losses), making it highly efficient. 3. **Ferrite Core Material:** The use of ferrite ensures low core losses at high switching frequencies (up to 2 MHz+). 4. **SMD Design:** The surface-mount design with a rugged construction is ideal for automated assembly. --- ### Typical Applications This component is found in environments where high power density and efficiency are critical: * **Voltage Regulator Modules (VRMs):** Used in servers, workstations, and high-end gaming PCs. * **Point of Load (POL) Converters:** Distributed power architectures. * **Data Centers:** Powering high-speed networking equipment and storage arrays. * **Graphics Cards (GPUs):** Supporting the high-current demands of modern video processing units. --- ### Part Number Nomenclature Understanding the suffix and prefix: * **FP0705:** Series name (dimensions approx. 7x7x5mm). * **R1:** Revision or specific internal designator. * **R07:** Inductance value (R07 = 0.07 µH = 70 nH). * **-R:** Indicates the part is RoHS compliant.