The **FP0807R1-R07-R** is a high-current, shielded drum core power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **FP0807 series**, which is specifically designed for high-frequency voltage regulator modules (VRMs) and multi-phase applications. --- ### 1. Key Technical Specifications Below are the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 70 nH (0.07 µH) | | **Tolerance** | ±10% | | **DCR (Direct Current Resistance)** | 0.46 mΩ (Max) | | **Isat (Saturation Current)** | 100 A (at 25°C) | | **Irms (Heating Current)** | 48 A | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 8.0mm x 7.3mm x 7.0mm | | **Mounting Type** | Surface Mount (SMD) | --- ### 2. Breakdown of the Part Number The alphanumeric code provides specific details about the component's construction: * **FP0807**: The series identifier. "0807" refers to the approximate footprint dimensions (8.0mm x 7.3mm). * **R1**: Indicates a specific revision or mechanical design variant within the series. * **R07**: Represents the inductance value. `R` acts as a decimal point, so `R07` = 0.07 µH (or 70 nH). * **-R**: Indicates that the part is **RoHS compliant**. --- ### 3. Core Features and Benefits 1. **High Current Handling**: With a saturation current of 100A, it is capable of handling massive power spikes without losing its inductive properties. 2. **Low DCR**: The extremely low resistance (0.46 mΩ) minimizes power loss and heat generation, which is critical for high-efficiency power supplies. 3. **Ferrite Core Material**: This material ensures low core losses at high frequencies, making it ideal for modern switching regulators. 4. **Controlled DCR**: Often used in circuits where the DCR is utilized for current sensing, requiring tight tolerances. --- ### 4. Typical Applications * **Multi-phase Regulators**: Used in CPU/GPU power delivery for servers and high-end workstations. * **Voltage Regulator Modules (VRM)**: Essential for converting high input voltages to the low voltages required by microprocessors. * **Point-of-Load (POL) Converters**: High-speed DC-DC converters located close to the load. * **Data Centers**: Integrated into power distribution units for cloud computing hardware. ---