### Electronic Component Overview: FP1005R2-R15-R The **FP1005R2-R15-R** is a high-frequency, high-current power inductor typically manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **FP1005** series, which is characterized by its "flat-pac" (FP) design and exceptionally low DCR (Direct Current Resistance). --- ### 1. Key Technical Specifications | Parameter | Value | Description | | :--- | :--- | :--- | | **Inductance** | 150 nH (0.15 µH) | The nominal inductance at 0 Adc. | | **Tolerance** | ±10% | Variance allowed from the nominal inductance. | | **Isat (Saturation Current)** | ~61 A | Current level where inductance drops by a specific % (e.g., 20%). | | **Irms (Rated Current)** | ~53 A | Continuous current that causes a 40°C temperature rise. | | **DCR (DC Resistance)** | 0.29 mΩ (Typical) | Extremely low resistance to minimize power loss. | | **Package Size** | 10.2 x 7.0 x 4.95 mm | Physical dimensions of the surface mount device. | --- ### 2. Functional Characteristics * **Core Material:** Ferrite core technology, which provides high efficiency and low core losses at high frequencies. * **Design Style:** It is a "one-turn" or "bead" inductor design. This contributes to its ability to handle very high currents without saturating prematurely. * **Operating Temperature:** Typically rated for **-40°C to +125°C**, making it suitable for demanding industrial and computing environments. --- ### 3. Common Applications This part is specifically engineered for high-density power conversion. Common use cases include: 1. **Voltage Regulator Modules (VRMs):** Used in CPU and GPU power delivery on motherboards and server cards. 2. **Multi-phase Buck Converters:** Ideal for interleaved power stages where high current and high switching frequencies are required. 3. **Point-of-Load (POL) Converters:** Used in networking equipment and telecommunication base stations. --- ### 4. Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **FP** | Flat-Pac Series (Inductor Type) | | **1005** | Physical size (approx. 10mm x 7mm) | | **R2** | Version/Generation indicator | | **R15** | Inductance value (R15 = 0.15 µH) | | **-R** | RoHS compliant / Lead-free |