The **FP1006R2-R12-R** is a high-performance, high-current power inductor typically used in multi-phase voltage regulator modules (VRMs). It is part of the FP1006 series manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Parameter | Value | | :--- | :--- | | **Inductance (L)** | 120 nH (0.12 µH) | | **Tolerance** | ±10% | | **Full Load Current ($I_{sat}$)** | ~61 Amps (at 25°C) | | **DC Resistance (DCR)** | 0.29 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | --- ### 2. Physical Characteristics This component is designed with a "Flat-Pac" (FP) construction, which optimizes it for high-density power layouts. * **Dimensions:** Approximately 10.2mm x 8.0mm x 6.0mm. * **Core Material:** Ferrite core, which offers low core losses at high frequencies. * **Packaging:** Provided in Tape & Reel (the "-R" suffix). * **Construction:** Robust design with integrated terminals that serve as the landing pads for soldering. --- ### 3. Key Features & Applications #### Features * **Ultra-Low DCR:** The 0.29 mΩ resistance minimizes power dissipation ($P = I^2 R$), which is critical for efficiency in high-current paths. * **High Saturation:** It can handle massive current spikes without the inductance dropping significantly. * **Frequency Range:** Optimized for high-frequency switching regulators (up to several MHz). #### Common Applications 1. **Server & Networking:** Powering high-end CPUs, GPUs, and ASICs. 2. **Voltage Regulator Modules (VRMs):** Used in multi-phase buck converters. 3. **Data Centers:** High-density power supplies and point-of-load (POL) converters. 4. **Graphics Cards:** High-wattage power delivery systems. --- ### 4. Part Number Breakdown ```text FP 1006 R2 - R12 - R | | | | | | | | | └── Packaging (R = Tape & Reel) | | | └─────── Inductance Value (R12 = 0.12µH / 120nH) | | └──────────── Version Code (R2 = Revision/Series variant) | └──────────────── Size Dimensions (10 x 6 mm footprint) └──────────────────── Series Name (Flat-Pac Inductor) ```