The **HCF1007-2R2-R** is a high-current, low-profile power inductor typically used in DC-DC converters and voltage regulator modules (VRMs). It is manufactured by **Eaton (formerly Coiltronics)** and belongs to the HCF series, known for its high power density and ferrite core construction. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the HCF1007-2R2-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 2.2 µH (Nominal) | | **Tolerance** | ±20% | | **Saturation Current ($I_{sat}$)** | ~28 Amperes | | **RMS Current ($I_{rms}$)** | ~20 Amperes | | **DC Resistance (DCR)** | ~3.3 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 10.3mm x 7.0mm x 6.65mm | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ### 2. Key Features and Construction The HCF1007 series is engineered for efficiency in demanding power applications: * **Ferrite Core:** The core material provides high efficiency by minimizing core losses at high frequencies. * **High Current Handling:** Designed to handle significant current spikes without saturating (losing inductance). * **Low DCR:** The low direct current resistance minimizes power dissipation (heat) and improves overall system efficiency. * **Shielded Construction:** The design helps contain electromagnetic interference (EMI), which is critical for sensitive electronics. --- ### 3. Typical Applications This component is commonly found in circuits where high power must be managed in a compact space: 1. **Multi-phase Regulators:** Used in CPU/GPU power delivery for servers and workstations. 2. **DC-DC Converters:** Point-of-Load (POL) modules for telecommunications and industrial equipment. 3. **Battery Powered Systems:** High-efficiency power stages for portable high-draw devices. 4. **Solar Inverters:** Power management stages in renewable energy converters. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **HCF:** High Current Ferrite series. * **1007:** Dimensions (approx. 10mm x 7mm footprint). * **2R2:** Inductance value (2.2 microhenries). * **-R:** RoHS compliant.