The **HCF1007-100-R** is a high-current, low-profile power inductor typically used in DC-DC converters, voltage regulator modules (VRMs), and point-of-load (POL) applications. It is part of the HCF1007 series manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). --- ### 1. Key Technical Specifications The part number follows a specific nomenclature. In this case, **"100"** represents the inductance value, and **"R"** indicates RoHS compliance. | Parameter | Specification | | :--- | :--- | | **Inductance** | 10.0 µH (Microhenries) | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~5.3 Amperes (typical temperature rise) | | **Saturation Current (Isat)** | ~6.0 Amperes (typical) | | **DC Resistance (DCR)** | ~30.5 mΩ (Milliohms) max | | **Operating Temperature** | -40°C to +125°C | | **Dimensions** | 10.3mm x 7.0mm x 6.4mm (approx.) | --- ### 2. Core Features * **High Current Capability:** Designed to handle significant current without saturating quickly, making it ideal for power-hungry processors. * **Ferrite Core Material:** Uses a ferrite core which provides low core losses at high frequencies. * **Magnetic Shielding:** The construction minimizes Electromagnetic Interference (EMI), which is crucial for sensitive electronic circuits. * **Surface Mount (SMD):** Designed for automated pick-and-place assembly. --- ### 3. Application Use Cases This specific inductor is commonly found in: * **Computing:** Multi-phase regulators for CPUs and GPUs. * **Telecommunications:** High-density power supplies for routers and switches. * **Industrial:** Compact DC-DC converters where vertical space is limited but high power density is required. --- ### 4. Part Number Breakdown ```text HCF 1007 - 100 - R | | | | | | | +-- RoHS Compliant | | +------- Inductance Code (100 = 10 x 10^0 = 10µH) | +------------- Size Code (approximate footprint dimensions) +------------------ High Current Ferrite Series ```