The **HCF1007-R68-R** is a high-current, surface-mount (SMD) power inductor. It is part of the HCF1007 series, typically manufactured by companies like **Eaton (Bussmann)**. These inductors are designed for high-frequency DC-DC converters and voltage regulator modules (VRMs). ### 1. Part Number Breakdown Understanding the nomenclature helps identify the component's specific characteristics: | Segment | Meaning | Details | | :--- | :--- | :--- | | **HCF** | Series Name | High-current, high-frequency power inductor. | | **1007** | Package Size | Approximately 10.3mm x 7.0mm x 6.4mm. | | **R68** | Inductance Value | **0.68 µH** (R denotes the decimal point). | | **-R** | RoHS Compliance | Indicates the part is lead-free and RoHS compliant. | --- ### 2. Key Technical Specifications Below are the typical electrical parameters for the 0.68 µH variant: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.68 µH ± 20% | | **Rated Current ($I_{rms}$)** | ~31 Amperes (Current causing 40°C temp rise) | | **Saturation Current ($I_{sat}$)** | ~35 Amperes (Current causing 20% drop in inductance) | | **DC Resistance (DCR)** | ~1.15 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Core Features and Construction * **Ferrite Core Material:** This material ensures low core losses at high frequencies, making it efficient for modern power supplies. * **Magnetically Shielded:** The construction minimizes Electromagnetic Interference (EMI), which is critical in densely packed circuit boards. * **Low DCR:** The very low Direct Current Resistance (mΩ range) minimizes power dissipation as heat, increasing overall system efficiency. * **High Saturation:** It can handle high peak currents without the inductance "collapsing," which is vital for stable power delivery during load spikes. --- ### 4. Typical Applications The HCF1007-R68-R is commonly found in environments requiring high power density: 1. **Multi-phase Vcore regulators:** Used in CPU and GPU power delivery on motherboards and servers. 2. **Voltage Regulator Modules (VRM):** Converting high voltage to low voltage for high-speed digital ICs. 3. **Point-of-Load (POL) Converters:** Decentralized power conversion on complex PCBs. 4. **Data Storage:** Powering high-speed SSDs and RAID controllers. ---