### Overview of HCF1007-6R8-R The **HCF1007-6R8-R** is a high-current, power inductor manufactured by Eaton (formerly Bussmann). It belongs to the **HCF1007 series**, which is designed for high-frequency, high-temperature applications where space and efficiency are critical. --- ### Key Specifications Below are the primary electrical and physical characteristics of the HCF1007-6R8-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 6.8 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 6.1 Amps (Typical) | | **Saturation Current (Isat)** | 5.5 Amps (Typical) | | **DC Resistance (DCR)** | 28.2 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 10.3mm x 7.0mm x 7.0mm (SMD) | | **Core Material** | Ferrite | --- ### Technical Components & Design Features #### 1. Ferrite Core Construction The "HCF" stands for **High Current Ferrite**. Ferrite cores provide high efficiency and low core losses at high frequencies. Unlike iron powder cores, ferrite does not age or degrade significantly under high-temperature stress. #### 2. Surface Mount Device (SMD) Design The component is designed for automated assembly. Its specific dimensions (1007) indicate a footprint of roughly **10.3mm x 7.0mm**. The 7.0mm height allows for a compact vertical profile while maintaining high energy storage capacity. #### 3. Saturation Characteristics The **Isat** (Saturation Current) of 5.5A is the point at which the inductance drops by a specific percentage (usually 20-30%). This inductor is designed for a "soft" saturation curve, ensuring stable performance even during transient current spikes. #### 4. Low DCR (DC Resistance) With a resistance of approximately **28.2 mΩ**, the part minimizes power loss through heat (I²R losses), which is vital for maintaining high efficiency in power supplies. --- ### Common Applications Due to its high current handling and reliability, this inductor is commonly used in: * **DC-DC Converters:** Point-of-load (POL) modules for servers and networking. * **Voltage Regulator Modules (VRMs):** Used in computing and telecommunications. * **Multi-phase Regulators:** Where high current density is required. * **Industrial Electronics:** High-temperature environments. --- ### Part Number Breakdown * **HCF:** Series name (High Current Ferrite). * **1007:** Physical size (Approx. 10mm x 7mm). * **6R8:** Inductance value ($6.8 \mu H$). The 'R' acts as a decimal point. * **R:** RoHS compliant / Lead-free.