### HC8LP-6R9-R: High Current Power Inductor The **HC8LP-6R9-R** is a high-performance, high-current power inductor manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. It is part of the HC8 series, designed specifically for high-density power applications where efficiency and thermal stability are critical. --- ### Technical Specifications The following table outlines the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Inductance** | 6.9 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~11.2 Amperes | | **Saturation Current (Isat)** | ~14.0 Amperes | | **DC Resistance (DCR)** | ~7.2 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | Surface Mount (SMT) | | **Dimensions** | Approx. 10.9mm x 10.4mm x 4.0mm | --- ### Key Internal Parts and Design features 1. **Core Material (Ferrite/Iron Powder):** The device uses a high-frequency, low-loss material that allows for high saturation levels and minimal core losses, even at high switching frequencies. 2. **Flat Wire Construction:** Unlike standard round-wire inductors, the HC8LP series often utilizes flat wire. This increases the cross-sectional area of the conductor, significantly reducing the **DC Resistance (DCR)** and improving heat dissipation. 3. **Shielded Structure:** The "LP" in the part number often signifies a "Low Profile" design. The component is magnetically shielded to minimize Electromagnetic Interference (EMI) with surrounding sensitive components on the PCB. 4. **Terminations:** The leads are designed for robust surface mount soldering, typically featuring tin-over-copper plating to ensure high reliability in industrial environments. --- ### Typical Applications The HC8LP-6R9-R is commonly found in the following electronic circuits: * **Multi-phase Regulators:** Used in VRMs (Voltage Regulator Modules) for CPUs and GPUs. * **DC-DC Converters:** High-efficiency buck, boost, or buck-boost converters. * **Renewable Energy:** Solar inverters and battery management systems (BMS). * **Industrial Electronics:** Distributed power systems and high-current POL (Point of Load) modules. --- ### Part Number Breakdown | Prefix | Series | Inductance Value | RoHS Status | | :--- | :--- | :--- | :--- | | **HC** | High Current | **6R9** = 6.9 Microhenries | **-R** = RoHS Compliant |