The **HC8-2R6-R** is a high-current power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the HC8 series, designed specifically for high-frequency, high-current applications where space and efficiency are critical. ### 1. Technical Specifications Below are the key electrical and physical characteristics of the HC8-2R6-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 2.6 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 16.5 Amps (Typical) | | **Saturation Current (Isat)** | 22.8 Amps | | **DC Resistance (DCR)** | 3.5 mΩ (Nominal) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Dimensions** | ~10.9mm x 10.4mm x 8.0mm | --- ### 2. Core Components and Construction The device is engineered using specialized materials to handle high power density: * **Magnetic Core:** Utilizes a powdered iron core material. This provides a "soft" saturation characteristic, meaning the inductance drops gradually rather than abruptly when current exceeds the rated limit. * **Winding:** Uses heavy-gauge copper wire to minimize DC Resistance (DCR), which reduces heat generation and improves overall energy efficiency. * **Packaging:** It features a robust, magnetically shielded construction. This minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. --- ### 3. Key Features * **High Current Density:** Capable of handling significant amperage relative to its small physical footprint. * **Low Core Loss:** Optimized for high-frequency switching, typically used in ranges up to 2MHz. * **Thermal Stability:** Designed to maintain performance integrity even in high-temperature environments. --- ### 4. Typical Applications The HC8-2R6-R is commonly found in the following electronic circuits: 1. **Voltage Regulator Modules (VRMs):** Used in servers and desktop computers to step down voltage for CPUs. 2. **DC-DC Converters:** Found in distributed power systems and battery-powered equipment. 3. **Multi-phase Regulators:** Used in high-current power supplies where multiple inductors work in parallel. 4. **Filtering:** Acting as an energy storage element or a high-frequency filter in power lines. ---