The **HC8LP-R75-R** is a high-current, low-profile power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the HC8LP series, specifically designed for high-density power conversion applications. --- ### ## Technical Specifications The following table highlights the primary electrical and physical characteristics of the HC8LP-R75-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.75 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 22.5 Amperes | | **Saturation Current (Isat)** | 28.0 Amperes | | **DC Resistance (DCR)** | 1.85 mΩ (typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | Surface Mount (SMD) | | **Dimensions** | ~10.9mm x 10.4mm x 4.0mm | --- ### ## Key Features * **High Current Density:** Capable of handling significant amperage (up to 22.5A continuous) despite its small footprint. * **Low Profile:** The "LP" designation stands for Low Profile, making it suitable for thin electronic assemblies like laptops or blade servers. * **Magnetically Shielded:** The construction minimizes Electromagnetic Interference (EMI), which is critical for sensitive surrounding circuitry. * **Low DCR:** The very low Direct Current Resistance (1.85 mΩ) ensures minimal power loss and reduced heat generation during operation. * **Halogen Free & RoHS Compliant:** The "-R" suffix indicates that the part is compliant with environmental regulations regarding hazardous substances. --- ### ## Applications This inductor is typically used in power management stages where space is at a premium and efficiency is mandatory: 1. **Multi-phase Buck Regulators:** Used in CPU/GPU power supplies (VRMs). 2. **DC-DC Converters:** High-frequency point-of-load (POL) modules. 3. **Battery Powered Systems:** Handheld devices and portable computers. 4. **Networking & Telecom:** Distributed power architectures and base stations. --- ### ## Internal Construction (Simplified) ```text [ Core Material ] --> Iron Powder / Composite (High saturation) [ Winding ] --> Flat copper wire (To reduce DCR and skin effect) [ Termination ] --> Lead-free solder plating ```