## HCF1305-2R2-R Electronic Component Overview The **HCF1305-2R2-R** is a high-current, shielded drum core power inductor manufactured by **Eaton (formerly Bussmann/Coiltronics)**. It is part of the HCF1305 series, designed specifically for high-frequency and high-density power applications. --- ### Technical Specifications The following table outlines the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 18.5 Amperes | | **Saturation Current (Isat)** | 28.0 Amperes | | **DC Resistance (DCR)** | 3.5 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Dimensions** | 12.8mm x 12.5mm x 5.0mm | --- ### Key Features 1. **High Current Density:** Capable of handling significant current relative to its physical footprint. 2. **Magnetic Shielding:** The design minimizes Electromagnetic Interference (EMI), making it suitable for noise-sensitive circuits. 3. **Low DCR:** The low DC resistance ensures minimal power loss and reduced heat generation during operation. 4. **Ferrite Core Material:** Provides stable performance across a wide range of frequencies. ### Common Applications The HCF1305-2R2-R is typically found in power management circuits where high efficiency is critical: * **DC-DC Converters:** Used as energy storage elements in buck, boost, or SEPIC converters. * **Voltage Regulator Modules (VRMs):** Found in servers and high-performance computing hardware. * **Battery Powered Systems:** Ideal for portable electronics requiring efficient power conversion. * **Distributed Power Systems:** Used in industrial and telecommunications infrastructure. --- ### Component Footprint Example While footprints vary by CAD software, the physical layout generally adheres to these dimensions: ```markdown L: 12.8mm (+/- 0.3) W: 12.5mm (+/- 0.3) H: 5.0mm (Max) ```