The **HC2LP-R47** is a high-current, low-profile power inductor typically used in DC-DC converters and voltage regulator modules (VRMs). It belongs to the **HC2LP series** manufactured by Cooper Bussmann (now part of Eaton). --- ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the HC2LP-R47: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.47 µH (Microhenries) | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~52.0 Amperes | | **Saturation Current (Isat)** | ~70.0 Amperes | | **DC Resistance (DCR)** | ~0.67 mΩ (milliohms) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ## Key Features ### 1. High Current Density Designed with a "flat-wire" construction, this inductor minimizes the **skin effect** and allows for exceptionally high current handling relative to its size. ### 2. Low Profile The "LP" in the part number stands for **Low Profile**. These components are engineered to be short (usually under 6mm in height), making them ideal for dense server boards or compact consumer electronics where vertical space is limited. ### 3. Magnetic Shielding The core is typically made of a powdered iron or ferrite material that provides magnetic shielding. This reduces **Electromagnetic Interference (EMI)**, ensuring that the high-frequency switching noise does not affect neighboring components. --- ## Typical Applications The HC2LP-R47 is most commonly found in high-performance power delivery circuits: * **Multi-phase VCORE Regulators:** Used in PC motherboards and servers to power CPUs and GPUs. * **Point-of-Load (POL) Converters:** Decentralized power modules that convert high voltage to low voltage near the chip. * **Voltage Regulator Modules (VRMs):** Found in telecommunications and networking equipment. * **Battery Powered Systems:** Where high efficiency and low DCR (power loss) are critical. --- ## Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **HC2:** Series identifier (High Current). * **LP:** Low Profile design. * **R47:** Inductance value (R = decimal point, so 0.47 µH). * **-R:** RoHS compliant (Lead-free). ---