## HC2-R47TR-R Electronic Component Overview The **HC2-R47TR-R** is a high-current, low-profile power inductor typically used in DC-DC converters and voltage regulator modules (VRMs). It is manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)** as part of the HC2 series. --- ### 1. Key Technical Specifications The model number provides specific details about the component's performance characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.47 µH | | **Current Rating (Irms)** | ~52 Amps | | **Peak Current (Isat)** | ~77 Amps | | **DC Resistance (DCR)** | 0.60 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Tolerance** | ±20% | | **Package/Case** | Surface Mount (SMD) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **HC2**: Product series (High Current, size 2). * **R47**: Represents the inductance value. "R" acts as a decimal point (0.47 microhenries). * **T**: Packaging type (Tape and Reel). * **R**: RoHS compliant / Lead-free. --- ### 3. Physical & Material Features * **Core Material:** Powdered iron core technology, which provides excellent saturation characteristics and handles high transient current spikes without immediate core saturation. * **Construction:** It features a flat-wire winding design. This minimizes the "Skin Effect" and reduces DC resistance (DCR), allowing for higher efficiency and less heat generation. * **Shielding:** It is a magnetically shielded construction, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. --- ### 4. Common Applications Due to its high current handling and low profile, the HC2-R47TR-R is commonly found in: 1. **Multi-phase Buck Converters:** Used in CPU/GPU power supplies for servers and workstations. 2. **Voltage Regulator Modules (VRM):** High-speed switching power supplies. 3. **Point-of-Load (POL) Converters:** Providing stable power to FPGAs and ASICs. 4. **Battery Powered Systems:** Where high efficiency is critical to extending battery life. --- ### 5. Footprint Information (Approximate) ```text Length: 13.5 mm Width: 13.0 mm Height: 6.0 mm (Max) ```