## Overview of SC1813FH-R56 The **SC1813FH-R56** is a surface-mount (SMD) power inductor commonly used in power management circuits. It is designed to handle high current loads while maintaining a small physical footprint. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electronic characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.56 µH (indicated by "R56") | | **Tolerance** | ±20% (Standard for this series) | | **DC Resistance (DCR)** | ~0.010 Ω (Max) | | **Saturation Current ($I_{sat}$)** | ~7.7 Amperes | | **RMS Current ($I_{rms}$)** | ~6.0 Amperes | | **Package Type** | SMD (Surface Mount Device) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Characteristics The **1813** in the part number refers to the dimensions of the component in imperial units: * **Dimensions:** Approximately 8.89mm x 6.10mm. * **Height:** Roughly 5.0mm (High profile for better thermal dissipation). * **Core Material:** Ferrite core, which offers high efficiency and low magnetic loss at high frequencies. --- ### 3. Key Functions & Applications The SC1813FH-R56 serves several critical roles in electronic assemblies: * **Energy Storage:** Primarily used in **DC-DC Converters** (Buck, Boost, or Buck-Boost) to store energy in a magnetic field during the switching cycle. * **Filtering:** Acts as a low-pass filter to smooth out ripples in voltage supply lines, protecting sensitive downstream components. * **Noise Suppression:** Helps reduce Electromagnetic Interference (EMI) in high-speed switching circuits. #### Common Use Cases: 1. **Motherboards:** Powering CPU/GPU voltage regulator modules (VRMs). 2. **Telecommunications:** In base stations and networking hardware. 3. **Industrial Power Supplies:** Where high reliability and high current handling are required. --- ### 4. Circuit Symbol and Footprint In schematic capture and PCB design software (like Altium or KiCad), it is represented as: ```text L1 ----(UUU)---- 0.56 uH ``` ---