## Overview of SD7030-101-R The **SD7030-101-R** is a high-performance, shielded surface-mount (SMD) power inductor. It is manufactured by **Eaton (formerly Coiltronics)** and is part of the SD7030 series. These components are primarily used for energy storage and filtering in power management circuits. --- ### Technical Specifications The following table outlines the key electrical and physical characteristics of the SD7030-101-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 100 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 0.72 Amperes | | **Saturation Current (Isat)** | 0.81 Amperes | | **DC Resistance (DCR)** | 402 mΩ (Max) | | **Shielding** | Shielded (Magnetic) | | **Operating Temperature** | -40°C to +125°C | | **Dimensions** | 7.0mm x 7.0mm x 3.0mm | --- ### Key Features * **Magnetic Shielding:** The part is constructed with a ferrite drum and ring core. This minimizes Electromagnetic Interference (EMI), making it ideal for noise-sensitive applications. * **Low Profile:** With a maximum height of 3.0mm, it is suitable for compact electronic assemblies where vertical space is limited. * **High Power Density:** Despite its small footprint, it can handle significant current relative to its size. * **RoHS Compliant:** The "-R" suffix indicates that the part is lead-free and compliant with environmental regulations. --- ### Common Applications The SD7030-101-R is commonly found in the following types of circuits: 1. **DC-DC Converters:** Used as an energy storage element in buck (step-down) or boost (step-up) converters. 2. **Filtering:** Used in LC circuits to smooth out voltage ripples in power supplies. 3. **Battery Powered Devices:** Ideal for laptops, handheld instruments, and portable medical equipment due to its efficiency and size. 4. **LED Drivers:** Provides stable current regulation for lighting applications. --- ### Terminal Configuration and Mounting The part features a **flat top surface** specifically designed for reliable pick-and-place machinery during the SMT (Surface Mount Technology) assembly process. The solder pads are located on the bottom of the ferrite body to ensure a secure mechanical and electrical connection to the PCB.