Ebook: Guide to Using Ferrite Beads in a PCB
Inductive components like ferrites, including ferrite beads, have many legitimate uses related to controlling EMI and noise. Ferrite beads are effectively highly inductive components in large packages, but they have parasitic characteristics that cause them to act more like band-stop filters than low pass filters. In addition, these elements are sometimes seen as a cure-all for noise, but their frequency-dependent and current-dependent operating...