Higher operating frequencies of modern electronic equipment have “raised the bar”, literally, on the performance of EMI suppression components required for efficient (and lawful) operation of this equipment. This chart summarizes muRata’s progress in serving the need for low-cost, yet effective high-frequency EMI suppression ferrite beads. The “A” type bead is used as a “benchmark” and is considered to be a general-purpose component. Market trends for faster/higher-frequency equipment have driven the development of ferrite beads with increased ability to suppress interference well into the GHz region, as evidenced by our “E”, “H” and “G” type series.