The 0461164281 is a round Ferrite Core Assembly for 6.3mm cable. The common-mode conducted EMI from 200 to 1000MHz frequency range. The polypropylene cases are meeting the RoHS restrictions of hazardous substances and have a flammability rating of UL94V-0. Round cable snap-it assembly is controlled for impedances only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.
Many of the snap-it parts have flat core equivalents
Single turn impedance tests for the 61 material performed on the 4193A vector impedance analyser