The WE-STAR-TEC and STAR-TEC LFS series are available for cables with diameters from 3.5 to 25mm. The difference between the two series is the core material. STAR-TEC ferrites have a NiZn core for supplementary interference suppression in the 1MHz to 1GHz range whereas the STAR-TEC LFS series feature a MnZn core for a low frequency suppression range from 300kHz to 30MHz. Both STAR-TEC snap ferrite are notable for their user-friendliness: The pre-fixed cable facilitates processing and cable clamping protection preventing errors when attaching to cables. The ferrites can be opened and refitted at any time with the patented safety key. The internal security locking system prevents unauthorized removal of the cable without the key.