Ferrite cores 1 mnzn ferrite cores for switch power transformers 2 mnzn ferrite cores for crt monitor transformers 3 high-magnetic-conductivity mnzn ferrite cores for pulsed transformers, broadband transformers, filters, and inductance 4 mnzn ferrite core for emi resistant applications 5 nizn ferrite cores 6 nizn ferrite cores for emi resistant applications