high power low loss soft ferrite cores big size ferrite core EE,EC ,ETD,EI ,UU ,UI ,UYF ,PM ,T , H40HK5HK10 C10.8060.8060.806mm-1Le233233233mmAe290290290mm2Ve678396783967839mm3AL3116779015580nH/N2W325325325g S/NS/N:P03310105transformer corelarge size ferrite coremn zn ferrite core soft ferrite cores