... ee ferrite cores, ei type ferite cores, etd type ferite cores, ed type ferite cores, er type ferite cores, planar transformer cores ... ETD24, ETD29, ETD34, ETD44,ETD49 ■EFD TYPE CORES EFD10, EFD12.5, EFD15, EFD20, EFD25, EFD30 ■EC TYPE CORES EC28, EC35, EC43, EC39, ... EC54, EC59 ■EPC TYPE CORES EPC13, EPC15, EPC17, EPC19, ...