... type 2.high permeability 3.high saturation flux density. 4.ROHS certification High Frequency Transformers Possessing of high permeability,high saturation flux ... power transformer pulse transformer telecom transformer audio frequency transformer isolated and line matching transformer ignition transformer EE5 current sensor ... , 60 EF series: EF-4539, 16, 20, 25, 32 ERL series: ERL-28, 35, 39, 42, 49 ETD ...