... type 2.high permeability 3.high saturation flux density. 4.ROHS certification High Frequency Transformers Possessing of high permeability,high saturation flux ... about at 100oC the power loss goes bottom.high frequency transformers.power-transformers,choke coils,communciation syandby transformers ... chargers, alarm system, TV and CRT monitor displays, UPS, VCD/DVD players, audio and visual equipment, OA ...