... high saturation flux density 4.ROHS certification. EE/EI/EFD transformersPossessing of high permeability,high saturation ... of transformers of our main product:EC, EE.EI and PQ type high frequency switch transformerEP ... 2016 2625 3230 3535 4040 5050EI, EE series: EI, EE-5.0, 8.3, 10, 13, 16, 19, 22, ... introduction of transformers of our main product:EC, EE.EI and PQ type high frequency switch transformerEP ...