... 3.high saturation flux density. 4.ROHS certification EI type transformersPossessing of high permeability,high saturation flux density ... of transformers of our main product:EC, EE.EI and PQ type high frequency switch transformerEP type ... , 8.3, 10, 13, 16, 19, 22, 25, 28, 30, 33, 35, 40, 42, 50, 55, 60EF series ... : EF-4539, 16, 20, 25, 32ERL series: ERL-28, 35, 39, 42, 49ETD series: ETD-29, 34, 39 ...