EE55 MP4 ferrite core 10+10 pins bobbin. Parallel Distance=49.0mm. Pin pitch1=5.0mm. Pin pitch2=7.5mm. Bobbin size=57.3mmX54.5mmX51mm. Horizontal bobbin coil transformer used in led driver. EE55 transformer used in electromagnetic shielding power field, household appliances, SMPS, medical equipments, CPs, lighting equipments, production equipments, etc.