... :phenolic 2.features:high-frequency 3.supply match core 4.range:EE,EF,EFD,EPC,ER,EC ... :1.We can supply the bobbin with matched core.2.Can be custom-made as client's ... bobbin ETD39Bobbin Features:High-frequency Bobbin Shape :vertical and horizontal Bobbin Range: EE,EI,EF, EFD, EPC,PQ ... 3pin pitch ±0.2 As a supplier of magnetic core, bakelite bobbin and transformer, we are continuously improves technologies ...