... choke coil,ferrite choke coil,high current choke coil,helmholtz coil 1.features: ER2806 for choke coil,ferrite choke coil,high current choke coil,helmholtz coil ... used for Transformer,inductor and Other ... choke coils, Fixed choke coils, Filtering coils, Conformal coater inductors, Molded Power Line Chokes, Inductors.EPC type transformer:Switching Transformer with 20 to 80kHz Frequency Range,switching ...