Bobbin >> EFD
Introduce of Surface Mount Bobbins
Mounts: Component has wire terminated to leads which are attached to a molded plastic structure, or leads of component are used and slide through a hole or slot for anchoring. Mounts are used to make handling of awkward components easier in production.
Bobbin: Transformers and Inductors. Leaded bobbins. Windings on printed circuit bobbin with core attached. Many available in surface mount.
Popular Surface Mount bobbins, through Holes types for through hole mounts, are for mounting wound inductor, choke, or transformer coils.
Features of ferrite bobbin EFD
Bobbin EFD is belong to “core with bobbin”, and has the features of Low profile. Rectangular center leg, hence higher means length per turn (MLT). Terminating multi-filar windings to EFD bobbin pins is difficult. The advantage of using ferrite bobbin EFD is lower cost and ease in manufacturing, especially for high volume. Because of lower cost, if the volume is very large, ferrite bobbin EFD custom transformer is the way to go. There are Horizontal orientation with through-holes and surface-mount terminals. Available in themoset and thermoplastic.
Bobbin EFD Material: Phenolic T375J
Pin of Bobbin EFD Material:CP WIRE
Bobbin EFD cost: relatively low.
Bobbin EFD UL Class: UL 94V-0
Application of Bobbin EFD
Bobbin EFD for Flyback transformer, switch mode power application, or application where the switching frequency is below 500 Khz.