Toroid Mounts and Headers: Widest selection of surface mount And through hole Toroid Mounts Magnetic Core Materials: Iron powder cores, alloy powder cores, ferrite powder cores Bobbins And Hardware: Widest selection of surface mount & through hole bobbins Transformer Tape: High quality and cost effective transformer tape Shielded Coil Forms: Tunable shielded coil form assemblies Antistatic Parts Trays: Standard Part Tray Configurations Custom Molding And Tooling: High Quality, Low Cost Custom Tools and Molds