YJ41003TC is a parylene coated toroidal core in Magnetics J material

Magnetics J material is a medium permeability general purpose ferrite material. Well suited for both EMI/RFI filterian and broadband transformers

Ferrite toroids offer high magnetic efficiency as there is no air gap, and the cross sectional area is uniform.

Parylene C^® is a vacuum deposited coating providing good resistance to moisture and organic solvents. Electrical characteristics are superior to other coatings.