YW41003TC is a parylene coated toroidal core in Magnetics W material

Magnetics W material is a high permeability ferrite material used for EMI/RMI suppression, common mode chokes, pulse 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.