Ferrite Cores

Conformal Coatings for Magnets and Ferrite Cores

SCS conformal coatings have provided excellent protection to magnets and ferrite cores for over five decades. Moisture barrier, electrical isolation and chemical barrier properties can be achieved by one or more of the following SCS coatings:

• Parylene coatings
• Liquid coatings
• Plasma polymerized coatings
• ALD coatings
• Multilayer coatings

SCS Parylene coatings, for example, provide low dielectric constants, lower dissipation factors and high dielectric strengths compared to alternative coatings, making the coatings uniquely suited for electrical insulation on miniature wire wound components. Parylenes also provide protection against abrasion damage that may occur during the winding process.

No need for tape in wound applications.

Adhesive tape had long been the insulation of choice between winding and metal components; however, as components shrunk in size, applying tape was not only difficult, but it also contributed to lower yields of acceptable parts. SCS coating eliminates the need for tape while also virtually eliminating faulty components.

A perfect fit for molded plastic components

Anyone who works with molded plastic NdFeB magnetic components knows how fragile and susceptible to corrosion they can be. SCS coatings provide protection in two ways; they increase component strength, and their moisture vapor transmission properties guard against corrosion caused by atmospheric moisture.