Epoxy, Urethane, Silicone; choice of encapsulant for high reliability magnetic components

Sandia National Laboratories has been encapsulating magnetic components for over 40 years. The reliability of magnetic component assemblies that must withstand a variety of environments and then function correctly is dependent on the use of appropriate encapsulating formulations. Specially developed formulations are critical and enable us to provide high reliability magnetic components. This paper discuss epoxy, urethane, and silicone formulations for several of our magnetic components.