ECCOSORB^® MF is a series of rigid, magnetically loaded epoxide rod, bar and sheet materials. They are widely used as absorbers, attenuators, and terminations in waveguides and coaxial lines.  They are also used as a high-Q inductor-core material in such devices as slug tuners.  Simple RF filters can be formed by passing filament leads through small blocks of ECCOSORB^® MF or by casting appropriate sections of the material around such leads by using one of the electrically equivalent castable absorbers.  There are also applications in antenna elements and in certain free space absorbers. 

For assistance in termination design, see the diagram below or the technical bulletin under: Termination Design Considerations