Stress relief contacts (also known as sliding contacts) are designed to simplify connection to the bead pins. In use, the installer slides the contact over the bead pin and then attaches the tab to the circuit trace.  The S110-1-R is a Microstrip and Coplaner Waveguide stress relief contact for 0.38 mm glass feedthru center conductor. Similar to the S110-3-R in construction, the S110-1-R has a smaller tab width. The tab width for the S110-1-R is 0.152 mm.