The BellPin has been developed to work with lightweight aluminum or brass housings, easily mounting to the bottom of the package creating true surface mountable parts with increased performance. Rated with a VSWR of less than 1.5:1 up to 15 GHz and offering true 50 ohm performance, this technique is the ideal solution to costly, bulky Kovar packaging problems. The BellPin SMT Feedthru is made with a gold plated Kovar base and center conductor fired in place with low loss corning glass.