Thunderline-Z Features

Surface Mount Bell Pin™ Offers Low Cost Alternative to Glass To Metal Feedthrus 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. Advanced modeling techniques were used to achieve a very high 50 ohm frequency range compared to Kovar SMT housings. Hermetic reliability is exactly that of a round ferrule type feedthru. The device mounts easily by simply machining a thru hole and a counterbore semi circle in the bottom of a package. It's similar to machining a standard round ferrule Feedthru. Update: Now you can receive the proven BellPin design as a mini surface mount 50 ohm feedthru. Based on Thunderline-Z's very successful SMT BellPin offering, this new product is one third less in size and is built with a smaller pin. The use of a smaller pin in the new mini surface mount package will enable customers to use the mini BellPin in both J band and K band frequency ranges. Expectations are this part will perform to limits between 22 and 25 GHZ.