The 10139781-083402LF from Amphenol Communications Solutions is surface mount mezzanine connector, receptacle with outer shroud contacts, 80 position, 2 rows and 0.031" (0.80mm) pitch. This is connector with board guide, pick & place and 0.461" (11.70mm) height above board. The 10139781-083402LF has copper alloy contacts with 8.00µin (0.203µm) thick gold finish and liquid crystal polymer (LCP) housing. Operating temperature range is from -40°C to +125°C.