1-1761681-5 is a 50-position vertical header assembly connector designed for PCB mounting applications. It features a PCT housing with UL94V-0 flammability rating in black color and phosphor bronze posts with gold plating on the mating area and tin plating on the solder end over nickel. The connector has a 2.54 mm [.100 in] pitch spacing and overall dimensions of 68.58 mm [2.700 in] (B) x 71.12 mm [2.800 in] (A). This header assembly is suitable for board-to-board interconnect applications requiring reliable electrical connections and high-temperature material compatibility.