1-557102-7 is a 68-position vertical plug PCB connector from the TE Connectivity CHAMP .050 Series I interconnection system. This connector features phosphor bronze contacts with gold plating (minimum 0.00076 mm) in the mating area and tin-lead plating in the solder tail area, housed in a glass-filled nylon housing rated UL 94V-0. Key dimensions include A: 2.147 inches (54.53 mm), B: 1.978 inches (50.25 mm), C: 2.043 inches (51.89 mm), and D: 1.650 inches (41.91 mm). The connector accommodates PC boards with nominal thickness from 0.031 inches (0.79 mm) to 0.063 inches (1.60 mm) and includes brass retention legs with tin-lead plating for secure board mounting. This standard temperature variant without keying post is ideal for high-density interconnection applications requiring reliable signal transmission.