The 2-557101-5 is a right-angle receptacle connector from TE Connectivity's CHAMP .050 Series I interconnection system, designed for high-temperature applications with a 100-position configuration. The housing is constructed from glass-filled LCP (liquid crystal polymer) rated 94V-0 in black, with phosphor bronze contacts selectively plated with a minimum of 0.000030 inches (0.00076 mm) gold in the mating area and tin-lead plating in the solder tail area. The connector accommodates printed circuit board thicknesses from 0.031 to 0.063 inches nominal, and features brass retention legs with tin-lead plating for secure board mounting. Key dimensions include an overall length (A) of 2.891 inches (73.43 mm), width (B) of 2.450 inches (62.23 mm), depth (C) of 2.741 inches (69.63 mm), and mounting depth (D) of 2.524 inches (64.13 mm). This connector is ideal for high-reliability applications requiring robust interconnection in demanding thermal environments.