5786554-1 is a 20-position vertical receptacle header from the AMPLIMITE .050 Series, featuring Action Pin tails for reliable PCB mounting. This connector includes rails and latchblocks for secure mating and alignment, with gold-plated phosphor bronze contacts (minimum 0.000030 inch gold on mating end) and nickel underplating. The housing is constructed from thermoplastic material rated 94V-0 and is SMT compatible, with a steel shell plated bright nickel over copper. Designed for high-density interconnect applications, this connector utilizes a compact 0.050 x 0.100 inch (1.27 x 2.54 mm) centerline grid spacing, making it ideal for data and device connectivity where space is limited.