5917631-3 is an 80-position board-to-board plug connector assembly from TE Connectivity's .050 CHAMP Series, designed for printed circuit board termination. This vertical-mount connector features a 1.27 mm (0.05 in) centerline pitch with 2 rows of socket contacts, gold-plated mating areas with 0.3 µm thickness, and tin-plated solder tails. The connector has a through-hole termination method with a termination post length of 3.1 mm and an overall height of 7 mm. Constructed with a black thermoplastic housing rated UL 94V-0 for flammability, this EU RoHS and ELV compliant connector is ideal for board-to-board interconnect applications requiring reliable, high-density connections.