The 1-770858-1 is a 10-position, dual-row vertical PC board pin header designed for wire-to-board applications within the Mini-Universal MATE-N-LOK system. It features a .163 inch centerline spacing and is constructed from UL94V-0 rated material. The contacts feature a duplex plating with gold in the mating area and tin on the solder tails, ensuring a reliable connection. This header is designed to mate with Mini-Universal MATE-N-LOK plug housings and is suitable for various commercial and industrial applications requiring durable, high-density interconnections.