350220-1 is a 10-circuit socket header connector for the 5.0 mm Power Key Connectors (5.0 PKC) wire-to-board system, designed for power distribution in home appliances and gas appliances. The connector features a 5.0 mm contact centerline spacing with a positive lock mechanism and pre-tin duplex finish (gold plating in mating area with matte tin on solder tail over nickel underplate). It has a mated height of 19.4 mm and an A dimension of 1.095 inches (27.81 mm), with UL94V-2 flammability rating for the housing material. The connector includes protective design features such as locking levers surrounded by walls to prevent wire tangling and bubble-release design for potted applications. This socket header is commonly used in power circuit applications requiring reliable, compact connections with clear tactile feedback during contact insertion.