3-5177986-2 is a 60-position fine pitch SMT vertical plug connector designed for parallel board-to-board stacking applications. It features a 0.8mm contact pitch with 8µ" gold plating on the contact area and is supplied in tape and reel packaging for automated assembly. The connector has brass contacts with duplex plating including minimum 0.00020" gold on the contact area, minimum 0.00100" tin on the solder area, and minimum 0.00130" nickel underplating. Key dimensions include A: 23.20mm (.913"), B: 29.80mm (1.173"), and C: 28.20mm (1.110"). This connector is ideal for compact electronic devices requiring reliable parallel board-to-board interconnections with various stacking height options.