1-5177986-4 is a 100-position fine pitch SMT stacking plug connector designed for parallel board-to-board applications. This connector features a 0.8mm pitch with 8µ" gold plating on contacts and is supplied in tape and reel packaging for automated assembly. Key dimensions include A: 39.20mm (1.543"), B: 45.80mm (1.803"), and C: 44.20mm (1.740"). The connector is part of the 0.8mm Free Height (FH) connector series, offering various stacking height options when paired with compatible receptacles. This RoHS compliant connector is ideal for high-density interconnect applications in consumer electronics, telecommunications, and industrial equipment where space-saving parallel board connections are required.