5177984-4 is a 100-position fine pitch SMT stacking plug connector designed for parallel board-to-board applications. This connector features a 0.8mm free height design with 8µ" gold plating for reliable electrical contact. The connector has dimensions of A: 39.20mm (1.543"), B: 45.80mm (1.803"), and C: 44.20mm (1.740"), and operates within a temperature range of -40°C to +85°C including terminal temperature rise. It is rated for 500 VAC dielectric withstanding voltage for 1 minute. This connector is ideal for compact electronic assemblies requiring reliable board-to-board interconnections with various stacking height options.