5177984-3 is a fine pitch SMT stacking plug connector designed for parallel board-to-board applications. This 80-position connector features 0.8mm free height (FH) design with 8µ" gold plating on contacts, and dimensions of A: 31.20mm (1.228"), B: 37.80mm (1.488"), and C: 36.20mm (1.425"). It offers a dielectric withstanding voltage of 500 VAC for 1 minute and operates over a temperature range of -40°C to +85°C including terminal temperature rise. The connector supports various stacking heights when paired with compatible receptacles, making it ideal for compact electronic assemblies requiring reliable board-to-board interconnections.