2-5177986-3 is a fine pitch SMT stacking connector designed for parallel board-to-board applications. This connector features 80 contact positions and is available with 8 microinches gold plating, providing reliable electrical connections in compact form factors. The connector has dimensional specifications of 31.20 mm (1.228 inches) length, 37.80 mm (1.488 inches) width, and 36.20 mm (1.425 inches) height, making it suitable for space-constrained PCB layouts. The product is supplied in tape-and-reel format for automated assembly processes. These connectors are commonly used in telecommunications, computing, and industrial electronics where high-density interconnections and reliable stacking heights are required.