5-5179009-3 is a fine pitch SMT stacking receptacle connector designed for parallel board-to-board applications. This connector features a 0.8mm pitch with 80 positions and 8µ" gold plating for reliable electrical contact. The connector has dimensions of A: 31.20mm (1.228"), B: 37.80mm (1.488"), and C: 36.20mm (1.425"), and supports stacking heights ranging from 9mm to 12mm when paired with compatible plug connectors. This RoHS compliant connector is ideal for high-density interconnect applications in consumer electronics, telecommunications, and industrial equipment where space-saving parallel board mounting is required.