5-5179180-4 is a fine pitch SMT stacking receptacle connector designed for parallel board-to-board applications. This connector features a 0.8mm pitch with 100 positions and 8µ" gold plating for reliable electrical connections. It is rated for 100 VAC voltage, 0.5 ampere current, with contact resistance of 30 milliohms maximum and dielectric withstanding voltage of 500 VAC. The connector operates over a temperature range of -40°C to +85°C including terminal temperature rise. This receptacle is ideal for high-density interconnect applications requiring reliable board-to-board stacking in consumer electronics, telecommunications, and industrial equipment.