1-5316560-0 is a 140-position board-to-board receptacle connector from TE Connectivity's FH 0.6mm pitch series, designed for mezzanine board-to-board configurations. This vertical-mount SMT connector features a 0.6mm centerline pitch, 4mm stack height, and dual-row inline contact layout with gold-plated mating areas. The receptacle includes grounding contacts, polarization for mating alignment, and solder peg retention for secure PCB mounting. It operates within a temperature range of -40°C to 85°C and is rated for 50 VAC with 200 VAC dielectric withstanding voltage. This connector is ideal for high-density interconnect applications requiring reliable board-to-board connections in compact electronic assemblies.