146893-1 is a 64-position surface mount receptacle connector designed for board-to-board stacking applications. It features a 1.00 mm centerline pitch with an in-line dual-row contact layout and supports board-to-board stack heights of 8.00 mm, 9.00 mm, and 10.00 mm. The connector utilizes copper alloy contacts with gold (30) plating on the mating area and tin-lead over nickel on the termination area, housed in a black high-temperature thermoplastic body with UL 94V-0 flammability rating. It includes locating posts and a vacuum cover for automated assembly, and is compliant with IEEE 1386 mezzanine connector standards. This connector is ideal for high-density interconnect applications requiring reliable vertical stacking between PCBs.