6-1761615-5 is a high-speed fine pitch STEP-Z interconnection system receptacle designed for board-to-board applications. This connector features 200 signal positions (ground contacts not included) with Pb-free plating for RoHS compliance. Key dimensions include A: 38.20 mm (1.504 in), B: 31.85 mm (1.254 in), and C: 15.93 mm (0.627 in), with a contact pitch of 0.65 mm (0.026 in) and row pitch of 1.30 mm (0.051 in). The connector utilizes solder ball termination with ball diameter of 0.60-0.55 mm (0.024-0.022 in) and includes an optional pick-up cap for automated assembly. This STEP-Z connector is ideal for high-speed parallel signaling systems requiring reliable board-to-board connections in telecommunications, computing, and data processing equipment.