The 650918-5 is a half-size Type R vertical pin assembly designed for Eurocard connectors conforming to DIN 41612 and IEC 60603-2 specifications. It features 48 contact positions distributed across rows A, B, and C, with ACTION PIN posts measuring 0.64 mm (0.025 inch) square. The assembly has dimensions of 54.37 mm × 49.35 mm (2.140 × 1.943 inches) with a contact spacing of 2.54 mm (0.100 inch), and offers selectable post lengths of 6.35 mm (0.250 inch) or 13.23 mm (0.521 inch) to accommodate various PCB thicknesses. The housing is constructed from glass-filled polymer with copper alloy contacts, and achieves DIN Performance Level II rating. This connector assembly is widely used in industrial electronics, telecommunications, and instrumentation applications where reliable high-density interconnection and standardized form factors are required.