1-1903128-0 is a panel-type tab housing connector designed for the TE Connectivity Dynamic Series D-1100D double-row standard connector system. This connector accommodates 40 positions with a 2mm pin pitch and features a black color housing with X-key configuration for keying. The connector has a gold plating finish and external dimension A of 52.1 mm, providing a compact yet robust interface for wire-to-board applications. The panel-type design allows for direct mounting to enclosure panels, making it ideal for industrial control systems, power distribution modules, and equipment requiring secure, latch-protected connections with different locking heights.