05111165659 is a 3M Boardmount Socket from the 1502 Series, designed for board-to-board interconnect applications. This connector features a 2 mm x 2 mm pitch and is available in straight surface mount, straight through-hole, and right angle through-hole configurations. The socket utilizes a high temperature glass filled insulator (LCP for SMT, PCT for through-hole versions) and copper alloy contacts with nickel underplating and gold wiping area. The low height design helps minimize PCB stack height, and the connectors are end stackable with through-hole versions being side stackable. These sockets are ideal for applications requiring reliable board-to-board connections with reflow solder compatibility.