The ALPS SPGA110100 is a small pitch surface-mountable single-row pin grid array (PGA) socket, made of an insulated thermoset plastic body and epoxy sealed lid. It has a pitch of 1.00mm and comes with 100 pins, with an optional z-axis spring action. It is designed to provide an extremely reliable connection between the chip and the PCB and offers an optimal contact pressure between the two. The contact pins all have gold plating, making them corrosion resistant.