SSM series board to board PCB surface mount box style socket strips with a 2.54mm pitch available in single or double row configurations and vertical or horizontal body orientation. The body of these SSM series board-to-board SMT box socket strips is made from black liquid crystal polymer and the contacts are made from phosphor bronze with a 0.25μm gold plating on the contact and matte tin on the tail. The temperature range at which these PCB board to board socket strips can be used is -55 to +125°C.
Part numbers SSM-XXX-X SH are single row, horizontal mount.
Part numbers SSM-XXX-X SV are single row, vertical mount.
Part numbers SSM-XXX-X DH are double row, horizontal mount.
Part numbers SSM-XXX-X DV are double row, vertical mount.

These SSM series board to board SMT box style socket strips will mate with the following:
TSW series through hole square post headers - stock number 767-0849 typically.
TSM series SMT square post headers - stock number 765-6458 typically.
TLW series low profile square headers - stock number 765-6127 typically.

2.54mm Board to Board and Wire to Board - Samtec