SL series board to board machined through hole single row socket strips with a 2.54mm pitch and a low profile design. The body of these SL series board-to-board PCB socket strips is made from black glass filled polyester and the contacts are made from phosphor bronze with a 0.76μm gold plating and tin shell. The temperature range at which these board to board machined stacking terminals can be used is -55 to +125°C.
Part numbers SL-XXX-X-10 have hollow leg contacts with a 3.10mm pin shoulder height.
Part numbers SL-XXX-X-12 are micro sockets which have hollow leg contacts with a 2.41mm pin shoulder height.

These SL series board-to-board machined socket strips mate with the following:
BBL series header terminal strips: see stock number 766-6367 typically.
BBS series header terminal strips: see stock number 766-6442 typically.
TS series header terminal strips - see stock number 765-6414 typically.

2.54mm Board to Board and Wire to Board - Samtec