BBL series machined board to board low profile through hole stacking terminal strips with a 2.54mm pitch. These board to board PCB header terminal strips are single row and have a low profile design which achieves a 3.89mm board spacing when mated with the SL series low profile socket strips. The body of the BBL series board-to-board PCB header terminal strip is made from black glass filled polyester and the contacts are made from phosphor bronze with a 0.51μm gold plating and brass outer shell. The temperature range at which these board to board stacking header terminals can be used is -55 to +125°C.