Basic Spacing between Centers is a dimensioning term used in component datasheets and footprint design. It defines the exact theoretical distance between the centerlines of two pins, pads, or leads. Because it is a theoretical reference point used to establish a grid, it carries no tolerance itself; tolerances are applied to the physical features placed on that grid.
Heard on the job
The datasheet shows the pin pitch as 0.50 mm BSC, so set your grid to that before placing the pads.
Also heard as
- basic dimension