What this 6-position header fits
The 1-178141-2 is a 6-position, 2-row header from the Dynamic D-3100 series, pitched at 3.81mm. That 0.150" pitch and 0.300" row spacing are the footprint numbers you need to match against the board layout before routing the traces.
The solder tails are tin, which wets well in lead-free wave solder. That temp range covers most cabinet interiors and outdoor telecom enclosures.
