The 4-102975-0-07: The header is breakaway — the 14-position strip is part of a longer molded strip that can be snapped to any even pin count. All 14 positions are loaded, so this is a fixed-count part, not a cut-to-length option.
For a BOM line that calls out 4-102975-0-07, the options are: source remaining inventory through independent distribution (quoted per RFQ, lot-specific), or qualify a pin-compatible alternative from the same AMPMODU Mod II family — the 0.100-inch pitch, dual-row, unshrouded, right-angle footprint is a common industry standard, so a drop-in substitute from TE or another manufacturer is likely available with a similar pin count.
Mating and Board Fit — What Connects Here
The right-angle solder tails extend 0.110 inch (2.79 mm) below the board surface, which is a standard length for through-hole wave solder. The mating pin length of 0.318 inch (8.08 mm) provides enough engagement depth for most standard receptacles.