# JST XH header

A JST XH through-hole shrouded header, 2.5 mm pitch, top entry: B2B-XH-A to B16B-XH-A and B20B-XH-A. Pin 1 is at the origin, the row runs along +X, the housing sits on the XY plane with its opening up, and the tails go down through the board.

## Source

JST XH connector catalogue, *Through-hole type shrouded header, Top entry type*, page 63, a copy at <https://mantech.co.za/datasheets/products/XH-JST.pdf> (JST's own site refuses automated downloads):

- pitch 2.5, A = 2.5 x (circuits - 1), and B = A + 4.9, 2.45 past the end pins each side
- height 7.0, depth 5.75, with the pins 2.35 from one face
- tails 3.4, posts 0.64 square

**Proportions, for looks only:** the shroud's wall and floor, and how high the posts stand in it. The polarising ribs and latch slots aren't modelled. The page gives the wafer as nylon 66, natural white. The material list has no nylon 66, so the part uses `pa6` (nylon 6), for looks and rough mass.

Side entry (S..B-XH-A) and SMT headers aren't here yet; see `COVERAGE.md`.