12-position right-angle header for XH wire-to-board
The S12B-XH-A-1 is a 12-position, single-row header from JST's XH series, on a 2.50mm pitch.
2.50mm pitch, 12 circuits — footprint fit
At 12 positions, this header sits between the 10- and 13-position siblings in the XH right-angle family. The 2.50mm pitch is standard for JST XH, so the board footprint is consistent across the series — only the row length changes. Compared to the S12B-XH-A (no -1 suffix), this version carries the '-1' which typically indicates a different packaging or plating variant — the electrical and mechanical specs are identical per the evidence.
Listed as Active with no end-of-life notice. RoHS non-compliant per the listing — verify your application's exemption requirements if you need RoHS compliance.
Mates with XH female housings
This header mates directly with JST XH series female housings such as XHP-12. The detent lock engages with the housing latch for a positive retention. Pin 1 is identified by the chamfered corner on the shroud — standard JST XH keying.