Typical uses include internal power and signal interconnects in consumer electronics, industrial controls, and white goods where a compact, polarized housing is needed.
Key Specs and the So-What
The 2.50mm pitch is the standard for the XH series — it gives enough creepage for low-voltage DC power and signal circuits without wasting board space. That covers most indoor equipment and non-sealed industrial enclosures. The free-hanging design means no PCB footprint is needed on the wire side — just crimp the contacts, insert them, and latch the housing to the header.
For the XH series, the standard mating contact is JST part number SXH-001T-P0.6 (for 22-28 AWG wire) or the tin-plated variant. Always confirm the wire gauge and contact plating (tin vs gold) against your application current and cycle life requirements before committing the BOM.
The XHP-3 is the 3-position member of the XHP family. The same housing format is available in 4-position (XHP-4), 5-position (XHP-5), and 6-position (XHP-6) variants, all sharing the same 2.50mm pitch, single-row layout, and natural nylon 6 material. The choice is driven purely by the number of circuits on the BOM — the footprint and header pitch are identical across the range.