1.25 mm pitch SMT right-angle — the board-space trade-off
The 1-1734261-5: This 15-position, single-row header from the High Performance Interconnect (HPI) series uses a 1.25 mm pitch — tight enough to save board edge real estate but still hand-solderable with a fine tip.
1 A per contact — signal duty only
The 1 A current rating per pin (at 100 VAC) puts this header in signal-level territory. It is not a power interconnect.
Peer comparison: 1-2232960-3 vs 1-1734261-5
The closest functional peer from the same brand is 1-2232960-3, a 3-position, 2.50 mm pitch header rated 2 A at 50 VAC. It is through-hole, not SMT, and box-packed rather than tape-and-reel. The 1.25 mm pitch of 1-1734261-5 gives a denser footprint; the 2.50 mm pitch peer carries more current per pin. They are not footprint-compatible but serve similar board-to-cable applications at different density levels. Other peers (1-292164-1 at 2.00 mm pitch with detent lock, 1394090-1 at 2.85 mm pitch with latch holder) differ in locking mechanism, termination, and pitch — none is a drop-in substitute.