6-Position Header at 3.30mm Pitch
RoHS3 compliant. The base product number 1971906 covers the series variants; the full 3-1971906-3 suffix specifies the red insulation, 6-position, through-hole configuration.
Peer Comparison: 1-1871673-2
The closest functional alternative is 1-1871673-2 — a 4-position, right-angle, 2.50mm pitch header with a detent lock, also active. The 3-1971906-3 gives you two more circuits, a wider 3.30mm pitch, and a vertical orientation with latch holder. If your board layout needs a right-angle entry or a tighter pitch, the 1-1871673-2 is the cross-shop candidate.