Single-pin breakaway for test points and single-wire drops
With only one pin, it serves as a dedicated test point, a single-wire interconnect, or a programming header where you need exactly one circuit and no extra real estate.
Sizing the current and temperature envelope
Mating and board-fit checklist
The push-pull fastening provides no locking; in vibration-prone applications, consider a shroud or a dab of threadlocker on the mating housing. Board footprint: the single through-hole pin requires a 0.025" square hole or a 0.032" round plated-through hole.
Active production — no obsolescence concern
The product status is Active, meaning TE Connectivity continues to manufacture this part. It is RoHS Compliant. Sourced through independent distribution — confirmed per RFQ. The bulk package means parts are loose in a bag, not tape-and-reel; order quantities are flexible.
Why this single-position header beats a multi-position breakaway
Compared to a multi-position breakaway like 1394090-1 (6 positions, shrouded, right-angle, latch holder), this 1-position unshrouded vertical header saves board space and cost when you only need one circuit. The trade-off: no polarization, no locking, and no vibration-rated retention — it is a signal-only point, not a harness interconnect. Against 1-1871673-2 (4 positions, shrouded, right-angle, detent lock), the single-pin version eliminates the board-lock feature and the dual-row density. If your BOM calls for exactly one position and you do not need the mechanical retention of a shroud, 9-146274-0-01 is the leaner choice.