2.00 mm pitch, 4-position, dual-row breakaway header
The 2842142-2: The mating pin length is 0.157" (4.00 mm), and the insulator sits 0.059" (1.50 mm) above the board surface — a low profile that suits tight z-height budgets when stacking against a receptacle. Surface-mount termination with pick-and-place features means this header is designed for automated assembly on a reflow line — the Tape & Reel package feeds directly into a placement machine.
2 A signal duty with 3.94 µinch gold mating finish
The 125 VAC/DC rating covers most low-voltage board-level interconnects. The mating contact finish is 3.94 µinch (0.100 µm) gold over copper alloy. For repeated field-service disconnect, a thicker gold sibling (e.g., 8.00 µinch on 1376779-2) would offer more margin against fretting corrosion.
Unshrouded SMT breakaway — no polarisation, manual alignment
This saves board space and cost but requires care during assembly to avoid bent pins. The push-pull fastening means the mated pair is held by contact friction alone — no latch or lock.
Peer contrast: shrouded through-hole vs. unshrouded SMT
Peer 1376779-2 is a 3 A, 250 VAC through-hole header with 8.00 µinch gold mating finish — higher current and thicker gold, but through-hole only. If your design needs the higher current or the thicker gold, that part is a genuine alternative; if you need SMT, 2842142-2 is the only fit.