What this 2-pin header does on the board
The 5-146277-2: This is a 2-position, single-row, unshrouded breakaway header from the AMPMODU Mod II series. Rated 3A per contact with a gold mating finish (30µin), the contact interface resists corrosion and maintains low resistance over repeated mating cycles — a good fit for test fixtures, programming headers, or any board-to-board/cable link where the connector sees occasional disconnect.
Mating and termination checklist
Termination is through-hole solder — the 0.125" (3.18mm) post length suits standard 1.6mm PCBs. Mates with any AMPMODU Mod II receptacle or socket that accepts a 0.025" square pin on 0.100" centers. The push-pull fastening means no latch — fine for low-vibration bench or test setups; for high-shock environments, consider a shrouded header with locking ramp.
Sourcing and lifecycle status
ROHS3 compliant. Bulk packaging.