Board-fit checklist for the 4-position breakaway
The 5-146278-4 is a 4-position, single-row, unshrouded header from the AMPMODU Mod II series. It mates with AMPMODU Mod II receptacles and female socket housings that accept 0.025-inch square posts. Rated 3 A per contact with tin-on-tin mating surfaces (100.0 µinch tin over copper alloy). Tin plating is cost-effective for moderate mating cycles — expect 50–100 cycles before contact resistance drifts.
Sourcing and compliance snapshot
Sourced through independent distribution against your BOM quantity. Current pricing and lead time confirmed at RFQ — no stock-holding claim, no firm price on page.
What mates with this header
This unshrouded header mates with AMPMODU Mod II female socket housings (e.g., 5-146279 series) and crimp-socket terminals accepting 22–30 AWG wire. Confirm the mating housing's pin-entry depth to avoid bottoming out.