The 1776038-4: Through-hole solder termination — the 0.126" (3.20 mm) contact tail length suits standard PCB thicknesses; the header is wave-solder compatible. Mates with Buchanan series plug connectors that accept 20-24 AWG wire; the shrouded header provides keying to prevent mis-mating with non-matching plugs.
ROHS3 Compliant and UL94 V-0 rated; the tin-plated copper alloy contacts are suited for environments where mating cycles are moderate and corrosive exposure is controlled.
Comparing Peer Alternatives
Peer MPN 1-2305909-1 and 1-2213935-1 are also active bulk-packaged Buchanan headers; each carries the same 5.08 mm pitch and UL ratings, but position count varies. No direct pin-to-pin replacement without verifying the layout.