The 5-103080-3: This is a TE Connectivity AMP Connectors AMPMODU Mod II header, 5 circuits in a single row on 0.100" (2.54mm) pitch. The shroud is a full 4-wall design — it protects the square male pins during handling and guides the mating receptacle into alignment, which matters when you're plugging a cable assembly into a board that's already mounted in an enclosure. Rated 3 A per contact with tin-on-tin finish (100 µinch on both mating and post sides). Tin is the workhorse choice for moderate environments: it's cost-effective and reliable for a few dozen mating cycles inside a dry cabinet. The operating range runs -65°C to 105°C, so it handles the thermal swing inside an industrial panel or telecom chassis without issue.
Pitch, mounting, and board footprint
Insulation height is 0.549" (13.94mm) — the shroud adds vertical standoff, so confirm clearance above the header in your assembly. The housing is black thermoplastic rated UL94 V-0, which is the standard flame rating for equipment inside an enclosure.
Mating and termination
The connector uses a push-pull fastening type — no latch, just friction from the shroud-to-receptacle interference. For a 5-position single-row header, the retention force is modest; if the cable will see vibration, consider a secondary strain relief or a locking receptacle variant. Termination is solder to the board; the contact material is brass with a tin post finish.