Contact finish and current rating
The 431603102: Tin plating at 60 µin (1.52 µm) on the brass contact carries the 18 A rating — the full plating thickness across the mating interface is what makes the current rating credible for power-interconnect duty, not just signal-level use.
Mechanical fit — orientation and board retention
Right-angle through-hole orientation places the connector against the PCB face for lateral mating entry; the board lock stakes the header to the board during wave or reflow without a separate mounting bracket, and the locking ramp on the housing side adds a positive-seating feature the design engineer should confirm mates with the matching Sabre receptacle or plug body.
Insulator, temperature, and voltage
The PA46 / Nylon 4/6 glass-filled insulator supports the 600 V rating and the -40°C to 75°C operating window — the upper limit is the figure that governs derating for a sustained 18 A load, not the ambient shelf temperature.