Connector Identity and Series Position
The 431603104: The locking ramp on the housing body draws the header flush against the board surface during insertion, which matters in field-service scenarios where vibration can work a standard friction-fit header loose over time. Board-lock retention supplements — not replaces — the solder joint; the joint still carries the full current path.
Current and Voltage Ratings
Rated 18 A per contact at 600 V — the combination puts this squarely in power-distribution territory, not signal-level duty. The 7.50 mm pitch provides adequate creepage and clearance for 600 V operation, but check your PCB coating and clearance stack-up against your target insulation class before committing. At 18 A through tin-plated contacts, the contact resistance contribution to温升 is non-trivial at elevated ambient — derate if your board runs warm.
Operating Temperature and Material
The insulation body is glass-filled polyamide (PA46) / nylon 4/6 — the 75 °C upper limit is the operating ceiling, not the storage limit. PA46 holds up reasonably well in production heat but is more hygroscopic than PCT or LCP; if the board sees wash cycles or high-humidity environments, confirm the material post-treatment specification with Molex.
Lifecycle and Compliance
Listed Active with ROHS3 Compliant status — standard production, no EOL flag. The Sabre 43160 series is a long-standing Molex industrial line, not a short-run product, so lifecycle risk on this specific 4-circuit member is low. Confirm compliance scope against your own RoHS/REACH reporting requirements before specifying.