What it is and where it sits in the series
The Molex 430450822 is the 8-circuit member of the Micro-Fit 3.0 43045 family — a dual-row, shrouded male header with board lock and a locking ramp. The mating interface runs at 0.118 inch (3.00 mm) pitch with 2 rows spaced the same 3.00 mm apart, and the right-angle through-hole body delivers a board footprint that shares the series footprint geometry. It is listed as Style Board to Cable/Wire.
What the key ratings mean
Current rating is 8 A per circuit — the split plating on this part is worth reading carefully: the mating face carries 15.0 µin (0.38 µm) gold, which governs cycle life and contact resistance at first mate, while the solder-post side is 100.0 µin (2.54 µm) tin for solderability and thermal-cycle durability. Voltage rating is 600 V — well above typical board-level bus voltages, so the headroom is not the constraint here.
Plating grade and what it drives
The 15.0 µin gold on the mating face puts this header in the durable-reconnect tier of the Micro-Fit 3.0 range — it supports higher mating cycle counts than the tin-plated variants in the same series. The 100.0 µin tin post is specified for through-hole solder engagement, not for the mating interface, so the cycle-life argument runs only on the gold-plated mating end. If the application is a permanent install with no field reconnects, the gold grade is a margin benefit rather than a hard requirement; if the board-level connector sees repeated mating in service, the gold thickness here is the relevant spec to check against the expected cycle count.
Where this class is used
The 43045 series is a general-purpose power-and-signal header deployed across automotive, industrial automation, medical instrumentation, and telecom infrastructure. The 8-circuit count fits mid-density harnesses. The 600 V rating gives headroom for industrial bus rails; the -40 °C to 105 °C operating window covers both under-hood automotive and non-climate-controlled industrial enclosures.
Lifecycle and compliance
Product status is Active with ROHS3 Compliant marking. The housing is Liquid Crystal Polymer, Glass Filled with a UL94 V-0 flammability rating. No official successor order code appears on this listing, so the sourcing path is to RFQ against the listed BOM quantity.