The Molex 2042231110 is a 9-circuit plug housing from the Squba 1.8 series, built on a 1.80mm pitch.
Sealed Housing and Locking Ramp — What They Mean on the Line
It's not an IP-rated standalone component — the seal works as a system with the mating half and the crimped terminals seated correctly. If you're building a harness for a washdown zone or an outdoor sensor, this is the housing you want; the unsealed Squba siblings won't keep water out. The locking ramp is a positive latch that clicks when the plug is fully home in the receptacle. A half-latched connector in a high-vibration environment will frett the terminals and drop the circuit — the ramp gives you an audible and tactile confirmation that the pair is locked. No secondary lock or TPA on this housing, so the ramp is your only retention; make sure it engages fully before the harness leaves the bench.
Procurement Note: Contacts Are Sold Separately
The listing carries a clear note: Contacts Not Included. This is standard for modular crimp-to-wire systems, but it's an easy miss on the BOM if you're used to pre-loaded headers. Factor the terminal order code and the crimp tool into your build plan.