12-Circuit Panel-Mount Plug Housing for Mini-Fit Jr 5559
The Molex 0039012121 is a 12-position plug housing from the Mini-Fit Jr 5559 series, designed as the male half of a wire-to-wire or wire-to-board interconnect system. The locking ramp fastening type holds the mated pair against vibration, and the panel-mount snap-in feature lets you secure the housing to a chassis or bulkhead without hardware.
Termination and Mating — Contacts Ordered Separately
This housing accepts crimp male pins (the 5559-series terminal) that are ordered separately — the listing explicitly notes contacts not included. The crimp termination is field-serviceable.