The TE Connectivity 770040-1 is a 9-position plug housing from the Universal MATE-N-LOK II series, designed for free-hanging (in-line) wire-to-wire or wire-to-board harness assemblies. It is the rear section of a two-piece plug — mates with the corresponding Universal MATE-N-LOK II receptacle housing (sold separately) to form a complete connector pair. The housing accepts both male and female crimp contacts, so the same shell can serve as either the pin or socket side depending on the contact loaded. The 3-row layout with 0.250" (6.35mm) row spacing gives enough room for larger wire gauges typical of power distribution circuits.
Key Features That Drive the Fit
The latch lock fastening provides a positive audible click when mated, holding the pair together under vibration without a secondary locking mechanism. Contacts are not included with this housing — they must be ordered separately as crimp terminals (TE offers a range of Universal MATE-N-LOK II contacts for 20-14 AWG wire). The housing is RoHS compliant per.