The TE Connectivity 178602-2 is a 2-position receptacle housing from the Multi-Lock series, designed to accept tab-style crimp contacts. The 3.50mm pitch and single-row layout keep the footprint compact for a two-circuit power or signal interconnect. Panel mounting with a board latch gives you a positive lock to the PCB — the latch takes the shear load off the contacts in a vibration environment. The black PBT insulation is rated for -30°C to 105°C, covering most industrial cabinet and automotive interior applications.
Contacts Are a Separate Line Item
The housing ships empty — the note 'Contacts Not Included' is not a footnote, it is the procurement reality. You need to order the matching tab crimp terminals separately. The crimp termination means you terminate the wire first, then insert the contact into the housing. That gives you flexibility on wire gauge and plating grade (tin vs gold) depending on your current and cycle-life requirements, but it also means the BOM has two line items, not one.