What This Housing Is and Where It Goes
The TE Connectivity 171822-7 is a 7-position, single-row receptacle housing from the EI series, designed for wire-to-board or wire-to-wire interconnect in harness assemblies. It uses a 2.50mm pitch and accepts female socket contacts that are crimped onto discrete wires, then inserted into the housing cavities. The natural polyamide 6/6 (PA66) body is rated for continuous operation from -20°C to 95°C, making it suitable for interior automotive, appliance, and industrial control cabinet wiring where moderate temperature and vibration are expected.
Critical Procurement Note — Contacts Are Separate
This housing ships without contacts — the listing explicitly notes "Contacts Not Included". Order the matching TE female crimp socket terminals separately for the wire gauge your harness requires.
Mating Half and Termination
As a receptacle housing, the 171822-7 mates with the corresponding EI series header (male pin header, same 2.50mm pitch and 7 circuits). Termination is crimp-style: strip the wire, crimp the female socket contact with the correct tooling, insert it into the housing cavity until the lance locks, and pull-test to confirm retention. The free-hanging (in-line) mounting means this housing is used as a plug on a cable assembly, not soldered to a board.