Sealed 40-Position Plug Housing for Harsh Environments
The TE Connectivity 1438618-1 is a 40-position plug housing from a sealed connector family, built for wire-to-wire or wire-to-panel interconnects where moisture and vibration are present. It uses a 2.54mm pitch across four rows, with a 4.24mm row spacing, and accepts female socket contacts that are crimped onto the wire. The housing is free-hanging (in-line), so it sits in the middle of a harness rather than on a board, and the lever-lock fastening gives a positive mechanical latch that resists accidental unmating. The IP67 rating means the mated assembly is dust-tight and protected against temporary immersion in water — a practical requirement for underhood automotive, agricultural equipment, or outdoor industrial controls. The Terminal Position Assurance (TPA) feature is a secondary lock that confirms each crimp contact is fully seated in the housing cavity; without it, a partially inserted contact can pass a pull test but fail under thermal cycling or vibration. The black colour is standard for this series, and the housing is ROHS3 compliant.
What You Need to Order Separately
The listing explicitly notes that contacts are not included. This is a housing-only part — you must order the matching female crimp socket terminals separately. The contact termination is crimp, so you will also need the appropriate crimp tooling for the wire gauge the contacts accept. Confirm the contact part number from the TE application drawing before committing the BOM line.
Mating and Compatibility
This plug housing mates with the corresponding TE header or receptacle in the same sealed connector family. The 2.54mm pitch and 4-row layout are fixed — the mating half must match the 40-position count and the lever-lock fastening interface. The IP67 seal is only effective when the plug is mated with its counterpart; the seal is at the interface, not on the housing alone.