The TE Connectivity AMPSEAL 16 1717934-1 is a 12-position, dual-row receptacle housing on a 4.50mm pitch, designed for sealed wire-to-wire interconnects in harsh environments. It carries an IP67 rating when mated with the correct plug half, meaning it handles dust immersion and temporary water submersion — typical for underhood automotive, off-road equipment, or outdoor industrial harnesses. The housing includes a Terminal Position Assurance (TPA) feature and a locking ramp fastening system, both of which lock the terminals and the mating pair against vibration loosening.
Mating Half and Terminal Reality
The 4.50mm pitch and dual-row, 12-position layout are the matching parameters — confirm the plug half has the same position count and row configuration. The crimp termination means the shop needs the applicator tooling for the AMPSEAL 16 terminal family — if you already run TE crimp presses, the changeover is straightforward; if not, factor the tooling into the build cost.
Where the IP67 and TPA Matter
The IP67 seal means this connector is suited for harness runs that see direct spray, washdown cycles, or occasional submersion — think engine sensors, transmission connectors, or exterior lighting harnesses on heavy equipment. The TPA (Terminal Position Assurance) is a secondary lock that seats behind the crimp terminals after insertion, confirming each terminal is fully home and preventing back-out under vibration. For a harness builder, the TPA adds an assembly step but eliminates the field failure of a terminal that wasn't fully seated.