6.00 mm Pitch Power Triple Lock Plug Housing
The TE Connectivity 7-1971773-3 is a 3-position plug housing from the Power Triple Lock, High Temp series. The housing is black polyamide (PA) nylon, rated for continuous operation from -55°C to 105°C, so it lives comfortably in an engine bay or an industrial cabinet that sees seasonal temperature swings. The latch holder fastening locks the plug to the mating header with an audible click — no secondary retention hardware needed. This is a free-hanging (in-line) plug that terminates via crimp contacts — you bring your own terminals, because the housing ships empty. The female blade socket contact type accepts the matching crimp terminal, which you must order separately. The black colour is standard for the Power Triple Lock line and helps with visual identification on a crowded harness board.
What It Mates With and What You Still Need to Order
The 7-1971773-3 mates with the corresponding Power Triple Lock header (same 6.00 mm pitch, 3-position, single-row layout). The latch holder on the plug engages the header's locking ramp. Because the housing is a plug-only shell, you need to source the correct crimp terminals separately — the TE Power Triple Lock female blade socket contacts. The crimp tooling is standard for the series; no special dies required. The 6.00 mm pitch is the defining fit parameter — confirm your mating header and PCB footprint match this spacing before committing the BOM line. The 3-position count is common for single-phase power or a ground-and-two-signal run.