JST WPJ 2-Position Waterproof Plug, 5.00 mm Pitch
It carries a JIS C 0920 Grade Level 7 waterproof rating, meaning it withstands temporary immersion — suited for outdoor lighting, automotive under-hood, or industrial sensor harnesses where a standard unsealed connector would fail. The free-hanging inline mount means it terminates a cable end, not a PCB footprint.
Waterproofing and Environmental Rating
The JIS C 0920 Grade Level 7 rating is the key differentiator here. It's equivalent to IEC IP67 — the connector withstands immersion in 1 meter of water for 30 minutes when mated with the correct receptacle and the seal is intact. For a harness that sees road spray, pressure washing, or occasional submersion, this plug saves the cost of potting or overmolding.
No secondary TPA (terminal position assurance) is listed for this series, so verify full insertion by feel or with a pull test. The mating receptacle is the WPJ series 2-position housing, order code 02R-WPJV-2-RM or similar per the series drawing.
