2 layers100 × 100 mm

The EX6 is a coaxial Connector made by Belden with 5 pins. - Coaxial Connectors (RF) ROHS.
JLCPCB lists it (part C7189668). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.
The library has no footprint for this part yet.

JLCPCB lists it as part C7189668, with 0 in stock; the sellers' links on this page open their listings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.