Overview
The EXC470MX is an antenna made by TE Connectivity with 5 pins.
JLCPCB lists it (part C5700534).
Symbol
The library has no symbol for this part yet.
Footprint
The library has no footprint for this part yet.
Questions
Where is the EXC470MX datasheet?
TE Connectivity publishes it: the Datasheet link on this page opens it.
Where can I order the EXC470MX?
JLCPCB lists it as part C5700534, with 0 in stock; the sellers' links on this page open their listings.