Overview
The ETRA4903 is an antenna made by TE Connectivity with 5 pins.
JLCPCB lists it (part C5699707).
Symbol
The library has no symbol for this part yet.
Footprint
The library has no footprint for this part yet.
Questions
Where is the ETRA4903 datasheet?
TE Connectivity publishes it: the Datasheet link on this page opens it.
Where can I order the ETRA4903?
JLCPCB lists it as part C5699707, with 0 in stock; the sellers' links on this page open their listings.