Overview
The ETRAB4503 is an antenna made by TE Connectivity with 5 pins.
JLCPCB lists it (part C5736770).
Symbol
The library has no symbol for this part yet.
Footprint
The library has no footprint for this part yet.
Questions
Where is the ETRAB4503 datasheet?
TE Connectivity publishes it: the Datasheet link on this page opens it.
Where can I order the ETRAB4503?
JLCPCB lists it as part C5736770, with 0 in stock; the sellers' links on this page open their listings.