Overview
The EXC450SM is an antenna made by TE Connectivity with 5 pins. 1.5 460MHz 50W Rubber Ducky Antenna - Antennas ROHS.
JLCPCB lists it (part C6946485).
Symbol
The library has no symbol for this part yet.
Footprint
The library has no footprint for this part yet.
Questions
Where is the EXC450SM datasheet?
TE Connectivity publishes it: the Datasheet link on this page opens it.
Where can I order the EXC450SM?
JLCPCB lists it as part C6946485, with 0 in stock; the sellers' links on this page open their listings.