Overview
The STP75N75F4 is a JFET made by STMicroelectronics with 5 pins. - JFETs ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:TO-220-3_L10.0-W4.5-P2.54-L-1, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C21757639).
Symbol
The library has no symbol for this part yet.
Footprint
Questions
Is there a KiCad symbol and footprint for the STP75N75F4?
Yes. the footprint EasyEDA_Cloud:TO-220-3_L10.0-W4.5-P2.54-L-1, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where can I order the STP75N75F4?
JLCPCB lists it as part C21757639, with 0 in stock; the sellers' links on this page open their listings.