
Walkie talkie
andykarpov/walkie-talkie
A custom pcb for the original project https://vrtp.ru/index.php?act=categories&CODE=article&article=3351
Renesas ElectronicsExtended
SOD-523 New Arrivals ROHS
The HVC131 is an uncategorised made by Renesas Electronics in a SOD-523 package with 2 pins. SOD-523 New Arrivals ROHS.
PCBKit's library has its footprint (Diode_SMD:D_SOD-523, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7420417). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.

andykarpov/walkie-talkie
A custom pcb for the original project https://vrtp.ru/index.php?act=categories&CODE=article&article=3351
Yes. the footprint Diode_SMD:D_SOD-523, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOD-523, with 2 pins. Its footprint is drawn on this page.
JLCPCB lists it as part C7420417, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the ESD5Z3.3C by baocheng, the ESD5Z5.0CT1G by ElecSuper, the B5819WT-1A by GOODWORK and the ESD5Z3V3 by GOODWORK. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.