mi sembra che sia questo XC6223:
https://alltransistors.com/pdfview-s.php?doc=xc6223&dire=21
per trovare le corrispondenze dei marking code SMD, su Android trovo utile
queste 2 app:
https://play.google.com/store/apps/details?id=com.zedevstuds.smd_finder
https://play.google.com/store/apps/details?id=componentspinout.ammsoft.componentspinout
oppure questi siti:
https://play.google.com/store/apps/details?id=componentspinout.ammsoft.componentspinout
https://www.s-manuals.com/smd
https://smd.yooneed.one/
https://alltransistors.com/smd-search.php
https://www.hotenda.com/marking-code/search/index.html
https://embedeo.org/smd_codes/
https://english.electronica-pt.com/smd
http://www.dl7avf.info/charts/smdcode/index.html#TOC