Please help with zener-diode identification

• Please help with zener-diode identification
  Posted by jhdoe on 20 Aug, 2021 00:29
• Hi folks,
  I have an issue with blown zener-diode, here is the photo (next to the red frame you can see intact diode):
  
  Label says it is UF00. I've tried to google for SOD-323F package diodes with UF00 text and found only BZX84J-C4V3 or CZRF7V5B-HF (http://www.s-manuals.com/smd/uf). However I'm not completely sure about exact one.
  Intact diode has 3.5V on it when device is powered on. I assume it is related to the USB input, because it is located right next to the USB Type-B port.
  Are there any possible replacement options?
  
  Many thanks
• #1 Reply
  Posted by bob91343 on 20 Aug, 2021 04:36
• It's UF0D.  But casual observation shows that the two diodes are the same and in antiparallel.  So measure the good one and replace the blown with a similar rating.
• #2 Reply
  Posted by gamalot on 20 Aug, 2021 14:39
• They are switching diodes not zener diodes.
  
  https://datasheet.lcsc.com/lcsc/1810010114_KEC-Semicon-KDS160-RTK-P_C69757.pdf
  
  
• #3 Reply
  Posted by jhdoe on 21 Aug, 2021 00:02
• Thanks a lot! I was able to find retailer on ebay (https://www.ebay.com/itm/333603716254) and order new parts!