In the OpenBCI Cyton board , the BOM contains a 3V zener diode (CZRQR52C3-HF), unfortunately the product has reached its end of life as per Mouser Electronics. can someone please point out a replacement I can use, it would be much appreciated , there is a lot of challenging stuff for me as a newbie regarding the programming side so any tips regarding the OpenBCI board would also be much appreciated.
Thank you
I'm not familiar with this application, but for most applications, you could substitute any zener diode with the same physical size and voltage rating. I see yours is a 0402 size, though, and I don't find any 3 volt 0402 zener diodes on Mouser. However, Digikey still has over 400 in stock of your part number.
Obtaining a zener in a conventional 0402, 0603, footprint appears to be a hard item to locate. A more common diode footprint, like SOD-323 seems to greatly improve your choices. One possibility is LM3Z3V3T1G, which is observed at LCSC at a very low price point.