Author Topic: Finding replacement part for a Zener diode  (Read 7213 times)

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Offline Svenski-79Topic starter

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Finding replacement part for a Zener diode
« on: January 28, 2024, 05:23:45 pm »
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

Offline Clear as mud

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Re: Finding replacement part for a Zener diode
« Reply #1 on: January 29, 2024, 02:25:44 am »
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.

Offline cosmicray

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Re: Finding replacement part for a Zener diode
« Reply #2 on: March 21, 2024, 10:18:10 pm »
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.
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