Zener Diodes: How to match them?

beatbelieve · Mar 27, 2009

Hi, this is my first post in this amazing forum.
As I have to match 4 Zener diodes, I'd like to know if there is someone who knows a simple way to do it.
Thank you in advance.

gyraf · Mar 27, 2009

Feed them a current the size where you want them matched - e.g. 1 or 10mA, and measure voltage across them?

Jakob E.

beatbelieve · Mar 27, 2009

Thank you Jacob
Do you think it is sufficient?
(I need to match 4 diodes to use themin a compressor)

Fablab · Mar 27, 2009

Interesting questions ...
I have made some search on the web but I have found only some solutions to understand the working voltage (when nothing is written on the diode)

Igor · Mar 27, 2009

Hmmm...don't tell me what zeners

I will guess by myself. Maybe.....5.1V 1/4W ones?

Take 12V stabilized power supply, piece of breadboard, IC socket, two resistors say 10k and 1k, and spdt switch.
Connect voltmeter across zener, measure voltage with 10k in series to zener, switch 10k to 1k, measure, write this down, next....
Actually, you don't need to match 4, but 2 pairs.

beatbelieve · Mar 27, 2009

Thank you Igor

Zener Diodes: How to match them?

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Zener Diodes: How to match them?

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