Home › Magazines › 2010 › March › Zener diode tester

Zener diode tester

Design Tip

Published in issue 399, March 2010

The instrument described here lets you check that zener diodes up to 200 V are working correctly, and it lets you find out the reverse breakdown voltage of an unknown zener diode (note that zener diodes are only called zeners from 2 V to 5.6 V — those above 5.6 V ought strictly speaking to be referred to as ‘avalanche diodes’, as the avalanche effect then becomes predominant).

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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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Zener diode tester

Design Tip

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