brunofunchas
Full Member level 3
Hi,
I came across a faulty Zener diode in a SMPS. On the same board I saw one Zener, with the same colour code. A reverse bias it, with my Fluke 289, I thought that with was a 2Volt Zener since I saw on the meter 2V in diode mode.
Wrong! The multimeter does not tell us the reverse voltage of the zener!
I have made this mistake an hope that you do not make the same mistake that I did!
Regards,
Bruno
I came across a faulty Zener diode in a SMPS. On the same board I saw one Zener, with the same colour code. A reverse bias it, with my Fluke 289, I thought that with was a 2Volt Zener since I saw on the meter 2V in diode mode.
Wrong! The multimeter does not tell us the reverse voltage of the zener!
I have made this mistake an hope that you do not make the same mistake that I did!
Regards,
Bruno