Zener diodes wattage

Attilio · Post by **Attilio** » Mon 04/14/03 12:20 pm

Hi all!
If I want to reduce my B+ using a Zener diode on the ground tap of PT, what wattage should be the diode? Is 20 watt enough for a 30V drop?
Thank you.
Bye

Attilio · Post by **Attilio** » Mon 04/14/03 4:05 pm

Connect that zener between the HT center tap and ground, reverse-biased. The power disspation rating should be at least 150ma x the zener voltage.

Hi, I read this in another thread, is it true?
My PT erogates 150mA @ 300V, and I want a voltage drop of 30V. It makes 0.15A * 30V, is it correct? It makes 4,5W. I found a 20W 30V zener diode, do you think it is enough?
Thank you.
Bye!

Attilio · Post by **Attilio** » Mon 04/14/03 4:20 pm

PaulRuby wrote:20W is plenty!

Thank you very much!
Tomorrow I will buy it and try it, then I'll make you know.
Thank you again.
Bye!

Attilio · Post by **Attilio** » Tue 04/15/03 4:56 pm

Go here:
http://www.18watt.com/modules.php?name= ... =1103#1103
Thanks
Bye

Donations

Links

Welcome

Zener diodes wattage

Zener diodes wattage