[Milsurplus] Paralleing zeners....

Kenneth G. Gordon kgordon2006 at frontier.com
Thu Jul 28 12:53:36 EDT 2022


On 28 Jul 2022 at 19:50, robinson at tuberadio.com wrote:

> 
> Hi Dave,
> Putting the same wattage zeners is series is better.
> Regards
> Ray
> 
> > If one carefully matches forward conduction impedance,
> > can one parallel zeners to achieve higher dissipation?

Thank you, Ray. I had forgotten about that. Yes. If, say, you have a need for 120 V of 
regulation, using 2 ea 60 volt Zeners in series, or 3 ea 40 volt ones, etc, the dissipation 
ratings always add in the same manner as if they were paralleled, but without the hassle of 
trying to match them.

Ken W7EKB


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