[Amps] Bias Zener Diodes In Parallel ?

[Steve Katz]

> >
> Henry Radio Co uses fwd bias diodes to set fil-cathode bias in it's 
> amplifiers.
> Is there a zener made that can take a 400A glitch?
> 
> //Actually, there certainly are such zeners, I use them all the time.
> Most DO-5 stud-mount (50W nominal) devices have a 3000Wpk rating.  At,
> say, 10V, this would be 300Apk.  And they do handle it.  Their junction
> area is typically .0625 square inches, as compared with the .008 square
> inches of a 5W axial device.  That 78:1 change in junction size represents
> about a 78:1 change in peak current rating.
> 
> -WB2WIK/6