Varactors Packaging and its Parasitic Values

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1

Hi All,

I wonder what is the effect of packaging on series resistance of a varactor diode?
Does it very or not? For instance, a comparison of E28 with 0805-02 package?
As far as i assume, i think the parasitic inductance and capacitance does vary with packaging and i can see this in datasheets that both packages have different parasitic values but i am not sure about resistance. I think the resistance may remain same.

Looking forward to the answers.

2

The series resistance of such devices tends to be low to begin with, and usually does not change much in relation to minor package differences.

Parasitic reactances are created as a direct result of package geometry, and therefore can be expected to change as package geometry does.

Signal Integrity Simplified by Eric Bogatin is a book that I recommend to those who are interested in these topics.