Re: tantalum caps

--- In CAD_CAM_EDM_DRO@egroups.com, Jon Elson <jmelson@a...> wrote:

>
>
> Well, you have the choice of C0G for tightest temperature

coefficient,

> but only in small capacitance values, Z5U for a pretty low temp

coeff

> on larger values, and the Y5V for the greatest capacitance for

decoupling

> use only.
>
> Jon

Hi,

I agree. What amazed me though was the ceramic caps volumetric parity
with Ta caps.

Just for fun I measured the ERS for ceramic, tantalum and aluminum
caps. Each cap was 4.7uF/16V

1) Aluminum 1.285 ohms
2) Tantalum 0.410 ohms
3) Ceramic 0.015 ohms

The measured inductance of the ceramic cap was a fantastic 7nH.

Mariss