Matthias Mansfeld wrote:
>
> Hello all,
>
> is there any standard for marking the polarity for THT components,
> like electrolytic components, if there is no silk screen with a
> thick, white kathode bar?
> I know ICs have often round pads, and number 1 is square, but how do
> you handle diodes, tantal caps etc.? a small + or - sign in the
> copper near the pin, or one pad (which one: 1, 2, +, - ?) square, the
> other round?
>
> Thanx, regards
> Matthias Mansfeld

I use a square pin on pin 1 of all polarized THT caps and
round on pin 2.
For diodes the same thing applies and we assign the
cathode to pin 1 and the anode is pin 2.

 Eric

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