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Re: TO-220 mounting tab

 

Vesa,

If I understand correctly, you say the oyvind-aabling library is a good
example of having multiple variants of the same housing, which you don't
like. Right?

On Mon, Dec 29, 2014 at 3:39 AM, Vesa Solonen <vesa.solonen@xxxxxxxx> wrote:

> > On Fri, Dec 26, 2014 at 8:09 PM, Carl Poirier wrote:
> >
> >     I'd like to solve in the KLC the issue raised here
> >     <https://github.com/KiCad/kicad-library/pull/76>.
>
> There are sometimes reasons to separate connections to TO-220/247
> leadframes, but I think this information should be conveyed in design
> notes on schematic as it is so special.
>
> The current situation of multiple variants of same housing depending on
> a device is not too good regarding usability. Sometimes standards are
> here for a reason...
>
> Some examples how to:
>
> https://code.launchpad.net/~oyvind-aabling/kicad-newlib/mod
>
>
> http://bazaar.launchpad.net/~oyvind-aabling/kicad-newlib/mod/view/head:/modules/oaa_discret-transistor1.brd
>
>
> http://bazaar.launchpad.net/~oyvind-aabling/kicad-newlib/mod/view/head:/modules/oaa_discret-transistor2.brd
>
> Floating mechanical pads on isolated packages are no name as the
> connection is not dictated by package leadframe, but surrounding design.
> These libs are planned to be as general as possible without duplication,
> so one is supposed to do a board/project level edit of mechanical hole
> properties. To me this has been the most workable solution.
>
> -Vesa
>
>
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