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How to create a SMD pushbutton device with 2 pins and 4 pads?

autodeskguest

Hi,

 

I'm relatively new to Eagle and HW design in general. I'm trying to create a

symbol and package for a SMD push button.

 

The pushbutton symbol has 2 pins, while the package has 4 smd pads. Pads 1

and 2 are electrically connected, and so are pads 3 and 4. When I create

the Eagle device, then the number of pins and pads obviously don't match.

 

Now I could:

 

1) leave 2 pads in the package unconnected.

2) generate a symbol with 4 pins and leave 2 pins unconnected in the

schematic.

 

How can I tell Eagle that two pads are always connected together? It would

be nice if I had only two pins but could route to any of the equivalent pads

and leave the other unconnected, but I cannot think of a way to accomplish

this. Is there a way to do so? Alternatively, what is the 'conventional'

way of handling this in Eagle?

 

Thanks,

Thomas

 

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  • Carsten wrote:

    the best way is to create a symbol with four pins and connect all of the

    to the package. If you assign the direction "pas" == passive to them, it

    will cause no DRC error if not all pins are connected. This way leaves you

    more choices.

     

    Hi Carsten,

     

    thanks for the quick reply. Your suggestion makes much sense, it gives the

    most freedom of choice. Now I know also what "pas" stands for. image

     

    Cheers

    Thomas

     

Reply

  • Carsten wrote:

    the best way is to create a symbol with four pins and connect all of the

    to the package. If you assign the direction "pas" == passive to them, it

    will cause no DRC error if not all pins are connected. This way leaves you

    more choices.

     

    Hi Carsten,

     

    thanks for the quick reply. Your suggestion makes much sense, it gives the

    most freedom of choice. Now I know also what "pas" stands for. image

     

    Cheers

    Thomas

     

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