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R1206 or M1206

autodeskguest

Greetings,

I'm unsure of which land pattern to use for a 1206 resistor. In the Eagle

rcl libraries, R1206 and M1206 are listed. The M1206 land pattern pads are a

tad bigger than the R1206 land pattern pads.

 

Which should I use?

 

 

 

  • Biff wrote:

    Greetings,

    I'm unsure of which land pattern to use for a 1206 resistor. In the Eagle

    rcl libraries, R1206 and M1206 are listed. The M1206 land pattern pads are a

    tad bigger than the R1206 land pattern pads.

     

    Which should I use?

     

     

    There is no simple answer to this.  The pad pattern is process related

    and that is why there are so many duplicates in the parts lists.  What

    works well for hand soldering may cause tomb stoning in a reflow oven.

    You must decide for yourself once you have an understanding of how the

    part is to be soldered in production.

     

    HTH

    BrianT

     

  •  

    Thanks for the tip BrianT. I appreciate your input!