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Community PCB Design & IC Packaging (Allegro X) Allegro X Capture CIS BOM Variants having different components

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BOM Variants having different components

KD202502275710
KD202502275710 1 month ago

Is it possible to create BOM variants in OrCAD CIS that would have different components (eg: a resistor instead of a capacitor) at the same positions?

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  • Jeet
    0 Jeet 1 month ago

    Currently, this functionality is not available in OrCAD Capture CIS, an enhancement request is  there to add this functionality.

    Also, Which Version of OrCAD Capture CIS you are using ?

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  • KD202502275710
    0 KD202502275710 1 month ago in reply to Jeet

    OK understood. Thank you.

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  • Robert Finley
    0 Robert Finley 1 month ago

    Common in RF designs.  At the beginning, we don't know if that part needs to be a cap or an inductor, and it's initially a zero-ohm resistor.

    If the part starts out as an ambiguous no-load(usually a shunt to ground), have a generic symbol:  open rectangle). 

    We accept that we might have a capacitor with a value of nano-henries.  We're focused on the variant driving the correct MPN to the variant BOM.

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  • excellon1
    0 excellon1 1 month ago

    It can be done.

    The thing is the parts (Footprints) have to exist on the board and also in the schematic  before a variant is done.

    Basically what you can do is parallel components on the board first. For example you could have 2 parallel parts, C1 & R1 on both the Schematic & PCB. Then depending on the build option you could do a variant so as one of the parts is not installed on the bom and the board.

    Lastly Over on the board in Orcad/Allegro you can also create an assembly drawing that is based on the variant from capture. Go to Manufacture > Variants > create assembly drawing to do this.

    Best regards.

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