A reference designator (RefDes) unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board. The reference designator usually consists of one or two letters followed by a number, e.g.
A reference designator (RefDes) unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board. The reference designator usually consists of one or two letters followed by a number, e.g.
Source: Wikipedia "Reference designator" · CC BY-SA 4.0
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