A zero-ohm link or zero-ohm resistor is a wire link used to
connect traces on a printed circuit board that is packaged in
the same format as a resistor. This format allows it to be
placed on the circuit board using same automated equipment used
to place other resistors instead of requiring a separate machine
to install a jumper or other wire. Zero-ohm resistors may be
packaged like cylindrical resistors, or like surface-mount
resistors. The resistance is only approximately zero; only a
maximum (typically 10–50 mΩ) is specified. Thus, a fractional
tolerance (as a percentage of the zero-ohm ideal value) would be
infinite and is not specified. An axial through-hole zero-ohm
resistor is generally marked with a single black band, the
symbol for 0 in the resistor color code. Surface-mount resistors
are generally marked with a single "0" or "000". |This
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