0Ω Resistors, Tolerances, and Materials...

rsjsouza

Joined Apr 21, 2014
383
The one I measured was a "carbon film" 0Ω jumper (one black band) and it is way out of spec! I measured 17mΩ and that'a way more than 5%!
Are those zero ohm resistors' tolerance shown in percentages? I may be wrong, but given the nominal value is zero that would violate the eleventh commandment: "You shall not divide by zero".
\[ Tolerance = \frac{Value_{nominal} - Value_{measured}}{Value_{nominal}} \times 100 \]

Shouldn't these tolerances instead be shown as a ± or ppm values?
 
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