Enter the colour coding of the resistor below and the resistance, tolerance and temperature coefficient (when known) will be shown.
The electronic colour code is used to indicate the values or ratings of electronic components, very commonly for resistors, but also for capacitors, inductors, and others. The electronic colour code was developed in the early 1920s by the Radio Manufacturers Association. Colour bands were commonly use, especially on resistors, because they were easily printed on the, often tiny, components. They also had the advantage over text, because you can easily read them from all sides. In the table below the colour coding for resistors is shown.
|Brown||1||101||± 1%||100 ppm/K|
|Red||2||102||± 2%||50 ppm/K|
|Green||5||105||± 0.5%||20 ppm/K|
|Blue||6||106||± 0.25%||10 ppm/K|
|Violet||7||107||± 0.1%||5 ppm/K|
|Gray||8||108||± 0.05%||1 ppm/K|
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