![]() The color coding for resistors is an international standard that is defined in IEC 60062. Only resistors are addressed by this calculator. Electronic color codes are also used to rate capacitors, inductors, diodes, and other electronic components, but are most typically used for resistors. Length:Īn electronic color code is a code that is used to specify the ratings of certain electrical components, such as the resistance in Ohms of a resistor. This calculator assumes the conductor is round. Use the following to calculate the resistance of a conductor. ![]() Provide all of the resistance values in series separated by a comma "," and click the "Calculate" button to determine total resistance. If flagÄ 59 32 53 10 x Compute 10 (1/n)Ä 64 33 07 STO7 Initialize error=RÄ 65 31 22 00 GSB0 Compute R'Ä 71 31 22 00 GSB0 Compute R''Ä 79 32 71 Xâ¤Y? If R''this is smallest error yet, save R' and R''. To calculate the closest fit, using a series connection, the following algorithm is used: (R' and R'' are the trial resistances R= the desired resistance) Precision resistor values are 24 to the decade, thus n=24. 5% resistors come 12 to the decade, thus n=12. Each succeeding integer results in the next standard value. Where n = the number of standard resistance values per decade, and x = an integer. Standard resistance values are calculated from the following formula: Two standard resistors can be placed in series or parallel to approximate a desired resistance. This program finds two standard resistors that, when placed in either series or parallel, give the closest approximation to a desired non-standard resistance value.
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