Calculation of resistors in series.
Calculates the resistance and global dispersible power of
two or more resistors in series, this configuration is normally used to
obtain not-standard ohmic values or high powers.
Insert the values of the resistors needed, leaving empty the others.
- The global value of the dispersible power refers to the nominal
(1/4 W = 0.25 W -- 1/2 W = 0.5 W etc.. ), obviously it is only a limit
value that you have to avoid to reach, especially with high ambient temperature.
This value directly influences the useful life of resistors.
- Nominal power dissipable by the resistors refers to 25 °C ambient,
with positioning in free air and functioning into tolerance guaranteed for x hours.
- To calculate resistors pack of higher number is necessary to proceed with
multi-step procedure: calculate the first group and store the values,
calculate the second and store the values, at the end insert the values of
the first and the second calculate to obtain the resistance and the global dissipable power.
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Apps for the resistances.