Question 5.51: A polyester capacitor is marked with the legend “0.22/20 250...
A polyester capacitor is marked with the legend “0.22/20 250_.” What are its value, tolerance and working voltage?
The value (0.22) is stated in μF and the tolerance (± 20 %) appears after the “/” character. The voltage rating (250) precedes the “_” character which indicates that the rating is for DC rather than AC. Hence the capacitor has a value, tolerance and working voltage of 0.22 μF, ± 20 %, 250 V DC, respectively.
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