In every capacitor, practically there will be small leakage current which is zero in ideal capacitors. The voltage (maximum) up to which the capacitor can withstand (before dielectric breakdown) is called as working voltage of the capacitor and capacitor voltage color code is represented in below table. The value is represented on the capacitor by using capacitor color code or directly. Additional fourth or color bands thereon represent various things for various types of capacitors. ![]() If we consider a four color band capacitor, then the first and second colors marked on the capacitor represents the value of the capacitor and the third color band represents the decimal multiplier in picofarads. In general, four or more than four colors or dots are used to mark capacitors. ![]() To understand about capacitor color code, primarily we must know various parameters of capacitors such as capacitor value, tolerance of capacitor, working voltage of the capacitor, and leakage current of the capacitor.
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