How to identify a capacitor?

Thus, for such concise markings many different types of schemes or solutions are adopted. The value of the capacitor is indicated in “Picofarads”. Some of the marking figures which can be observed are 10n which denotes that the capacitor is of 10nF. In a similar way, 0.51nF is indicated by the marking n51.

How do you read a large capacitor?

To read a large capacitor, first find the capacitance value, which will be a number or a number range most commonly followed by µF, M, or FD. Then look for a tolerance value, typically listed as a percentage. Next, check the voltage rating, which is usually listed as a number followed by the letters V, VDC, VDCW, or WV.

What factors should be considered when choosing a capacitor?

Apart from the suitability of different capacitors for specific applications, other important factors that may need to consider include the following: Tolerance – It must be checked if the working of the circuit depends on precision capacitance. A capacitor with the lowest tolerance should be used if it requires narrow capacitance.

What is a two digit code for a capacitor?

If it is a two-digit code, it is the direct value of capacitance in Picofarads, and if it is a three-digit code, the first two digits indicate a number (E-6 Series), and the third digit indicates a multiplier giving the final value of capacitance in Picofarads. A letter may be used to indicate the tolerance of the capacitor.

How do you measure a capacitor?

Know the units of measurement. The base unit of capacitance is the farad (F). This value is much too large for ordinary circuits, so household capacitors are labeled with one of the following units: 1 µF, uF, or mF = 1 microfarad = 10 -6 farads. (Careful — in other contexts, mF is the official abbreviation for millifarads, or 10 -3 farads.)

What is an example of a marking in a capacitor?

An example of the marking which can be typically observed in a capacitor is “22µF 50V”. Here, 22µF is the value of the capacitor while 50V denotes the working voltage. The marking of a bar is used to denote the polarity of the capacitor indicating the negative terminal.