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A: In a three-digit capacitor code, the first two digits represent the significant figures, and the third digit represents the multiplier. To determine the capacitance, combine the first two digits and multiply them by 10 raised to the power of the third digit. For example, a code of “104” translates to 10 x 10^4 pF = 10,000 pF or 10 nF.
5. Look for a + or - sign. If you see one of these next to a terminal, the capacitor is polarized. Make sure to connect the capacitor's + end to the positive side of the circuit, or the capacitor could eventually cause a short or even explode. [4] If there is no + or -, you can orient the capacitor either way.
Electrolytic capacitors are available in the range of 0.1 μF to 4700 μF. The base unit of capacitance is the farad (F). But this value is too large for circuits, therefore Aluminum electrolytic capacitors are mostly labeled with microfarad unit (µF). (1 µF, = 1 microfarad = 10-6 farads) Tolerance value.
In this video, I have discussed how to read and understand the ceramic capacitor value from the capacitor code with some capacitor code examples like 22 pf, ...
Ceramic disc capacitor codes usually consist of three numbers followed by a letter, and they are very easy to decode to determine the value. The example capacitor shown, the first two significant digits represent the first two digits of the actual value, which is 47. The third digit is the multiplier, which is ×1000.
In this video, we will discuss how to read and understand the ceramic capacitor value from the capacitor code with some capacitor code examples like 20 pf, 1...
For example, 103, 104, 105 etc. Let’s see how to read these values. Suppose the printed value on the ceramic capacitor is “103”. 103 = 10 x 103 = 10,000 pF (picofarad) Similarly, if the specials marking code on the ceramic capacitor is 105: 105 = 10 + 5 Zeros = 1,000,000 pF. = 1000 nF = 1 µF. Tolerance of Ceramic Capacitors.
About Ceramic Capacitor Codes. Ceramic capacitors are tiny! It’s difficult to read their values even with the code. Imagine if we had to shrink their complete specifications down and print them on the capacitor! We’d need a microscope to read them! This is why manufacturers started using a three-digit-code to mark ceramic capacitors.
In this episode of EFM we learn how to decode ceramic capacitor codes to know their capacitance value!
Our Resistor Kit pairs nicely with the Capacitor Kit. If you want to measure capacitor values, you can build the Capacitance Meter Kit. Harry Bissell's Cap FAQ is a very detailed guide to selecting capacitors. Our engineer Shawn gives a video demonstration of polarity and voltage ratings by Exploding Capacitors.