How to Read a capacitor value

Reading capacitor values are not as difficult as reading the value on the resistor, but How to Read the value of the capacitor is also required us to know to understand the characteristics and specifications when there is damage to the circuit.

In a large capacitor, the capacitance is generally written with sheer numbers. Complete with a maximum voltage value and polarity. For example, the capacitor capacitance elco clearly written for 22uF/25v.

Ceramic capacitors are tiny and small physical size is usually only read 2 (two) or 3 (three) numbers only. If there are only two digits unit is pF (pico farads). For example, a capacitor that reads two digits 47, then the capacitance is 47 pF capacitor. If there are 3 digits, the first and second digits indicate the nominal value, while the 3rd digit is multiplier. For example, as the picture shows the 154 means in addition to the first and second figure shows the value that is 15 and the three digit number 4 which means the multiplier = 10000, ceramic capacitor value is 15 × 10000 = 150 000 pF = 150 nF = 0.15 UF, the following is a table multiplier capacitor value:

Angka ke-3	Pengali/Multiplier (dua digit pertama memberi Anda nilai di Pico-Farads)
0	1
1	10
2	100
3	1,000
4	10,000
5	100,000
6 not used
7 not used
8	.01
9	.1

In some species there is also the use of capacitor tolerances usually use code letter:

Simbol huruf	Toleransi
D	+/- 0.5 pF
F	+/- 1%
G	+/- 2%
H	+/- 3%
J	+/- 5%
K	+/- 10%
M	+/- 20%
P	+100% ,-0%
Z	+80%, -20%

Multipliers in accordance with nominal rates, respectively 1 = 10, 2 = 100, 3 = 1.000, 4 = 10,000 and so on. For example on ceramic capacitors written 104, the capacitance is 10 x 10,000 = 100.000pF or = 100nF. Another example of such a written 222, meaning that the capacitance of the capacitor is 22 x 100 = 2200 pF = 2.2 nF.

Apart from the capacitance there are several other important characteristics that need attention. Normally the specification of these characteristics are presented by the manufacturer in the datasheet. Here are some important specifications.

Working voltage (working voltage)

Working voltage is the maximum allowable voltage so that the capacitor can still work well. The electro-mania may have had capacitors that exploded due to excess voltage. For example 10uF 25V capacitor, the voltage that can be given should not exceed 25 volts dc. Generally, polar capacitors work on DC voltage and non-polar capacitor works on AC voltage.

Working Temperature Capacitors

Values shown in Baan capacitor still meets the specifications if it works at the appropriate temperature. Manufacturers generally make capacitors capacitor maker which refers to the popular standard. There are 4 popular standard that is usually listed in the body such as the C0G capacitors (ultra-stable), X7R (stable) as well as Z5U and Y5V (general purpose).

In most of the TV series usually if there is damage to one value in the capacitor, the capacitor can be changed to a value greater than or at least close to the original value, but not all of capacitors can be replaced with substitute a different value, usually in the oscillator. Such as capacitors on Oscillator Power Supply which usually have 22-47uF value should be replaced by the value precisely to the original, because the value is, of course, affect the voltage output produced (an effect on labor supply oscillator). Similarly, articles on How to Read the value of the capacitor. Hopefully Helpful, See also the workings of the capacitor in the article How Capacitors Work