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Basic Electronic

Capacitor Colour Code

 

Marking and coding
 

Capacitors have two specifications of importance, one is value of capacitance and other is voltage rating. Voltage rating is the maximum value of DC voltage that can be applied across the device. Any voltage higher than this rating is capable of destroying the dielectric rnaterial resulting in failure of capacitor. Capacitor values are marked on the body of the capacitor.

 

In ceramic capacitor the capacitance value is indicated like "104". In this the value is read like 10 x 104 pF. Sometimes a letter such as "R” may be used in place of decimal point indicating the value such as 3R3 which is equivalent to 3.3 pF.

 

 

COLOUR CODING OF CAPACITORS

 

The system of colour coding is similar to the colour code system of resistors, only difference is the addition of a temperature coefficient. Some times working voltage is indicated by colour code.

There are different methods of colour code as illustrated.

 

Color

Digit

Multiplier

T olerance

Class of

 

 

 

 

Charaeteristics

Black

0

1

20%

A

Brown

1

10

1%

B

Red

2

100

2%

C

Orange

3

1000

3%

D

Yellow

4

10000

 

E

G reen

5

 

5%

F

Blue

6

 

 

 

Violet

7

 

 

 

Grey

8

 

 

 

White

9

 

 

 

 

 

 Capacitor Color Code

Keywords : Capacitor, Capacitence, Color, Colour, Code, Marking, Farad, Micro, Resistence, Resistor, Active, Passive, Components, Electronic, Electric
Writer : delon  |
25 Apr 2006 Tue   
|  9.353 Views
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