Capacitors Codes

[EDY2]

Hi
Does anyone know a good tutorial or something else with explanation of capacitor codes?
I have a bunch of them but can figure out their values, like these:
F 403Z
F 203
104
2A104K
2A472K
etc.

It's kinda confuzing

 

[mixos1]

Here is a great article about how to read capacitor codes...

http://xtronics.com/kits/ccode.htm

 

[EDY2]

Tankx Mike
But help me out just litle more more
As I figured out the capacitor marked 2A472K should have value +45 deg C +1% and 4,700 pF +-/10%

Some may think I'm stupid but I just want to be sure I figured it out just right and what a better way of doing it than consulting someone who knows it better.
Cheers ;D

 

[mixos1]

You are right EDY !!

 

[EDY2]

;D
Mike. Youre the best.

 

[steven2]

i hope this helps. ceramic capacitor marked 104k, 63,
and under it, y5p 104=100,000pf=100nf=0.1uf k= +- 10% tollerance. 63 is for 63 volts. y= - 30 degrees celcious, p= +- 10% stability.

ceramic capacitors, with non -linear tempiture coeficients, sometimes use a 3 digit code to indicate there operating tempiture and there stability over that range.

the first character like y - 30 degree cellcious. second character 7 thats +125 degree celcious 3rd character p is +/- 10per cent stability. from steven

 

[FireFly3]

Thanks from me also, everyone.

Now, if I just had the schematic and PCB layout for the Capacitor Wizard listed at the bottom of the link that mixos gave...

http://xtronics.com/capacitor-wizard.htm

Anyone have the plans for something similar?

 

[FireFly3]

Not sure if anyone cares about this but I did some digging and found another ESR capacitor meter. It's cheaper than the "Wizard" and has a digital display:

http://members.ozemail.com.au/~bobpar/esrmeter.htm

It's available in kit form or preassembled. Testing caps in-circuit sounds like a great idea. Anyone tried this meter? Comments anyone?

 

[Yevgenip]

usualy, capasitors with a three digit code are most common.
the first two digits specify a number and the third is how many zeros you need to add after it. the value is in pF.
for example, if you have a capacitor with the code 104, its value is
10 0000 pF.
Correct me if I'm wrong.