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Capacitor code 150. I know only 15, 151, 152, 153, etc... - ceramic.

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Garyl

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Hey
I am using capacitors for a very logn time but now I've stumbled upon something I don't understand.

I have a capacitor labaled "150".
What's the value of that?

I used to use https://www.electronics2000.co.uk/calc/capacitor-code-calculator.php
but I am confused....

150pF capacitor is usually labeled as 151.
15pF capacitor is usually labeled as 15.

So what is 150?

PS: there is an underscore under that 150.
 

Hi,

15[COLOR="#80000"]0[/COLOR]
Means 15 x 10^0 pF = 15 x 1 pF = 15pF

Similar to 151, 152...150pF, 1500pF...
I tried the calculator you referred to....it clearely gives 15pF.
So why are you confused?

Klaus
 
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    Garyl

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Another way of looking at three-digit codes is that the third digit stands for the number of zeroes following the first two digits.
151 means 15 followed by one zero = 150
150 means 15 followed by no zero = 15

Makes perfect sense if you think of it as the power of 10 but it seems kind of silly if you think of it as representing no zero as zero zero :smile: I can see how it could be confusing for someone who's not used to it. To make matters worse, I have seen some manufacturers use zero in the third digit as zero. Go figure.
 

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