On Sep 21, 2014, at 6:31 PM, Noel Chiappa <jnc at
mercury.lcs.mit.edu> wrote:
I
can't tell its value, the markings are 224 E5Z on one side and 038
ASF on the other side.
.. can anyone tell me what value/spec the capacitor has?
Err, was that maybe "Z5E"? I have found this page:
http://wiki.xtronics.com/index.php/Capacitor_Codes
very helpful in deciphering capacitor markings.
That address doesn?t work for me. Z5E sounds like a ceramic capacitor.
The usual interpretation of 3-digit codes is exactly like the 3 colored
stripes: read it as scientific notation. So 224 would be 22e4, or 220k.
Capacitors are marked in pF so that would be an 0.22 uF capacitor.
Very plausible for a ceramic bypass capacitor, which is what Z5E is if I
remember right. For a tantalum capacitor, that would be surprisingly
low.
They definitely made 0.22uF tantalum parts. I have some in my parts bins.
They aren't very common though (but neither are 0.22uF electrolytics). A
photo of the original part would definitely help determine if it is a
tantalum or some sort of ceramic. The only thing I'm really finding with a
search for E5Z is a 100V rated monolithic epoxy dipped ceramic capacitor.