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No, and no.Your best bet is to measure it with an ESR meter and find an equivalent.
Kemet 3900pF. Package size, voltage and material/tempco unknown (although it obviously isn't one of the types printing is not available on).page 504 http://www.kemet.com/Lists/ProductCatalog/Attachments/364/KEM_CC101_COMM_SMD.pdfTim
wow, that smd ceramic capacitor actually has a marking... I think it is one of the rarest thing in the world.
Oops, I meant LCR meter earlier, not ESR meter...I'm amazed it was identified, good job.
Quote from: NANDBlog on April 13, 2014, 10:24:31 pmwow, that smd ceramic capacitor actually has a marking... I think it is one of the rarest thing in the world.Now if only they thought to mark it "3n9" or "392"...
That colour (light grey) dielectric is usually NPO or COG. The brown colour is normally X7R.I'm sure it's NPO/COG for that reason.
Quote from: Richard Head on April 14, 2014, 08:21:44 amThat colour (light grey) dielectric is usually NPO or COG. The brown colour is normally X7R.I'm sure it's NPO/COG for that reason.Probably you're right, that's what I thought initially, but according to the datasheet: "Laser marking option is not available on: C0G, Ultra Stable X8R, ...".However, at the moment I prefer to believe that they are COG/NPO. I discard polyphenylene sulfide (PPS). It's rare, right?
If you have an access to more or less decent LCR meter, you can easily distinguish between NP0 and X7R types of ceramic capacitors. NP0 ones have Q around 1000 or more, when X5R and worse types have Q around 100. I have seen NP0 capacitors that have the same brown color as X7R, though they tend to be white grey or pinkish