Hi Victor-

You'd have to check the present spec from Murata. Historically, the overcoat on these parts was a ceramic and it would only change color if something really awful and immediately visually obvious occurred. I know that you can get certain grades of these parts that are somewhat flexible these days because of the historical problem of cracking the parts. Ceramic doesn't bend very well, so the engineering of these new parts is using a number of organic compounds. So, while I haven't worked with these new, more physically robust parts, I wouldn't be surprised if the overcoating were similar to those tantalum parts Joyce is mentioning.

Wayne

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Thursday, August 25, 2016 12:00 PM
To: [log in to unmask]
Subject: [TN] MuRata, ceramic caps, 10micro F,, X5R, 25V, 1206

Fellow TechNetters:

   During the service life of a ceramic capacitor will the ceramic material color change in color due to normal usage?   How about if the circuit draws too much current, overheating condition/leakage.

Victor,