Capacitor identification for Palladium or any other PMs estimate

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ahmadbayoumi

Well-known member
Joined
Sep 21, 2013
Messages
196
Location
Egypt
Hello ALL,

Any idea about any PMs inside this capacitor .. what they are ? and how much is the estimate if there is any any ?

CM1L.jpeg
 
Incernate , grind it , add dilute nitric , heat the solution, filter it test with DMG ,
It can be done with that two pieces

These look more like tantalum to me any way test matters
Thanks
 
Tanlalum have to have polarity + sign ingraved in pcb.
New generation of THT multilayer capacitor. BMC....maybe no Pd at all,if them are highly magnetic.
 
Thanks for your replies :)

johnny309 said:
Tanlalum have to have polarity + sign ingraved in pcb.
New generation of THT multilayer capacitor. BMC....maybe no Pd at all,if them are highly magnetic.

So, do you mean that if they are magnetic, then no Pd while if NO then they should contain Pd ?
 
It may be a polyswitch. I've seen some polyswitch (also known as resettable fuse) in a very similar shape and color. Also on a similar board next to a nickel spark gap, as in your pic.

If you pry the yellow coating off, you will be able to recognize it by look. An MLCC will be solid, ceramic, and if you hit it, maybe you can break it. A polyswitch will be soft, almost like plastic, with a few metal foils where the legs are welded onto it.
 
Cut one piece legs with pliers....cut this piece with pliers in 4 pieces....add HCl and NaOCl(bleach).....wait for a day or two....If you have an salt....is AgCl....and now is positive Pd in your solution. If not solution will turn green-blue....copper and nickel.....BMC.
 
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