Component Identification.

Thread Starter

R!f@@

Joined Apr 2, 2009
9,918
I attached a picture of a component that I never came across before.
Any one care to identify this.Unk.jpg
 

GopherT

Joined Nov 23, 2012
8,009
I would guess it is a 100nF cap with an "S" tolerance factor (+/-22%), just a guess. What does your capacitance meter say?

image.jpg
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,918
I did not check with DMM.
Will do tomorrow and post back

PS. Will you believe if I say that I have been using this component for like 20 years. o_O
Unknown to me that it is there doing what it does in my PSU :p
 

benta

Joined Dec 7, 2015
101
It's a 100 nF ceramic multilayer decoupling cap.
I remember these from the 80/90's, manufacturer was Siemens in those days (I think).
The S is the voltage, in this case probably 50 V.

Benta.
 

grahamed

Joined Jul 23, 2012
100
LOL. 100 nano Siemens would be 10Mohm I think, which would be easy to check, unless it is a leaky 100nF cap.....I am voting for cap - leaky or not.
 

ian field

Joined Oct 27, 2012
6,536
LOL. 100 nano Siemens would be 10Mohm I think, which would be easy to check, unless it is a leaky 100nF cap.....I am voting for cap - leaky or not.
The ones of those I've seen plenty of were all capacitors.

100n is sufficient to give a kick on high Ohms range on an analogue meter.

Some types of continuity testers with LED indicator will blink if you test a cap with them.
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,918
Yaaaay!

It's a cap.
Meter shows 97.5nF.
Continuity shows nothing.

Can I replace it with a monolithic ceramic ?
I'm going to remake the old PSU. It's like more than 20 years. But a very reliable one.

PSU.jpg
 
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