Anyone know what this component is?

[John Lyons]

It looks like a surface mount part mounted inside a glass capsule.
It's marked 104M 50v 8330
Some others were marked with a J after three numbers as some caps are.



The 104 and 50v would seem to mean capacitor but who knows...

john

[DougH]

I think it's a cap. I have some .68u's that look like that.

[John Lyons]

Ok, then that confirms my suspicion.
Any idea what composition it may be or what this type is called?
I'm curious about the reason for the glass package. Maybe stability to environment?

John

[Gus]

I would guess ceramic .1uf 50V

I think you are right John is does look like a smd ceramic in a glass tube

[BRingoC]

That looks similar to a couple of the caps inside the doppelganger, or so it would seem to me, as I have only seen the pics posted on the forum.

[boogietube]

I think that it's a cap. I've got very similar looking ones that I bought surplus. My cap meter registers them as having the value that was on the package.
Sean

[kurtlives]

I would guess ceramic .1uf 50V

I think you are right John is does look like a smd ceramic in a glass tube

Thats what I thought.

Maybe a germ diode wiht a cap inside.

[Pedal love]

It looks like they might be a polystyrene caps.

[Paul Perry (Frostwave)]

I don't think it is polystyrene. It's too small.
I think it's an ordinary ceramic surface mount cap, that's been encapsulated in the same kind of machine that makes through-hole diodes from the original semiconductor dice.
It's kind of a good sign, if it means there are people busy turning smt into convenient packages !

[George Giblet]

I'm with Paul it's some kind of multilayer chip or monolythic ceramic capacitor.   I remember seeing these in the late 70's ad I still have a few around.

There is the glass types you have which were in the tens to hundreds of nF.  BTW  104M = 100nF 20%

There was also axial caps that looked like resistors.  The bigger ones like

http://www.robotroom.com/BigTrak/Capacitor.jpg

and the smaller ones like this,

http://commons.wikimedia.org/wiki/Image:Axial_capacitors_color_code.jpg

Then there were non-striped ones that looked like this,

http://www.iezone.com/exporter/product/135Multilayer%20Capacitor%20Axial%20Type.jpg

[John Lyons]

Thanks for the replys guys!
Those striped caps are interesting. Guess we know why the stopped making those!

John