[sdiy] Mystery Caps

[Wayne Dubois]

We used to see these used alot as the usual bypass cap (.1uf, marked '104').
Our guess was that the form-factor made it easier on the pick and place
mechanisms for auto-insertion.

I still get a giggle when I see a 'zero ohm resistor' which, I presume, is
used for exactly the same reason.  (These will have the same axial pkg as a
standard %5 resistor, but with a single black band in the middle.)

 - w
----- Original Message -----
From: "Neil Johnson" <nej22 at hermes.cam.ac.uk>
To: "Michael Ruberto" <frankentron at hotmail.com>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, March 16, 2003 10:16 AM
Subject: Re: [sdiy] Mystery Caps


>
> > not with a value .47uf.
>
> Ah, right :-)
>
> > >But my guess is that they could be glass-encapsulted multi-layer
ceramic
> > >capacitors.  The "50V"  rating sounds like they might be these.
> >
> > hmmm ceramic, so I guess I can assume at least 10% tolerance? is there
any
> > benefit to glass encapsulation? good humidity resistance?
>
> They look nice?  Seriously though, certainly quite resistant to moisture,
> as long as the glass-metal seals are good.
>
> Neil
>
> --
> Neil Johnson :: Computer Laboratory :: University of Cambridge ::
> http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
> ----  IEE Cambridge Branch: http://www.iee-cambridge.org.uk  ----
>
>