[Lewis]

Hi,
This is probably one of those things that everybody in the world but me
knows, but I've got a couple of miniature axial caps, apparently made by
BC Components before Vishay bought them. They look like this:
http://rocky.digikey.com/WebLib/BC%2...12.7L,7.7D.jpg
and the Digikey catalog page is he
http://dkc3.digikey.com/PDF/T063/1168.pdf
So which end is positive? Stripe or no stripe?

I'm pretty sure they are polarized, and the stripe shows which end is
which, but I sure can't find anything that tells me what the stripe means!
Anybody know?
Thanks,
Lewis

[Phil Allison]

"Lewis"

This is probably one of those things that everybody in the world but me
knows, but I've got a couple of miniature axial caps, apparently made by
BC Components before Vishay bought them. They look like this:
http://rocky.digikey.com/WebLib/BC%2...12.7L,7.7D.jpg
and the Digikey catalog page is he
http://dkc3.digikey.com/PDF/T063/1168.pdf
So which end is positive? Stripe or no stripe?

I'm pretty sure they are polarized, and the stripe shows which end is
which, but I sure can't find anything that tells me what the stripe means!
Anybody know?


** My money would be on that black ring meaning negative.

The marking strip on axial and radial eelctro caps is always used to
indicate negative.

Why not just test one with a DC supply of say 3 or 4 volts ?

The way around that draws more current is the wrong one.




........ Phil

[Joseph Meditz]

Lewis wrote:
Hi,
This is probably one of those things that everybody in the world but me
knows, but I've got a couple of miniature axial caps, apparently made by
BC Components before Vishay bought them. They look like this:
http://rocky.digikey.com/WebLib/BC%2...12.7L,7.7D.jpg
and the Digikey catalog page is he
http://dkc3.digikey.com/PDF/T063/1168.pdf
So which end is positive? Stripe or no stripe?

I'm pretty sure they are polarized, and the stripe shows which end is
which, but I sure can't find anything that tells me what the stripe means!
Anybody know?
Thanks,
Lewis

http://www.vishay.com/docs/28332/138aml.pdf

[Eeyore]

Lewis wrote:

Hi,
This is probably one of those things that everybody in the world but me
knows, but I've got a couple of miniature axial caps, apparently made by
BC Components before Vishay bought them. They look like this:
http://rocky.digikey.com/WebLib/BC%2...12.7L,7.7D.jpg

I've never ever seen anything like that !!!!

How did you get them and why didn't you just find the data sheet ?

Graham

[Lewis]

Eeyore wrote:

Lewis wrote:

Hi,
This is probably one of those things that everybody in the world but me
knows, but I've got a couple of miniature axial caps, apparently made by
BC Components before Vishay bought them. They look like this:
http://rocky.digikey.com/WebLib/BC%2...12.7L,7.7D.jpg

I've never ever seen anything like that !!!!

How did you get them and why didn't you just find the data sheet ?

Graham

Graham,
I got them from Digi-Key about 5 or 6 years ago (or maybe more). Until
the post just above yours, I couldn't find a helpful data sheet. And
even that one doesn't exactly shout out what the band means.
Lewis

[Lewis]

Joseph Meditz wrote:


http://www.vishay.com/docs/28332/138aml.pdf


Thanks! There it is!

[robert casey]

Lewis wrote:
Joseph Meditz wrote:


http://www.vishay.com/docs/28332/138aml.pdf


Thanks! There it is!

In order to add confusion to the universe, tantalum caps are marked with
a band on the positive end.... :-)