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Capacitor Identification

W

Wayne

Jan 1, 1970
0
NO..NO... Bi-Polar means TWO poles. Plus and a Negative.

You want NON-POLAR.

Regards,

Wayne
 
W

Wayne

Jan 1, 1970
0
Never-mind. I'm having a hard time dealing with my dead brain cells....
bi-polar is non-polar.

Wayne
 
C

Chretien

Jan 1, 1970
0
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says,
CAP BP RDL 47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions. It
doesn't have any of the [------] negative markings on it. I guess the thing
that I'm a little mystified about is that the leads are different length. eg
one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really a
Non Polarized Cap right ??

Regards.
 
R

Robert Monsen

Jan 1, 1970
0
Wayne said:
Never-mind. I'm having a hard time dealing with my dead brain cells....
bi-polar is non-polar.

Wayne

Perhaps it's a bipolar disorder? ;)
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says,
CAP BP RDL 47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions.
It

doesn't have any of the [------] negative markings on it. I guess the
thing

that I'm a little mystified about is that the leads are different length.
eg

one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really
a

Non Polarized Cap right ??

Regards.


--
Regards,
Robert Monsen

"Your Highness, I have no need of this hypothesis."
- Pierre Laplace (1749-1827), to Napoleon,
on why his works on celestial mechanics make no mention of God.
 
R

Rich Grise

Jan 1, 1970
0
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says, CAP BP RDL
47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions.
It doesn't have any of the [------] negative markings on it. I guess the
thing that I'm a little mystified about is that the leads are different
length. eg one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really
a Non Polarized Cap right ??

Regards.

One way to be absolutely sure would be to take a 24V power supply, and
charge it in either direction. Use a 1k ohm or so resistor, so you
don't make sparks or anything. If it doesn't blow up either direction,
it's probably nonpolar.

The only reason I could think of for two different lead lengths is
that the long one connects to the outer foil, which shouldn't really
make any difference in a nonpolar.

Elna makes caps, but they don't have a whole listing on their website -
they want you to order a catalog. Or you could call or email them.
http://www.elna-america.com/index.htm

Good Luck!
Rich
 
C

Chretien

Jan 1, 1970
0
Rich Grise said:
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says, CAP BP RDL
47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions.
It doesn't have any of the [------] negative markings on it. I guess the
thing that I'm a little mystified about is that the leads are different
length. eg one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really
a Non Polarized Cap right ??

Regards.

One way to be absolutely sure would be to take a 24V power supply, and
charge it in either direction. Use a 1k ohm or so resistor, so you
don't make sparks or anything. If it doesn't blow up either direction,
it's probably nonpolar.

The only reason I could think of for two different lead lengths is
that the long one connects to the outer foil, which shouldn't really
make any difference in a nonpolar.

Elna makes caps, but they don't have a whole listing on their website -
they want you to order a catalog. Or you could call or email them.
http://www.elna-america.com/index.htm

Good Luck!
Rich
Thanks all.
 
L

Lord Garth

Jan 1, 1970
0
Jamie said:
Chretien said:
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says,
CAP BP RDL 47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions. It
doesn't have any of the [------] negative markings on it. I guess the thing
that I'm a little mystified about is that the leads are different length. eg
one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really a
Non Polarized Cap right ??

Regards.
i don't know if your aware of this, but you can take 2 polarized caps of
double value and back to back them and get the same thing.


That should be series!!!! Your text sounds like inverse parallel.
 
J

John Fields

Jan 1, 1970
0
Jamie said:
Chretien said:
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says,
CAP BP RDL 47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions. It
doesn't have any of the [------] negative markings on it. I guess the thing
that I'm a little mystified about is that the leads are different length. eg
one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really a
Non Polarized Cap right ??

Regards.
i don't know if your aware of this, but you can take 2 polarized caps of
double value and back to back them and get the same thing.


That should be series!!!! Your text sounds like inverse parallel.
 
J

Jamie

Jan 1, 1970
0
Wayne said:
NO..NO... Bi-Polar means TWO poles. Plus and a Negative.

You want NON-POLAR.

Regards,

Wayne

that's strange, maybe i missed the boat.
Bi-Polar (Bidirectional)= ( both ways)?
i think the markings in the Cap meant
bi-directional polarity.
maybe your thinking about a Bipolar transistor?
i don't know, maybe the young recruits coming out of
school now using different acronyms
 
J

Jamie

Jan 1, 1970
0
Chretien said:
I needed a 47uF cap. Not Polarized.

I went and bought what I thought I needed . The package says,
CAP BP RDL 47uf 25v 5LS ELNA

I'm assuming that BP (Bi Polar) means that it can go in both directions. It
doesn't have any of the [------] negative markings on it. I guess the thing
that I'm a little mystified about is that the leads are different length. eg
one is short and one is long, just like Electrolytic CAPS.

Most of the Non Polarized Caps I have seen (Ok I'm new to this so a 100
maybe) have legs that are equal in length. Am I parinoid? This is really a
Non Polarized Cap right ??

Regards.
i don't know if your aware of this, but you can take 2 polarized caps of
double value and back to back them and get the same thing.
 
P

phaeton

Jan 1, 1970
0
Zoloft for Caps!!
....
That should be series!!!! Your text sounds like inverse parallel.

Perhaps in a Parallel Universe we have manically depressed people
popping Soft Caps and building microcontrollers out of Zoloft tabs.
 
L

Lord Garth

Jan 1, 1970
0
phaeton said:
Perhaps in a Parallel Universe we have manically depressed people
popping Soft Caps and building microcontrollers out of Zoloft tabs.

Have you been smoking Si?
 
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