X5R characteristics

B

Boris Mohar

Guest
Hello,


Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.

--

Boris Mohar
 
Boris Mohar wrote:
Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.

--

Boris Mohar
Click to expand...
Try the following, and use the data sheet link (does not work for me
because i do not have flash):
http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=10&M=ECJ-2YB1A564K

Failing that, get:
http://www.avxcorp.com/docs/Catalogs/cx5r.pdf

I know there are other references, but this should suffice.
 
Boris Mohar wrote:
Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.
This has lots of info, but details only on the X7R type:
Click to expand...
http://www.avxcorp.com/docs/Catalogs/lthecap.pdf
This one covers Z5U:
http://www.niccomp.com/Catalog/nmc4.pdf
Nope:
http://www.niccomp.com/Products/TC_Ceramics.pdf
Finally!
http://www.avxcorp.com/docs/masterpubs/mccc.pdf


--
John Popelish
 
On Sun, 25 Apr 2004 02:14:50 -0400, John Popelish <jpopelish@rica.net> wrote:

Boris Mohar wrote:

Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.
This has lots of info, but details only on the X7R type:
http://www.avxcorp.com/docs/Catalogs/lthecap.pdf
This one covers Z5U:
http://www.niccomp.com/Catalog/nmc4.pdf
Nope:
http://www.niccomp.com/Products/TC_Ceramics.pdf
Finally!
http://www.avxcorp.com/docs/masterpubs/mccc.pdf
Click to expand...
Thanks but I have been there. It only gives temperature dependance.

--

Boris Mohar
 
On Sun, 25 Apr 2004 05:43:23 GMT, Robert Baer <robertbaer@earthlink.net>
wrote:

Boris Mohar wrote:

Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.

--

Boris Mohar



Try the following, and use the data sheet link (does not work for me
because i do not have flash):
http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=10&M=ECJ-2YB1A564K

Failing that, get:
http://www.avxcorp.com/docs/Catalogs/cx5r.pdf

I know there are other references, but this should suffice.
Click to expand...
For temperature dependance only. I am looking for voltage dependance.
Thanks for trying.
--

Boris Mohar
 
"Boris Mohar" <borism_-void-_@sympatico.ca> wrote in message
news:dhgn80h34ltu9v1ks4n8p91075krr63op5@4ax.com...
On Sun, 25 Apr 2004 05:43:23 GMT, Robert Baer <robertbaer@earthlink.net
wrote:

Boris Mohar wrote:

Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and
this
seems to be a well kept secret.

--

Boris Mohar



Try the following, and use the data sheet link (does not work for me
because i do not have flash):

http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=10&M=ECJ-2YB1A56
4K

Failing that, get:
http://www.avxcorp.com/docs/Catalogs/cx5r.pdf

I know there are other references, but this should suffice.

For temperature dependance only. I am looking for voltage dependance.
Thanks for trying.
Click to expand...
It's there. You have to download their catalog and browse through it. I
can't remember which web site I looked at, but think it was either AVX or
Murata. You could ask your salesman to point you in the right direction.

Tam
--

Boris Mohar
Click to expand...
 
On Sun, 25 Apr 2004 09:51:55 -0400, Boris Mohar
<borism_-void-_@sympatico.ca> wrote:

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.

Failing that, get:
http://www.avxcorp.com/docs/Catalogs/cx5r.pdf

I know there are other references, but this should suffice.

For temperature dependance only. I am looking for voltage dependance.
Thanks for trying.
Click to expand...
Pages 10 and 11 of the original reference give voltage dependance ( AC
and DC) of X7R.

X5R is the same dielectric material grade, but cannot be temperature
characterized above it's operating limit of 85degC. X5R charts are X7R
charts truncated at 85degC.


Voltage dependance of capacitance, as a function of the rated voltage,
remains the same. This is why the X7R tables are provided on the X5R
data sheet (same difference as between mil AX and BX).

This temperature limit reflects only the manufacturing quality process
and failure rates expected with the layer thicknesses used to obtain
greater CV per unit volume. They are market driven - not strictly
material driven - as high volume commercial demand justifies the less
stringent process. Generally an X5R part is seldom available, after
the X7R quality level is established for that part, at the same
voltage.

The published data is only applicable for this specific manufacturer's
product. SpiCap3 software is available from AVX to provide a visual
illustration of typical performance of the two dielectrics.

As an example, 0.47 uf is offered in both dielectrics in 1206 body
size - one rated at 50V, the other at 35V. Both show the same
predicted capacity when stressed to 35V, though this is obviously a
different stress level for these two parts. The voltage rating has
been established through demonstration, rather than through a process
change.

Both software dielectric models show a 25% reduction in C at the rated
voltage (10V), in higher (but different) capacity parts with the same
body size, though the published table predicts 10%.

RL
 
Boris Mohar wrote:
On Sun, 25 Apr 2004 05:43:23 GMT, Robert Baer <robertbaer@earthlink.net
wrote:

Boris Mohar wrote:

Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.

--

Boris Mohar



Try the following, and use the data sheet link (does not work for me
because i do not have flash):
http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=10&M=ECJ-2YB1A564K

Failing that, get:
http://www.avxcorp.com/docs/Catalogs/cx5r.pdf

I know there are other references, but this should suffice.

For temperature dependance only. I am looking for voltage dependance.
Thanks for trying.
--

Boris Mohar
Click to expand...
Look at pages 10 and 11 in the PDF for AC and Dc voltage curves.
Granted, even tho the PDF is supposed to cover X5R, those curves are
designated for the X7R type.
On page 10, the document speaks of class 1 and class two dielectrics;
this may be of help.
Perhaps a PDF covering another of their dielectric type may have more
definitive info.
 
On Sun, 25 Apr 2004 09:50:15 -0400, Boris Mohar
<borism_-void-_@sympatico.ca> wrote:

On Sun, 25 Apr 2004 02:14:50 -0400, John Popelish <jpopelish@rica.net> wrote:

Boris Mohar wrote:

Hello,

Hello,

I am looking for a voltage coefficient or a suitable graph for X5R type
capacitors. I looked at usual sources like AVX, TDK, Murata etc and this
seems to be a well kept secret.
This has lots of info, but details only on the X7R type:
http://www.avxcorp.com/docs/Catalogs/lthecap.pdf
This one covers Z5U:
http://www.niccomp.com/Catalog/nmc4.pdf
Nope:
http://www.niccomp.com/Products/TC_Ceramics.pdf
Finally!
http://www.avxcorp.com/docs/masterpubs/mccc.pdf

Thanks but I have been there. It only gives temperature dependance.
Click to expand...
EIA standard 198 might have what you need, but it will cost you $58 to
find out...

http://global.ihs.com/


================================

Greg Neff
VP Engineering
*Microsym* Computers Inc.
greg@guesswhichwordgoeshere.com
 
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