In article ,
Jim Adney wrote:
On Mon, 08 Mar 2004 21:44:10 GMT Al wrote:
In article om,
"Henry Kolesnik" wrote:
After several calls to the factory I was able to find someone who had a
book
on the codes. Here's what he gave me when he figured out what number was
important.
2116 = 1uF @ 50V
2064 = 6.8uF @ 35V
2139 = 18uF @ 50V
2031 = 22 uF @ 15V
2017 = 33uF @ 10V
2004-J = 47uF @ 6V
2035 = 68uF @ 15V
2021 = 100uF @ 10V
I've measured several on two different capacitor meters and all read close
to what the factory told me. I wonder why they coded the values with
numbers that don't make any sense? Military intellligence?
The numbers, like 2116, are just sequencial numbers on a very large
table that covers many pages in a manual. The numbers make sense
when you have the manual.
Okay, but why pick an identifiction method that requires a manual?
Most other components this size, including theirs, just have the
relevant numbers printed on them.
-
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Jim Adney
Madison, WI 53711 USA
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OK, let me give you a few example lines from the manual:
uF Case tol. Failure Rate (%/1000hrs) DC Leakage in uA
Code % 1.0 0.1 0.01 0.001 25C 85C 125C
5.6 A 5 5001 5201 5401 5601 0.3 6 7.5
5.6 A 10 2241 2481 2721 2961 0.3 6 7.5
6.8 A 5 5002 5202 5402 5602 0.3 6 7.5
6.8 A 10 2242 2482 2722 2962 0.3 6 7.5
6.8 A 20 2243 2483 2723 2963 0.3 6 7.5
So a M38003/01-5001 is unique. I left out the dissipation factor for
simplicty.
As you can see, there is much more information in this code number than
just the capacitance value and the voltage. When a component is bought
to this specification, it will meet it. If you buy a random FF uF VV
volt capacitor, you have no clue as to what you have with respect to
leakage, reliability, dissipation factor and the like.
al
--
There's never enough time to do it right the first time.......