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March 9th 04, 02:28 PM
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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. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- 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....... |
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