[SADXA] Electrollytic capacitors

[Ron Jones]

According to the spec sheet for the 381LQ series of capacitors from CDM, the smaller size is "achieved with a new can closure method that permits installing capacitor elements into smaller cans......enables you to shrink equipment size and retain the original performance"
A link to the specs can be found at DigiKey (the Google of component data sheets). A DigiKey part number that bears looking at is:  3383766-ND   560uF at 450V and a smaller size than your original. At $8 each, I'd buy new ones.

Ron K7RJ



-----Original Message-----
From: SADXA [mailto:sadxa-bounces at mailman.qth.net] On Behalf Of Tom Kramer
Sent: Monday, December 29, 2014 9:29 PM
To: CADXA SHARE; SADXA Reflector
Subject: [SADXA] Electrollytic capacitors

I suppose this is something I should know but so far have not been able to find a definitive answer on line.

My Heath SB220 uses 200 mfd X 450 DCV capacitors that are 1.25 “ diameter by 4 “ long.  As a replacement I was offered a capacitor of the same mfd and voltage rating but in a package of 3/4 inch by about 1.25 inched length.  

There must be some reason for using the larger size capacitor but I can’t explain why.  I assume it may have to do with the amount of current that is being sent through the device.  

Any expert advice to share?  73 Tom NQ7R ______________________________________________________________
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