Capacitor physical size differences

Thread Starter

chucknnc

Joined Feb 12, 2015
4
I have a new Mallory 100000mfd or .1 farad 15v cap thats the same size as my 1 farad 15 audio car cap, yet the is the same physical size as the Mallory thats 1/10 the capacity. Then theres super caps I got off Ebay, they are 500 farad
at 3v and same size as D cell battery, I could series 5 of them to get 500 farad at 15v, thats 5000 times the capacity of the Mallory and much smaller? If the ratings are correct why do they still put large low capacity caps in modern electronics?
 

KeithWalker

Joined Jul 10, 2017
453
I have a new Mallory 100000mfd or .1 farad 15v cap thats the same size as my 1 farad 15 audio car cap, yet the is the same physical size as the Mallory thats 1/10 the capacity. Then theres super caps I got off Ebay, they are 500 farad
at 3v and same size as D cell battery, I could series 5 of them to get 500 farad at 15v, thats 5000 times the capacity of the Mallory and much smaller? If the ratings are correct why do they still put large low capacity caps in modern electronics?
Larger electrolytic capacitors cost much less to make than small ones of the same value and rating.
 
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