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BC Components 052 vs. CDE DCMC

Posted on August 19, 2023 at 14:08:06

Posts: 247
Joined: August 5, 2011
I am building a power supply for my premp. The PS circuit recommend to use BC Component 052 series, but it is very hard to source. Would I use CDE DCMC Instead?


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Any quality electrolytic that can handle the ripple voltage with a reasonable ESR is fine, posted on August 19, 2023 at 15:12:17

Posts: 2578
Location: The South
Joined: December 24, 2012
Decent power supply caps are not hyper-specific. Good Panasonic, Nichicon, CDE or the like are fine. You want to get fru fru, use big film caps.


Plastic caps have an advantage, posted on August 20, 2023 at 11:18:29

Posts: 3545
Joined: September 5, 2002
Solens are not so expensive and they are more resistant to heat than electrolytics in my experience. They cannot dry out and therefore need not ever be replaced in theory. Also, I believe that the ESR over time would not change as much because the plastic caps cannot dry out.


DC Link caps if you find them, posted on August 20, 2023 at 13:53:24
andy evans

Posts: 4314
Joined: October 20, 2000
Best I've used are Kemet C4AQ. Long lead times on some of them.

If you can do BIG, then KBG PIOs are marvellous. Available from ex-Soviet countries like Ukraine and Bulgaria. I use 4uF or 6uF as the first cap.

I'm about to order some of the recommended types for cathode bypass use - Elna Silmic II, Nichicon FG, KG, KZ, SE bipolar, Audio Note Kaisai..... Some are low voltage for tube PSUs though.


And they have disadvantages, posted on August 20, 2023 at 14:33:43

Posts: 9896
Location: Central Texas
Joined: September 24, 2006
Namely, cost and size. Aluminum electrolytics work really well for most things, and they typically last two to four decades. That puts replacement into the next reincarnation for me. :)


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