20 KHz specified on capacitor

[gmphadte]

I have these old saved capacitors. They r 680µF/250V, and 20KHz IEff is mentioned on the body. Does it mean these capacitors can handle ripple of 20 KHz. How good r they as filter for a power amp.

Gajanan Phadte

 

[Aucosticraft]

ahh... even google had no answer

 

[DF96]

Perhaps intended for SMPS use? Ripple current rating does depend on ripple frequency.

 

[gmphadte]

But one thing is sure. They sound good. I have connected them in parallel to the existing 20000µF/63V Elna+16400µF/175V Nichicon (IIRC).

After connecting these 680s, the amp has become musical. Was a bit dull before.

Gajanan Phadte

They r made by Phillips if that mis of any use.