Cap voltage can I go higher

captaink · 3rd November 2007, 12:10 AM

I have some Elna caps in my CDP’s PSU on the tube output stage which I am looking to change. They are rated at 100uf @ 400V, could I go higher on the voltage say 500V or do I have to use the same. I already know the voltage can be higher with output caps just wondering if it the same with other caps in other applications.
Thanks

philpoole · 3rd November 2007, 07:17 AM

I'd say its very important to be within the capacitor's specified voltage in ANY scenario.
Otherwise, they have a habit to go BANG! Not bad for November the 5th I suppose.

Valery · 3rd November 2007, 07:32 AM

Quote:

Originally posted by captaink
I have some Elna caps in my CDP’s PSU on the tube output stage which I am looking to change. They are rated at 100uf @ 400V, could I go higher on the voltage say 500V or do I have to use the same. I already know the voltage can be higher with output caps just wondering if it the same with other caps in other applications.
Thanks

You can for shure go higher on capacitor voltage, this will be just safety with no parameters degradation.
The higher voltage the costly capacitors and larger dimensions so with the mass electronics there have to be justified compromise. In DIY audio your hands are free

. Always and anyway you can change the electronic details with the same tipes rated for shure the same or higher voltage.

captaink · 3rd November 2007, 08:56 PM

Quote:

Originally posted by Valery

You can for shure go higher on capacitor voltage, this will be just safety with no parameters degradation.
The higher voltage the costly capacitors and larger dimensions so with the mass electronics there have to be justified compromise. In DIY audio your hands are free . Always and anyway you can change the electronic details with the same tipes rated for shure the same or higher voltage.

Thanks for your help going to buy some new caps

3rd November 2007, 12:10 AM	#1
captaink diyAudio Member Join Date: Nov 2004 Location: York	Cap voltage can I go higher I have some Elna caps in my CDP’s PSU on the tube output stage which I am looking to change. They are rated at 100uf @ 400V, could I go higher on the voltage say 500V or do I have to use the same. I already know the voltage can be higher with output caps just wondering if it the same with other caps in other applications. Thanks

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3rd November 2007, 07:17 AM	#2
philpoole diyAudio Member Join Date: Oct 2004	I'd say its very important to be within the capacitor's specified voltage in ANY scenario. Otherwise, they have a habit to go BANG! Not bad for November the 5th I suppose.