16v. caps in 15v. circuit

john dozier

Member

Joined 2010

2011-01-01 12:04 am

#1

• 2011-01-01 12:04 am

• #1

I have some 16v 47uf BG caps I would like to use as ps bypass caps in a 15v circuit. Is this safe to do? They are FK BGs, their highest grade. Thanks

 

B

bob91343

Member

Joined 2010

2011-01-01 12:10 am

#2

• 2011-01-01 12:10 am

• #2

As long as the voltage never goes above 16V it's safe.

 

M

marce

Member

Joined 2007

2011-01-01 11:56 am

#3

• 2011-01-01 11:56 am

• #3

Standard practice for reliability is to spec a elect at 2X the working voltage. 16V will work, but I'd still go for a higher voltage to be on the safe side.

 

analog_sa

Member

Joined 2002

2011-01-01 1:28 pm

#4

• 2011-01-01 1:28 pm

• #4

If the 15v is regulated there will be no problems.

 

john dozier

Member

Joined 2010

2011-01-01 3:56 pm

#5

• 2011-01-01 3:56 pm

• #5

It is a regulated supply for the output opamps in a DAC. I am concerned about voltage spikes. These are the de-coupling caps and I do not know enough about the circuit to know if spikes are possible. Thanks for any info.

 

A

Aucosticraft

Member

Joined 2009

2011-01-01 4:43 pm

#6

• 2011-01-01 4:43 pm

• #6

Keeping in mind degradation of capacitor over the time, It wont be recommended. so at least go for 1.5x.