77Views6Replies

Author Options:

is 470 mf close enough to replace a 500 mf cap ? Both are 25 volts Answered

is 470 mf close enough to replace a 500 mf cap ?  Both are 25 volts

Comments

The forums are retiring in 2021 and are now closed for new topics and comments.
0
Josehf Murchison
Josehf Murchison

5 years ago

FOR WHAT????

After a rectifier in a power supply, yes most likely if the output is regulated.

If it is used on the output of an amp to the speaker, most likely.

Someplace else in a circuit, No it may not be. Such as if it is used on a filter you may need to change the corresponding resistor or inductor to keep the filter in range of Its design, so it all depends on what the capacitor is used for.

0
seandogue
seandogue

Answer 5 years ago

+1. good point to distinguish between a localized power reservoir (caps located near to ics and loads and used to shore up the supply against momentary load current surges) and a filtration component that is designed to filter frequency components at specific cutoff frequencies.

0
Josehf Murchison
Josehf Murchison

Answer 5 years ago

People forget about frequencies.

A capacitor is a insulator & storage device or a resistor depending on the frequency.

An inductor is a dead short or a storage device & resistor depending on the frequencies.

470 uf is a common audio frequency capacitor.

0
verence
verence

5 years ago

Should work. It's close enough to try it. But make sure, the capacitors have similar ESR.

0
rickharris
rickharris

5 years ago

Capacitor tolerances are usually huge so will probably work - with some reservation - see josehf post.

0
Downunder35m
Downunder35m

5 years ago

Depends for what but usually I would say it's no problem.