A question about capacitors - does physical size matter?

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Chandler
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A question about capacitors - does physical size matter?

Postby Chandler » Thu Feb 22, 2018 10:40 am

I've been changing some capacitors in an SM 124 lately as i found 2 to be dried up and open

A couple of the caps are very long (4 cm) but most modern day replacements are half that length, the 2 caps are a 470uf x 35V and a 1000uf x 25V

These are usually 2 long orange or yellow caps on the SM 124 PCB near the rear of the monitor

What i wanted to know is, is it ok to use these modern day shorter caps? is there a reason why these 2 particular caps on the SM 124 PCB are long? and if so what is the reason for that?

In the picture below the original cap is the orange one and new cap is the brown one

Image

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Gaiyan
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Re: A question about capacitors - does physical size matter?

Postby Gaiyan » Thu Feb 22, 2018 11:22 am

I don't think size matters (heh) as long as it's within spec in terms of capacitance, voltage, ESR and ripple current.
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