Switch PSU replacment capacitors - which ones?

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I am attempting to resurrect a couple of Zyxel network swtiches.
Quite simple devices, but they litterally vaned over a week or two, and then stopped working entirely.
Only the power light was on - nothing else happening.

Opening one revealed that there isn't much in there but a couple of chips, and a PSU board.,

IMAG4300x.jpg

The most common suspect component in seemingly power-related failures is the electrolytic capacitor, with the tell-tale bulging of the cap.
And sure enough, the PSU board has a few capacitrors, one of which is bulging.

IMAG4302x.jpg

So the question is: What to replace the cap(s) with?
The specifications on the side of the componentea er 10V 1000 uF.

IMAG4305x.jpg IMAG4306x.jpg

There seems to be 20 different variants on Mouser that matches these specs.
The parameters that differentiates do not make much sense to me.
It seems to be a question about ripple currents and ESRs
As I am buying just a few, they're more or less the same price to me.

So which one's do I buy? :)
 

2cvbloke

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As long as they're the right voltage, capacitance and dimensions (though you can use different sized ones if need be), then you don't have to worry about the ripple current and ESR numbers... :)
 

Terryl

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If the 10 volt ones are bulging then they are a bit under rated for that supply, (typical marketing, telling engineering to make it work and keep it cheap) I would go with some 16 volt but keep the uF the same.

So 16 volt 1000 uF would work better, and last a bit longer, you also have a temperature rating so keep that in mind.(105 degrees C)
 

PaulR

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Note that the capacitors are rated at 105C. Don't be tempted to fit cheaper lower temperature rated caps.
 

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Something better, potentially bigger that fits in the same space is my rule of thumb.

For the cost of the components and labour, could you shoehorn a better psu into the case ?
 
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