Originally Posted by
Cullimore:
“just looked again on that link and he quotes 1000uF 16V High Temp (105 Degrees)
will these be okay to use as you quote 25v
are these the ones you are talk about ?
maplin code DT70M”
25V rating have a lower impedance factor.
It is clear by the number of failures that 16V is probably not good enough.
Most elecrolytic capacitors will fail in time. I think the ones originally fitted had a lifespan of 1000hrs at 105 degrees C. Most 25V capacitors are rated at 2000hr at 105 degrees C.and due to the slightly larger size will not get as hot as the smaller 16V
You can get special Panasonic capacitors off E bay with a 5000hrs at 105 degrees C rating. for less than Maplins price.
You can fit 16V which is what was fitted, its just that I fit 25V for better reliability!
If you are not sure about the difference in Capacitor voltages then I do not think you should be attempting removing and replacing these capacitors. Polarised capacitors are known to explode if connected incorrectly!