I'm about to replace all the electrolytic capacitors inside a 30 year old computer power supply and will order mostly Panasonic FR-series capacitors which I understand are ideal for this sort of application (low ESR, 105 degrees C and 10 000 hour life) from Farnell for this.
But locating replacements for the two 400V caps in the PSU proves to be a challenge (150uF/400V and 10uF/400V) as neither are available in Panasonic's FR range and I am having difficulties figuring out if the other brands/types available are indeed low-ESR types. I did find a Rubycon BXW-series 150uF/400V, but I haven't had success in figuring out if they're catagorized as "low ESR" or not. They do appear to be geared towards power supplies, according to a description of Rubycon's BXW-series, but then again in Rubycon's online catalog (scroll down to the "Radial lead aluminum electrolytic capacitors" section) it doesn't list them as low-ESR but they're still recommended for power supply applications....
I'm confused! Are Rubycon BXW-series capacitors rated as low-ESR?
As for the 10uF/400V I haven't found anything suitable at Farnell although there is a 12uF/400V Rubycon BXW capacitor available. Will it do, or should I really find something which is exactly 10uF?
Other than that there's a Panasonic ED-series 10uF/400V, but I believe that's a general purpose type cap, not low-ESR.
But locating replacements for the two 400V caps in the PSU proves to be a challenge (150uF/400V and 10uF/400V) as neither are available in Panasonic's FR range and I am having difficulties figuring out if the other brands/types available are indeed low-ESR types. I did find a Rubycon BXW-series 150uF/400V, but I haven't had success in figuring out if they're catagorized as "low ESR" or not. They do appear to be geared towards power supplies, according to a description of Rubycon's BXW-series, but then again in Rubycon's online catalog (scroll down to the "Radial lead aluminum electrolytic capacitors" section) it doesn't list them as low-ESR but they're still recommended for power supply applications....
I'm confused! Are Rubycon BXW-series capacitors rated as low-ESR?
As for the 10uF/400V I haven't found anything suitable at Farnell although there is a 12uF/400V Rubycon BXW capacitor available. Will it do, or should I really find something which is exactly 10uF?
Other than that there's a Panasonic ED-series 10uF/400V, but I believe that's a general purpose type cap, not low-ESR.
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