Quote:
Originally Posted by Electronic M
Two rules for selecting replacement caps when exact replacements are not available: you can fudge the capacitance by 10%(in most cases) with papers(and to higher %s with lytics), and you can always put in a capacitor with a higher voltage rating than the original (but NEVER go lower).
Most circuits expect a 10-30% on most parts (Lytics could have 50% tolerance back in the day). Capacitors voltage rating is for the maximum voltage that can be safely applied with out blowing them. You could replace a 50V 10,000pF cap with a 50,000V 10,000pF high voltage door knob cap and it would work fine provided you could find the space to mount the larger doorknob cap.
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Always good to know; I recently had to buy a .05 400V cap, but I only had a 1000V one, and thought the voltage was too much.
Thanks for explaining there is no limit to the voltage.
As far as electrolytics, in multi cans when you have for example:
80uf @ 350v
40uf @ 350v
100uf @ 50v
Does it matter if the 100uf 50v gets replaced with a 600v?
For some reason I thought I should keep the voltage close...
other than cost and size, it wouldn't matter in the circuit?