Five Great Tips for Electrolytic Capacitor Circuit Design  

Excellent. I agree with the general concept of keeping the working demands on an e-cap well within its limits. However, I believe there may be some misconceptions within the EE hobbyist community... 1) There seems to be the idea that, when replacing e-caps, there is no upper limit to the new cap's voltage rating, so long as it meets the minimum required voltage of the existing e-cap... As an example--- Say you have a 100uF e-cap, with a voltage rating of 10V. And, you replace it with an e-cap that is 100uF, with a voltage rating of 400V, because that is what you have in your stocks... Past common thinking was that this was perfectly acceptable. However, I am learning that, with such a large difference in the working voltage supplied verses the voltage rating stated on the e-cap, the new cap may never completely form, with the consequence that the cap never develops its full capacitance ability. You may not have sufficient capacitance, after all. 2) Likewise, there is the thinking that you may use an e-caps with any capacitance value, so long as that value is equal to, or greater than, the existing e-cap's capacitance rating. From our prior example, say raising the 100uF e-cap value to 1000uF. This will have various consequences (possibly disastrous,) depending upon the use of the particular e-cap... Such as changing the frequency of a timing circuit, or creating massive in-rush current that destroys the entire circuit. I suggest that a video addressing these, and other, common misconception would make a wonderful follow-up video. HTH. Cheers. Sub'd!

Good advice!👍👍👍

Thank you Ian ... YES , I do agree with all your notes and I experienced all of them in my electronics engineering career so far ... How old are you Sir ?...

Terrific videos , We need more like these. I learned the hard way that E-caps are not good for timing circuits as well. They have significant fluctuations with temperature.