Electrolytic Instead Of Ceramic

0 47µf is large for a ceramic and is a non polarized high quality cap. And i was wondering if i could use 1uf electrolytic capacitors instead of the 1uf tantalum capacitors and the 1uf ceramic capacitors on this circuit since i couldn t find any tantalum or ceramic anywhere in my country. Electrolytic and ceramic caps have different characteristics and one may or may not work well in place of the other.

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Capacitors are measured in farads or microfarads not in ohms.

Electrolytic instead of ceramic.

It also has more leakage than a ceramic and poorer performance at high frequencies. Mlcc caps are made in a surface mount package most commonly though they can be found in leaded packages as shown in the photo. When using ceramics in power rail applications their capacitance vs. There are various types of ceramic caps.

0 47µf is small for a electrolytic and is a polarized cap. The polarization may mean it cannot be used in this application. Make sure you use one with a high enough voltage rating. Mylar is a bit more subtle but nowadays you can use ceramic for most of those purposes.

Without seeing the circuit it s not really feasable to advise you what you could replace the ceramic capcitor with although you seemed to have proven that the electrolytic you have is not the answer and at very least the incorrect value. You know when you re using electrolytics they re polarized and the values are larger. Another problem would be that a 220nf electrolytic will be very hard to find because very few manufacturers make electrolytics below 1uf. If you can get ceramic caps even several parts in parallel do that instead of electrolytics.

Sounds like you are reading the value of the ceramic capacitor incorrectly. The ones shown the photo appear to be the mlcc type. Voltage characteristics must be taken into account. It would be better to use ceramic and also for the 10uf and 1uf cap as well.

They re almost all ceramic save the 33pf off 8 which looks like it might be a mylar or tantalum though honestly ceramic should be fine there too.

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