Why do we use polarized capacitors?
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I want to know if the polarized capacitor has some advantage that they are used in some circuits? For example, in a schematic of the BISS001 PIR controller IC, in some places, a polarized capacitor is used and in some places a non-polarized capacitor one. Can I use a non-polarized capacitor with the same voltage and capacitance instead of these polarizing capacitors? Reference Docs: BISS001 datasheet HC-SR501 PIR MOTION DETECTOR datasheet Grove - PIR Motion Sensor or EasyEDA link What I've understand from your answers is why the electrolytic capacitors are used, and why these are polarized. But the designers of this circui...