Typically, electrolytic capacitors and tantalum capacitors are polarized. You can find positive and negative polarity markings on the capacitor’s casing, and it’s important to pay attention to these markings and connect the circuit correctly when using them.
Polarized capacitors have distinct positive and negative terminals. The positive terminal, or anode, must be at a higher voltage than the negative terminal, or cathode, for the capacitor to function correctly. A common type of polarized capacitor is the Electrolytic Capacitor.
Axial style capacitors are not used very often but are interesting in how they are marked. A negative or cathode band runs down the side of them similarly to the radial style but there is an arrow in the marking that indicates which side is negative or the cathode. PTH axial style electrolytic.
In the type of ‘Axial’, an arrow indication is provided to determine the negative terminal presence in the capacitor. This also states the charge flow direction in the respective capacitor. if you could have observed multiple capacitor some capacitors do have their positive terminal longer in comparison with the negative terminal.
In the world of electronics, the term ‘polarity’ refers to the orientation of positive and negative electrical charges. When it comes to capacitors, polarity signifies whether a capacitor has a specific positive (anode) and negative (cathode) terminal. A polarized capacitor is a type of capacitor that has distinct positive and negative terminals.
In axial capacitors, the terminals are typically located at opposite ends of the cylindrical body and extend outward in the same axis as the body. One terminal is designated as positive (+), while the other is negative (-), indicating the polarity of the capacitor. Here’s a brief explanation: