What is the nonpolar capacitor?

A nonpolar capacitor is an electrical component that can be connected in either direction in a circuit without affecting its performance. Unlike polar capacitors, such as electrolytic capacitors, nonpolar capacitors do not have a positive or negative terminal. They are typically used in applications that require AC signals or in situations where the voltage can reverse, such as in audio and coupling circuits. Common types of nonpolar capacitors include ceramic, film, and tantalum capacitors.