How to distinguish the positive and negative polarities of the multiplayer ceramic chip capacitors? (I)

Multiplayer ceramic multiplayer ceramic multiplayer ceramic chip capacitors, also known as SMD capacitors, surface mount capacitors, are usually yellow, black, or light blue in appearance. Can be divided into two types of non-polarity and polarity, Samsung capacitor agent for you to explain how the positive and negative patch capacitors to distinguish?

The positive and negative electrodes of the aluminum electrolytic capacitor and the black block marked with a measuring capacitor are the negative electrodes. There are two semicircles in the position of the capacitor on the PCB, and the corresponding half of the colored semicircle is negative. It also uses the length of the pin to distinguish positive and negative long legs from positive and short legs from negative.

When we do not know the positive and negative capacitance, you can use a multimeter to measure. The dielectric between the two poles of the capacitor is not an absolute insulator, and its resistance is not infinite, but is a finite value, generally above 1000 megohms. The resistance between the two poles of the capacitor is called the insulation resistance or the leakage resistance. Only when the positive electrode of the electrolytic capacitor is connected to the power supply (the black meter when the electric resistance is blocked), and the negative terminal is connected to the negative of the power supply (the red meter when the electric resistance is blocked), the leakage current of the electrolytic capacitor is small (the leakage resistance is large).