Capacitors are one of the building blocks of any electronic circuit and they perform an important function of storing and supplying electric charge when in demand. There are various types of capacitors that perform different functions based on their physical properties. Tantalum is a kind of refractory metal that is often used as a small component in an alloy. In the electronic circuits, a SMD tantalum chip capacitor is identified as a small capacitor that is used for high-frequency ranges. Almost all the recent electronic devices use this component in their circuitry. Another variant that also plays an important role in electronic items is a trimmer capacitor that is also used extensively in electronics. Its flexible nature is extremely useful in molding it into a plate or tube form. The gaps between its metalized surfaces are filled with a dielectric.
This type of capacitor covers a wide range of capacitance and the plates in it are either placed in distance from each other or shifted towards each other to change the amount of capacitance. A dielectric is used for insulation between the plates. This capacitor gets the name owing to its functionality of trimming the active and passive circuits’ performance. A metal-oxide Varistor is made up of a mass of metal oxides that are sandwiched between the electrodes. The boundary between each of the zinc oxide grains form a diode junction that causes current to flow in a single direction. The function of this amazing device is to prevent a surge in voltage from damaging the circuits.
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