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What are the advantages of CBB capacitor principle?

Views: 4     Author: Site Editor     Publish Time: 2024-03-13      Origin: Site

Technology is developing, telecommunication technology is changing with each passing day, and the demand for consumer electronics products is growing, which makes the chip capacitor industry move forward rapidly. China has now become a major producer of capacitors in the world. While we are proud of this, let us understand the principle of CBB capacitors.

The so-called chip capacitor is a passive device that stores energy in the form of an electric field. It is present in almost all electronic circuits and can play various roles such as blocking DC and AC, coupling, bypassing, filtering, and tuning. A capacitor is an energy storage component consisting of two metal plates and an interlayer of insulating dielectric. Its basic structure and symbol are as shown in the figure below. Any two conductors that are close together and insulated from each other form a capacitor. When a voltage is applied to the conductors, the capacitor begins to store charge.

The discharge process is the process of the chip capacitor releasing the stored charge. When a charged capacitor is in a closed path with no power supply, the charges on the negatively charged metal plate will run toward the positively charged metal plate under the action of the electric field force, neutralizing the positive and negative charges, and the capacitor begins to discharge.

CBB capacitors have the following main advantages: extremely low loss; low dielectric absorption coefficient; high insulation resistance; good frequency characteristics; excellent self-healing and high stability.

CBB capacitor is a capacitor with a metal foil as an electrode, which is overlapped with polypropylene film from both ends and wound into a cylindrical structure. The principle is the same as that of polyester capacitors, with no polarity, high insulation resistance, excellent frequency characteristics (wide frequency response), and very small dielectric loss.

CBB capacitors have low loss, strong moisture resistance, excellent electrical properties, good reliability, large capacity, long service time and good self-healing properties. Replaces most polystyrene or mica capacitors for circuits with higher requirements.


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