What is a capacitor, and how is it represented by its symbol 1

Date:2025-12-08 Categories:Product knowledge Hits:175 From:Guangdong Youfeng Microelectronics Co., Ltd


A capacitor is a passive component capable of storing electric charge and exhibiting capacitance. It typically consists of a dielectric material sandwiched between two conductors. The dielectric between the conductors blocks the flow of direct current but allows alternating current signals to pass through. By storing positive and negative charges in an electric field, capacitors can perform numerous critical functions in electronic circuits, such as filtering, coupling, and timing.diode

Capacitors are typically measured in farads (F), the unit symbol for capacitance. One farad equals the capacitance required to store one coulomb of charge at a voltage of one volt. However, since the farad is a relatively large unit, smaller units such as microfarads (μF, 1 μF = 10^-6 F) and picofarads (pF, 1 pF = 10^-12 F) are commonly used in practical circuit design to express capacitor capacitance.

Based on their structure and performance, capacitors can be classified into various types, including:diode

1. Fixed capacitors: such as CY7C185-15VI ceramic capacitors, electrolytic capacitors, and metallized polyester film capacitors.diode



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