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All Types Of Capacitors, Price & Inventory

ASCO ELECTRONIC GROUP CO.,LIMITED | Updated: Nov 15, 2017

All types of Capacitors



     A capacitor is a passive two-terminal electrical component that stores electrical energy in an electric field.[1] The effect of a capacitor is known as capacitance. While capacitance exists between any two electrical conductors of a circuit in sufficiently close proximity, a capacitor is specifically designed to provide and enhance this effect for a variety of practical applications by consideration of size, shape, and positioning of closely spaced conductors, and the interveningdielectric material. A capacitor was therefore historically first known as an electric condenser.[2]

     The physical form and construction of practical capacitors vary widely and many capacitor types are in common use. Most capacitors contain at least two electrical conductors often in the form of metallic plates or surfaces separated by a dielectric medium. A conductor may be a foil, thin film, sintered bead of metal, or anelectrolyte. The nonconducting dielectric acts to increase the capacitor's charge capacity. Materials commonly used as dielectrics include glassceramicplastic filmpapermica, and oxide layers. Capacitors are widely used as parts of electrical circuits in many common electrical devices. Unlike a resistor, an ideal capacitor does not dissipate energy.

     When two conductors experience a potential difference, for example, when a capacitor is attached across a battery, an electric field develops across the dielectric, causing a net positive charge to collect on one plate and net negative charge to collect on the other plate. No current actually flows through the dielectric, however, there is a flow of charge through the source circuit. If the condition is maintained sufficiently long, the current through the source circuit ceases. However, if a time-varying voltage is applied across the leads of the capacitor, the source experiences an ongoing current due to the charging and discharging cycles of the capacitor.

     Capacitance is defined as the ratio of the electric charge on each conductor to the potential difference between them. The unit of capacitance in the International System of Units (SI) is the farad (F), defined as one coulomb per volt (1 C/V). Capacitance values of typical capacitors for use in general electronics range from about 1 picofarad (pF) (10−12 F) to about 1 millifarad (mF) (10−3 F).

     The capacitance of a capacitor is proportional to the surface area of the plates (conductors) and inversely related to the gap between them. In practice, the dielectric between the plates passes a small amount of leakage current. It has an electric field strength limit, known as the breakdown voltage. The conductors and leads introduce an undesired inductance and resistance.

     Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies. In resonant circuits they tune radios to particular frequencies. In electric power transmission systems, they stabilize voltage and power flow.[3] The property of energy storage in capacitors was exploited as dynamic memory in early digital computers.[4]



Recently Hot Offer Capicitors,if you have other inquiry,welcome to send details to us to get a quotation.

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QuantityItemSizeRemark
11000Capacitor 50V1000UF13*20200pcs/package
11000Capacitor 50V100UF8*12500pcs/package
11000Capacitor 50V10UF5*111000pcs/package
11000Capacitor 50V220UF8*12500pcs/package
5000Capacitor 50V22UF5*11500pcs/package
110001N4007Diode1000pcs/package
5000Capacitor 25V2200UF13*21200pcs/package
11000Capacitor 50V470UF10*20250pcs/package
10000Capacitor 63V2200UF18*3550pcs/package
2500Capacitor 100V1UF5*111000pcs/package
2500Capacitor 100V22UF8*12500pcs/package
2500Capacitor 100V47UF8*12500pcs/package
9000Capacitor 100V220UF13*20200pcs/package
2500Capacitor 100V470UF16*25100pcs/package
4500Capacitor 100V2200UF22*4050pcs/package
9000Capacitor 50V680UF13*20200pcs/package


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ASCO ELECTRONIC GROUP CO.,LIMITED
Tel: +86-755-89678886
Mob:+86-13590407046
Address: RM4311 , 43/F , SEG Plaza , Huaqiang North RD , Futian District , SZ ,GD , CN 518000
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