SFA37S6K219B-F

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Film capacitors are commonly used in operating circuit of high-frequency electronic apparatuses; and they are widely applied on medical instruments, radio and TV, amateur instrument, computers, communication systems, industrial electrical automatic control system, voltage absorption and other electronic equipments. SFA37S6K219B-F, as one of the film capacitors, is a kind of polypropylene film (PP) capacitor, in which aluminum foil serves as the electrode and polypropylene film serves as insulation as well. The capacitor is featured with excellent insulation property, strong temperature resistance, wide working frequency, and excellent stability.

SFA37S6K219B-F stands out for its small size, wide operating temperature range, long-term stability, and moisture resistance, so it can be applied in various occasions. Generally, the application fields of the umbrella can be divided into two categories. The first one is major industrial and civil digital electronic products, such as TVs, displays, video players, etc. The second one is all kinds of communication products, such as telephones, network communication equipments, and mobile audio. These devices need capacitors’ filtering function so as to reduce the noise interference and make micro electronic system obtain better performance.

The working principle of SFA37S6K219B-F film capacitor is very simple. The aluminum foil serves as the anode of the capacitor, PP film serves as the dielectric insulation medium, while the aluminum foil coated with copper serves as the cathode of the capacitor. The capacitor will form an ideal capacitor where an electrical charge is stored between the two terminals when the two electrodes are put into the dielectric material. The capacitor can collect energy when the DC switch is turned on, and release energy when the switch is turned off.

SFA37S6K219B-F film capacitor also has good characteristics such as low leakage current, low dissipation coefficient, wide operating temperature, etc. The anode and the cathode of the capacitor are wrapped by two layers of PP film material with excellent dielectric properties. The capacitor reaches a high capacitance even in a application condition of 5kHz frequency, and also exhibits good temperature characteristics. If the capacitance is compared to an electrolytic capacitor, it can be an excellent choice for applications that require an relatively large capacitance and low leakage current.

In conclusion, there are a variety of applications fields for SFA37S6K219B-F film capacitor, ranging from major industrial and civi digital products to telephones and network communication equipments. Its small size, wide operating temperature range, long-term stability and moisture resistance are the features that make it favorable for these applications. And the working principle for the capacitor is based upon storing electrical energy between two electrodes which are insulated by a PP dielectric material. The characteristics of SFA37S6K219B-F capacitor, such as its low leakage current, low dissipation coefficient and wide operating temperature, made it an ideal choice for high-frequency electronic apparatuses.

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