SFBML5000470ZC0

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Feed Through Capacitors: SFBML5000470ZC0 Application Field and Working Principle

Feed through capacitors are designed for high frequency applications and for high power applications. The SFBML5000470ZC0 is an example of a feed through capacitor and its general application field and working principle.

Application Field

SFBML5000470ZC0 is a commercial grade feed through capacitor designed for use in RF applications in the range of 0.2MHz to 40MHz. This type of feed through capacitors are specially designed to reduce electromagnetic interference (EMI) in the broadcast, multimedia, medical and telecommunications industries. The capacitor is suitable for use in EMC/EMI applications.

SFBML5000470ZC0 feed through capacitor is low profile and its sizes range from 7mm x 15mm, 9mm x 18mm to 12mm x 24mm. It has a maximum capacitance of 470nF, provides an insulation resistance of 1000MOhm and voltage rating of 250 volts AC.

Working Principle

Feed through capacitors work by allowing signals to pass through, while blocking unwanted high frequency noise. This type of capacitor impedes the passage of AC currents while allowing direct or “dc” currents to pass. Feed through capacitors have two terminals, one of which is connected to the ground-side of the signal and the other terminal is connected to the signal-side of the power circuit.

The two terminals of the SFBML5000470ZC0 capacitor are connected via two metallic joints, soldered in a band pattern. This pattern of banding and soldering ensures ease of installation as well as providing an efficient filtering system. The two terminals are also connected by a high capacitance layer, constructed from layers of metal and dielectric. This layer acts as a filter, which impedes the passing of unwanted high frequency noise, creating a cleaner signal with less EMI interference.

Conclusion

The SFBML5000470ZC0 feed through capacitor is an effective component used in areas where EMI issue may arise. It is designed to provide a high quality of signal with low interference, suitable for use in RF applications, broadcast, medical, telecommunications and multimedia industries. Its working principle of two terminals connected via two soldered joints, held in a band pattern, ensures a reliable and efficient filtering system.

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