B81122C1682M

Operating Temperature:	-40°C ~ 100°C
Features:	--
Ratings:	--
Applications:	EMI, RFI Suppression
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.472" (12.00mm)
Size / Dimension:	0.512" L x 0.236" W (13.00mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	B81122
Dielectric Material:	Polypropylene (PP)
Voltage Rating - DC:	--
Voltage Rating - AC:	250V
Tolerance:	±20%
Capacitance:	6800pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction of Film Capacitors

Film capacitors, also known as plastic film capacitors, are energy storage devices composed of two electrodes and one dielectric plastic film as the medium. It has a low loss and high insulation resistance in the frequency range of 0.1HZ-5MHz. According to the characteristics of the medium used, metalized polyester capacitors and metalized polypropylene capacitors are broadly divided.

Application Field and Working Principle of B81122C1682M

The B81122C1682M film capacitor is a type of metalized polyester film capacitor. It has a wide range of applications in radio frequency circuits, receiver circuits, and computer circuits. It is widely used in frequency conversion rectification circuits for voltage stabilizing, smoothing, and filtering.In terms of working principle, the B81122C1682M capacitor first stores the energy of the charging current, and then gives it to the blocking object when discharging. During the process, the capacitor blocks the direct current, while the alternating current flows through the capacitor in turn. The electric charge is stored in the dielectric material, which is used to remove the fuzzy and unstable signals when passing through. The specific working principle of the B81122C1682M capacitor is based on the Faraday law. When the ac voltage is applied between the two plate electrodes, an electric field is generated in the dielectric, which produces a dipole moment. The movement of the dipole produces a capacitance effect allowing the current to flow between the plates.

Advantages of B81122C1682M

The B81122C1682M film capacitor has numerous advantages that make it a preferred choice of many applications. First, the B81122C1682M capacitor has better frequency characteristics than other capacitors, which makes it an advantageous choice for high frequency applications such as radio and computer frequencies. It also has a wide temperature range from -55℃ to +125℃ which allows it to be used in various temperature conditions. Furthermore, it is self-healing, which means it has important surge voltage withstanding capability and will not cause serious damage to the circuit. Therefore, it provides stable performance and a higher level of safety.In addition, the B81122C1682M capacitor has high reliability and a long service life. This is due to its construction, which features a metallized polyester film as the medium and two flexible electrodes with a stable temperature coefficient. This ensures that the capacitor is capable of long-term use in harsh environments.

Conclusion

In conclusion, the B81122C1682M film capacitor is a highly reliable and widely used energy storage device. Its excellent frequency characteristics and high voltage withstand capability makes it very suitable for high frequency applications such as radio and computer circuits. Furthermore, its self-healing and good temperature performance provides a high level of safety and makes it more durable. Therefore, the B81122C1682M film capacitor is an ideal choice for many applications.

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