BN274L0474K--

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Film capacitors, also known as plastic film capacitors, are a type of capacitor that uses a film as the dielectric. This type of capacitor is characterized by its relatively low cost, high stability, and wide range of operating temperatures and frequencies. The BN274L0474K is one such film capacitor used in a wide variety of applications, from consumer electronics to industrial equipment. In this article, we will discuss the application field and working principle of the BN274L0474K.

Application Field of the BN274L0474K

The BN274L0474K is a film capacitor with a rated capacitance of 0.47μF and a voltage rating of 250V. It is designed for use in applications where high reliability and low noise levels are required. These include:

• Power supplies for computers and other electronic equipment
• Television receivers, VCRs, and other consumer electronics
• Electromagnetic interference (EMI) suppression
• Guitar amplifiers, loudspeakers, and other audio systems
• Automotive applications, including audio, ignition systems, and fuel pumps
• Telecommunication systems, including base stations and other equipment

The BN274L0474K is a preferred choice among film capacitors due to its low ESR, high capacitance, and long term stability over a wide temperature range. It has a small size and is well suited for use in electronic equipment with tight space constraints.

Working Principle of the BN274L0474K

The BN274L0474K is a polymer film capacitor that utilizes a dielectric material made of plastic film with two metal layers. When a voltage is applied to the capacitor, it creates an electric field that causes the electrons to move from one layer to the other. This creates a charge that is stored and can be discharged at any time when the voltage is removed. The capacitance of the capacitor depends on the thickness and dielectric constant of the film, as well as the surface area of the metal layers.

The BN274L0474K is designed to have an extremely low equivalent series resistance (ESR), which allows for higher levels of noise suppression and performance. In addition, the capacitor has a long life and is not affected by humidity or other environmental factors. It has a wide temperature range and can operate from -55°C to +105°C.

Conclusion

The BN274L0474K is a high quality film capacitor that is ideal for use in a wide range of applications. It is known for its high stability, low ESR, and reliable performance in extreme temperatures. It is well suited for use in power supplies, consumer electronics, automotive, and telecommunications systems.

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