BFC230343225

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Film Capacitors

Film capacitors have been the parts of choice for many demanding applications due to their low-ESR, low-inductance characteristics. They are ideal for use in high frequency, high voltage, and high-temperature conditions. This type of capacitor utilizes a dielectric film which is sandwiched between two metallic conductive plates. This film is usually made from polyethylene or polypropylene, but it can also be made from polyesters, teflon, or Mylar.

The model BFC 230343225 is a film capacitor with a capacitance of 230µF, a voltage rating of 250VAC, and a surge rating of 4kV (peak). The BFC series is designed for use with electronic and electric applications, primarily in the medical and power supply markets. It offers a high-ripple current capacity, low ESR, halogen-free construction, and good temperature characteristics.

Working Principle

A capacitor works by storing electrical energy in an electric field between two conductive surfaces. This field is created by electrical charges stored on the plates. These charges are deposited on the plates as electrons and are repelled away from each other due to their opposite charges. This phenomenon is known as "capacitance".

When a voltage is applied across the two plates, it will cause a current to flow through the capacitor. The polarity of the current will depend on how the capacitor is connected in the circuit. As the capacitor charges and discharges, it produces a fluctuating current. This fluctuation creates the phenomenon known as "ripple current" which can be used to power different electronic devices.

Film capacitors are particularly suitable for applications where high-frequency counter acting noise is a problem, such as ballast circuits for cars, dimming lighting in building and for EMC applications. Due to the construction of the dielectric, film capacitors also have a very low equivalent series resistance, meaning that they can handle very high ripple current without altering the capacitance or creating any issues.

Application Field

The BFC 230343225 is suitable for a wide range of applications due to its low ESR and high current carrying capacity. It is often used in medical and power supply systems, such as cardiac pacemakers, EKG monitors, intraocular lenses, and high frequency resonant switching power supplies. It is also widely used in automotive electronics, telecommunications, audio-visual and lighting systems, and in consumer electronic products.

Additionally, film capacitors are often used in line filtering applications, where they reduce the effects of line-noise for small inverters. This type of capacitor is also used for lighting circuits, RV systems, and motor controls, as well as for high-voltage snubbers and energy storage applications.

In short, the BFC 230343225 is a high-quality capacitor suitable for a wide range of applications due to its ability to withstand high temperatures, high-ripple current, and its low equivalent series resistance. It is suitable for medical, automotive, telecommunications, and consumer electronics projects, as well as many other applications.

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