BFC247045223

Film Capacitors

Film capacitors are capacitors that use thin plastic films as dielectric material. They are also known as polymer dielectric capacitors or plastic film capacitors. Film capacitors BFC247045223 are notable due to their excellent linearity, low loss, low temperature coefficient, high-frequency response, low parasitic inductance, and low self-heating. Their non-electrolytic design makes them highly reliable. They are widely used in applications that need high precision, including signal conditioning and capacitive coupling.

Application Field

BFC247045223 capacitors are most often used in RF and microwave filters, precision pulse shaping circuits, and in antenna tuning. They often also find use as voltage drop compensators, coupling and decoupling capacitors, dynamic braking, de-noise in audio equipment, and power supply filter, among other applications.

Working principle

The dielectric material of a film capacitor is a thin plastic film. The film is then sandwiched between two electrodes making the outer electrodes of the capacitor. This is either done by rolling the film around itself resulting in capacitors known as tubular or rolled capacitors, or the film is wrapped around metal or ceramic cores. In any case, electrons are stored between the electrodes creating a capacitor with two parallel conductors. An alternating voltage applied to these electrodes is stored and increases the electric field between the electrodes. This electric field will induce a charge with the conducting electrodes of the capacitor.

BFC247045223 capacitors use metalized polypropylene film as the dielectric material. They have the highest temperature coefficient when compared to other film capacitors. The dielectric thickness of the BFC247045223 capacitor is only 2.3 microns, which allows them to have great frequency response. The metalized electrodes of the capacitor are designed to feedback charge across the dielectric, resulting in minimal losses, linearity, and low distortion in audio applications.

Since film capacitors are non-electrolytic and their construction does not involve any liquids, they are highly reliable. This makes them suitable for applications that include direct current. They also have a wide operating temperature range. The plastic films are also extremely resistant to corrosion, humidity and other environmental factors, which makes them ideal for applications requiring harsh conditions.

Overall, BFC247045223 capacitors offer excellent linearity, low temperature coefficient, and low loss making them a great choice for precision applications. They are also widely used in RF and microwave filters, antenna tuning, voltage drop compensators, and power supply filters.