BFC241904302

Film Capacitors

Film capacitors, otherwise known as plastic film capacitors, are capacitors which use plastic films as the dielectrics and often have a coating of metal electrodes consisting of metalized electroded film. They are stronger than ceramic capacitors and can range from a wide variety of types, each with its own characteristics. The BFC241904302 is one such type which has several unique traits that make it stand out from other film capacitors.

Application Field

The BFC241904302 film capacitor is regularly used in a variety of applications such as audio-frequency circuit, impedance matching, tone controls, low-cut filters, time-delay and led circuits, and many more such fields. It is efficient, compact, and reliable. It has insulation resistance of up to 30,000MΩ (at 20°C, DC 500V) to ensure great performance. The temperature range of this part reaches up to 105°C, however, it is dependent on the derating factor due to its thermal index. The thermal index for this model is around 300°C. Also, its capacitance value can be as low as 0.1μF and as high as 22μF.

Working Principle

The BFC241904302 capacitor uses a printed design on the metallized film as the terminals. The capacitance and dielectric are determined by the materials used in the metallized film. The metallized film used is a high quality polyester film which guarantees reliability and performance over long periods of time. The dielectric properties of the plastic film capacitor depend on the film thickness, distance between the electrodes, and the ambient temperature. This model has a high life expectancy of at least 2000 hours.

The plastic film capacitor generally has a lower electrostatic capacity than the ceramic capacitor, however it is more resistant against higher temperatures and is more reliable in operation. Plastic film capacitors use a polyester film as the dielectric material which gves it more reliability and a higher voltage rating. The BFC241904302 offers increased reliability due to its high operating temperature and insulation resistance. This makes it ideal for use in applications where stability and reliability are a necessity.