BFC236715474

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Film Capacitors

Film capacitors are non-polarized capacitors that are made from multiple layers of plastic film sandwiched together and sealed in a metal casing. The plastic film acts as an electrical insulator, while the metal shields the capacitor from external interference. Film capacitors are preferred by many circuit designers due to their low-cost, low frequency noise, wide range of capacitances, and excellent temperature and voltage characteristics.

BFC2-36715474 Application Field and Working Principle

The BFC2-36715474 series of film capacitors is a small and low cost aluminum capacitor, mainly used to in audio and power circuit switching and cable system. The capacitor is a bidirectional electric component, composed of dielectric, electrodes, terminals, and housing. The two electrodes are connected to the winding lead-out wires or the terminals and sealed in the aluminum casing. The dielectric medium is made of polypropylene film.

In theory, capacitors store energy in the form of electric fields. The electric field is created between two conductive materials when an electric charge is applied. The BFC2-36715474 series capacitors store energy by having two layers of conductive material that are separated by a layer of insulating plastic film. Both conductive layers are connected to two leads, and when a voltage is applied to one lead, an electric field is created between the two conductive layers. The electric field stores energy, and the amount of energy stored is determined by the capacitance value of the capacitor.

In an AC circuit, capacitors oppose current and can prevent or limit AC voltage fluctuations. A capacitor has the ability to absorb electrical energy for a short time before releasing it back to the circuit. Its capacitor characteristics enable it to filter out frequency, shape and differentiate signals. In audio applications, thismakes capacitors an ideal component for equalizing voltages and creating crossover filters. In power circuits, they are used in power factor correction and pulse rectification, power-up and voltage drop suppression.

In terms of power, the BFC2-36715474 capacitors has an insulation resistance greater than 10,000M and a temperature coefficient of less than 150pF. This enables these capacitors to cope with high voltage in the power switch circuit.

Moreover, the BFC2-36715474 capacitors are made of advanced electrodes with a high insertion loss, which enables them to withstand more than 4,000V high voltage and large current leakage to extend the service life.

The plastic casing is moisture-proof and tightly sealed. It prevents dust and other organic materials from entering, and is corrosion resistant, good insulation, able to withstand high temperatures and has a long service life.

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