BFC247990139

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Film capacitors are the oldest type of capacitor made from plastic, paper, or foil. They are an important component in many electrical and electronic circuits and have a wide range of commercial applications. BFC 247990139 is a film capacitor used mainly for power supply applications. It has a low impedance, good temperature stability, and high ripple current handling capability.

The capacitance value of BFC 247990139 is typically 47µF and it has a voltage rating of 400V. The capacitance is specified at 400Hz, and the life expectancy is 50,000 hours. It has a dielectric type of polyethylene terephthalate film (PET alloy) and a case size of 6.3mm x 11mm. The operating temperature range is from -40°C to +85°C. It also has an excellent self-healing property, which means that it will Repair itself in the event of damage to its dielectric or internal structure.

The main application of BFC 247990139 is as an energy storage device for power supply circuits. It is used for signal filtering, power factor correction, and input/output smoothing in motor control, DC-DC power converters, and power supplies. It is also used as a snubber in variable speed drives, relay circuits, and brake circuits. The capacitor eliminates noise and transient spikes, and also reduces the voltage through its high dip current from a transistor power supply.

The working principle of BFC 247990139 is based on Faraday’s law of induction. When an electric potential is applied across its terminals, an electrical field is created in the dielectric material between the plates. This field causes the dielectric material to polarize molecules and store energy. The stored energy is then released back into the circuit when the potential is removed, thus allowing the capacitor to act as an energy storage device.

In summary, BFC 247990139 is a film capacitor used mainly for power supply applications. Its main application is as an energy storage device for power supply circuits. It has a low impedance, good temperature stability, and high ripple current handling capability. The working principle of the capacitor is based on Faraday’s law of induction, where an electrical field causes the dielectric material to store energy, and the stored energy is released back into the circuit when the potential is removed.

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