BFC246948154

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.728" (18.50mm)
Size / Dimension:	0.492" L x 0.189" W (12.50mm x 4.80mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKT469
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	160V
Tolerance:	±10%
Capacitance:	0.15µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to Film Capacitors

Film capacitors are electrical components used to store energy and control the release of energy in a circuit. They are typically cylindrical in shape and contain dielectric material between two conducting plates. Film capacitors are ideal for applications requiring high dielectric and temperature stability with repeatable performance. Some of the applications of film capacitors include AC motor applications, fluorescent lamp ballasts, and switching power supplies.

Function of Film Capacitors

Film capacitors are used for a variety of purposes. One of the most common reasons you will see them used is to store energy and control the release of energy in a circuit. This makes them ideal for AC motor applications, fluorescent lamp ballasts, and switching power supplies. They are also used to filter out high frequency components in audio and communications applications, as well as in general purpose decoupling and bypassing.

Construction of Film Capacitors

Film capacitors are generally constructed by winding layers of metalized plastic film between two plates of metal. This construction gives film capacitors excellent electrical characteristics such as high dielectric strength, high insulation resistance, stable capacitance with frequency, and low loss. The film capacitors also have a very low self-inductance.

BFC246948154 Application Field and Working Principle

The BFC246948154 is a type of film capacitor manufactured by Elna and is a “polyester” film capacitor. It is designed for use in inductive loads as well as applications where high dielectric stability is desired. The BFC246948154 operates on the principle of a dielectric material which stores the energy between two metal plates. It has a capacitance value of 0.47 µF and a voltage of 63V AC/DC.The working principle of the BFC246948154 involves the combination of a metalised dielectric material and two metal electrodes, which together create an electrical field. When a voltage is applied to the two electrodes, the electric field of the capacitor is charged up. The charged electric field can then store electrical energy and be used to deliver it back into the circuit as needed. The BFC246948154 is especially suited for AC motor applications, fluorescent lamp ballasts, and switching power supplies.

Advantages/Disadvantages of Film Capacitors

Film capacitors have many advantages, such as high dielectric strength, extremely low-loss and low self-inductance, high insulation resistance, stable capacitance with frequency, wide temperature range, and reliability. They also offer excellent load-handling capabilities and noise rejection. Additionally, film capacitors come in many different sizes and shapes, making them suitable for a variety of applications. The BFC246948154 is a great example of a film capacitor that is designed specifically for inductive loads and applications with high dielectric stability.The major disadvantage of film capacitors is their relatively low capacitance compared to other types of capacitors. This means that larger size capacitors are required for some applications. Also, because film capacitors are typically quite large they can be costly and difficult to install.

Conclusion

Film capacitors have become an increasingly popular choice for a variety of applications due to their high dielectric strength, low-loss, and stable capacitance with frequency. While they may not have the highest capacitance, their reliability and performance make them ideal for many AC motor applications, fluorescent lamp ballasts, and switching power supplies. The BFC246948154 is a great example of a film capacitor designed specifically for high dielectric and temperature stability.

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