BFC247954154

Operating Temperature:	-55°C ~ 105°C
Features:	Long Life
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.650" (16.50mm)
Size / Dimension:	0.728" L x 0.295" W (18.50mm x 7.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP479
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
Tolerance:	±5%
Capacitance:	0.15µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

A film capacitor, also known as a plastic or dielectric capacitor, is a device composed of a thin plastic film coated with either an electrolytic or an insulating material. The BFC247954154 is a popular film capacitor used in applications including power supplies, motor controls, audio systems, and AC/DC converters.

Construction

Film capacitors are typically constructed from thin layers of metalized plastic film. The metal layer provides electrical conductivity while the plastic film acts as an insulator. The metal layer can be composed of either aluminum or zinc, depending on the type of application. The metalized film is then wound into a cylindrical shape and placed into a metal canister or sealed in a plastic case. The canisters or cases provide protection from moisture, dust, and other contaminants.

Working Principle

The working principle of a film capacitor is based on the electrostatic storage of electrical charge. When a voltage is applied across the terminals of the capacitor, the electrical charge is stored in the dielectric material between the metalized layers of the plastic film. The electrostatic storage of charge allows the film capacitor to store more electrical energy than an equivalent-sized electrolytic capacitor.

Applications

The BFC247954154 is typically used in applications where high-speed switching is required, such as power supplies, motor controls, and audio systems. It is also used in AC/DC converters and other electronic devices, such as video game consoles, consumer electronics, and medical equipment.

Advantages

Film capacitors offer a number of advantages over other types of capacitors, including:

• High capacitance-to-volume ratio
• High voltage-handling capability
• Low DC leakage current
• Low internal resistance
• Excellent stability over a wide range of temperatures

Disadvantages

Film capacitors have some drawbacks, including:

• Lower maximum operating temperature than some other capacitors
• Reliance on an external protective shell for number of function
• Orientation-sensitive performance
• Costlier than some other capacitors

In conclusion, the BFC247954154 film capacitor is a popular choice for applications requiring a fast-switching, high-voltage capacitor with excellent stability. While it has some drawbacks, its high capacitance-to-volume ratio and excellent stability make it a viable option for numerous applications.

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