BFC247944563

Operating Temperature:	-55°C ~ 105°C
Features:	Long Life
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	0.492" L x 0.236" W (12.50mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP479
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	160V
Tolerance:	±5%
Capacitance:	0.056µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

BFC247944563 Application Field and Working Principle

Film capacitors, also known as PET, polyester, Mylar or PE for short, are non-polar low equivalent series resistance (ESR) capacitors, and are mainly used for coupling, bypassing and filtering applications in mid-to-high frequency circuits. The BFC247944563 series film capacitors are designed and manufactured for intents and purposes such as protection against transients, electricity load balancing, eliminating electromagnetic interference (EMI), and so on.

Description of Construction

The BFC247944563 series consists of two aluminum foil electrodes that are enameled by a polyethylene or polythelene terephthalate film, and are spread with a metallized coating. The size and capacitance of the film capacitors are determined by the thickness and area of the electrodes respectively. A self-healing dielectric is then inserted inside the capacitor for additional protection. After which, the electrodes and the dielectric are placed into pre-cut tubing for insulation.

Working Principle

The BFC247944563 film capacitors operate based on the principle of electrostatic field and capacitance. It stores electrical energy in the form of electrical fields in the internal dielectric material. This is done by changing the voltage across two conductors, otherwise known as the anode and the cathode. When an external voltage is applied to the anode of the capacitor, a voltage gradient is produced within the dielectric material. This voltage creates polarization within the dielectric material, and this polarization of the dielectric material stores the electrical energy present in the capacitor. The exterior insulation helps to keep the energy stored in the fields from dissipating despite the change in voltage. This is important to ensure that the electrical energy stored in the capacitors is not lost over time. The dielectric material of these types of capacitors also exhibit high insulation resistance, so they can remain reliably charged even after the applied voltage is removed.

Advantages

The BFC247944563 film capacitors have a few advantages that make them the preferred choice in certain applications.

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