F1778447K3FLB0

Operating Temperature:	-55°C ~ 110°C
Features:	--
Ratings:	X2
Applications:	EMI, RFI Suppression
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.650" (16.50mm)
Size / Dimension:	0.689" L x 0.394" W (17.50mm x 10.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	F1778X2
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	630V
Voltage Rating - AC:	310V
Tolerance:	±10%
Capacitance:	0.47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors : Application Field and Working Principle A film capacitor (also known as foil capacitor or film dielectric capacitor) is a capacitor construction element primarily composed of thin film material. Film capacitors are widely used in a broad variety of electrical and electronic systems because of their advantages over other types of capacitors.F1778447K3FLB0, for example, is a multi-layer film capacitor with very high performance and long service life. It has a variety of applications, such as power modules, industrial automation, AC line filtering, motor drives, home appliances, communication systems, switches, transformers and electric controllers. Moreover, it is also suitable for demanding pulsed DC applications, at very high voltage ratings.Generally speaking, a film capacitor has numerous advantages over other types of capacitors, including high reliability, high insulation resistance, higher current and voltage capacities, and excellent temperature stability. In addition, it generally has unusually low losses as compared to other types of capacitors. This is because the dielectric strength of a film capacitor is superior to other types of capacitors, and the film itself provides good frequency characteristics and good surge voltage protection.The internal construction of F1778447K3FLB0 can be divided into two parts: the electrode and the insulation film. The electrodes are made of metalized aluminum foil, usually with an oxide layer on the surface to prevent oxidation. The insulation film is typically polypropylene, though other materials such as polyester or Teflon are also used. The internal construction of the capacitors provide them with excellent temperature stability and superior voltage and current capacities compared to other capacitors. Moreover, the wide contact area of the electrodes ensures good contact with the insulation film.In addition, the operating principle of a film capacitor is determined by its construction. It consists of two metal conductors separated by a dielectric material. When a voltage is applied to the metal conductors, electric charges will be accumulated on them, and it will form an electric field in the dielectric material. This electric field creates an attraction between the electrode and dielectric material, resulting in a capacitance.The performance of a film capacitor depends largely on the relative permittivity of its dielectric material, as well as on the thickness of the dielectric. The relative permittivity of a film capacitor’s dielectric material is dependent on its structure, and usually increases with higher temperature. Film capacitors also display higher current and voltage capabilities than other capacitor types.In conclusion, F1778447K3FLB0 is a high-quality film capacitor and is suitable for a variety of applications requiring high performance and long service life. It has many advantages over other capacitor types, including excellent temperature stability, high insulation resistance, higher current and voltage capabilities, and low losses. Its operating principle is significantly different from other capacitors, as it relies on the relative permittivity of its dielectric material, as well as on the thickness of the dielectric.

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