Operating Temperature:	-40°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:	0.728" L x 0.236" W (18.50mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	ECQ-E(F)
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	--
Tolerance:	±5%
Capacitance:	0.68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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ECQ-E2684JFW Application Field and Working Principle of Film Capacitors

Film capacitors are a type of capacitor that consists of several layers of thin film material. This film material is typically made out of polyester, polypropylene, polycarbonate, or polyester-polycarbonate. Film capacitors are widely used in electronic circuits, including audio, control, and power supplies. In this article, we will discuss the application field of film capacitors and its working principle.

Application Field

Film capacitors are used in several applications across different industries. The most common type of film capacitor is the polyester-polycarbonate film capacitor, commonly abbreviated as ECQ-E2684JFW. This type is widely used in applications such as power supply rectifiers, filters, AC circuits, and PFC converters. It is a high-capacitance and low-cost solution for many applications.Film capacitors are also used for applications such as motor drives, relays, motor controls, and low-level audio applications. They can be used in audio circuits, home theaters, and other consumer electronics systems. Additionally, film capacitors are also used in instrumentation and aerospace equipment.

Working Principle

The working principle of film capacitors is based on the use of multilayered, thin films. In a film capacitor, two (or more) layers of thin-film material are separated by dielectric material. When a charge is applied to the capacitor, the electric field created by the charge causes electrons to move from one film to the other. This results in a rise in voltage between the two layers of film.The dielectric material used in film capacitors can vary greatly, depending on the application and desired results. Common types of dielectric materials used in film capacitors include polyester, polypropylene, polycarbonate, and polyester-polycarbonate. Each of these materials has a distinct dielectric constant, which determines the amount of voltage a capacitor can handle.Film capacitors are also known as film-dielectric capacitors and metalized film capacitors. In this type of capacitor, one of the films is usually metalized, while the other is usually non-metallic. This is done to create a lower impedance in the capacitor.

Conclusion

Film capacitors are widely used in a variety of electronic applications. The most common type of film capacitor is the ECQ-E2684JFW, and is used for power supply rectifiers, filters, AC circuits, and PFC converters. Additionally, film capacitors are used for motor drives, relays, motor controls, and low-level audio applications. The working principle of film capacitors is based on the use of two (or more) layers of thin-film material separated by a dielectric material. The dielectric material used can range from polyester to polyester-polycarbonate. Film capacitors are also known as film-dielectric capacitors and metalized film capacitors.

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