SFP66T3K238B-F

Series:	SF
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	3µF
Tolerance:	±10%
Voltage Rating - AC:	660V
Voltage Rating - DC:	--
Dielectric Material:	Polypropylene (PP), Metallized
Operating Temperature:	-40°C ~ 70°C
Mounting Type:	Chassis Mount
Package / Case:	Radial, Can
Size / Dimension:	1.870" Dia (47.50mm)
Height - Seated (Max):	2.500" (63.50mm)
Termination:	Quick Connect, Disconnect
Lead Spacing:	0.810" (20.57mm)
Applications:	Motor Run
Ratings:	--
Features:	--

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Film Capacitors

Film capacitors are produced by winding alternating metal and dielectric layers on a special form and impregnating the assembly with an insulation compound. These capacitors are commonly specified because of their higher reliability and greater load capability over other traditional capacitor technologies. The film capacitor technology provides positive temperature coefficient (PTC) for ac line voltages, as well as higher ripple current ratings. In this article, we’ll discuss the application field and working principle of SFP66T3K238B-F capacitors.

Application Field of SFP66T3K238B-F Capacitors

The SFP66T3K238B-F capacitors are widely used across many different industries, from medical and military to industrial and consumer applications. These capacitors can be used in a variety of power control applications, including power factor correction, frequency control, power supply smoothing, and more. The SFP66T3K238B-F capacitors also feature a very low ESR, making them a great choice for increasingly sensitive signals that must retain their integrity throughout their working lifetime. The military and aerospace applications benefit from the tight tolerances and long life of SFP66T3K238B-F capacitors. These capacitors can also be used in power supplies, sensor-based applications, display applications, lighting applications, and in UPS circuits.

Working Principle of SFP66T3K238B-F Capacitors

The working principle of SFP66T3K238B-F capacitors is based on the electrostatic storage of energy. This means that they store charge in the form of an electric field between two conductive plates. When a voltage is applied across the two plates, the electrons in the plates move toward each other, creating a positive charge on one plate and a negative charge on the other. As the voltage increases, the electric field between the two plates also increases, allowing more current to flow for a given voltage.The key to the working principle of SFP66T3K238B-F capacitors is the dielectric or insulation material. This material is used to insulate the charges between the two plates. The dielectric permits current to flow between the two plates, while still preventing leakage of the charges. It also allows the capacitor to hold the charge for a given period of time, allowing it to provide power over a period of time.

Types of Film Capacitors

Film capacitors come in a variety of shapes, sizes, and ratings. The two most common types of film capacitors are polypropylene and polyester. These two types of capacitors are usually non-polarized, meaning that they don’t have a positive and negative terminal. As a result, they can be used in either circuit application and are generally better suited for high frequency use.Polypropylene capacitors are usually found in power supplies, DC and AC motors, and broadcast systems. They typically feature a lower dielectric absorption and are usually specified where size and weight are important. Polyester capacitors are usually found in consumer applications and are often specified where extended life and low temperature characteristics are important. They typically feature a higher dielectric absorption and can be used in applications that require high temperature stability.

Conclusion

The SFP66T3K238B-F capacitors are a type of film capacitors that are used in a variety of applications, ranging from military and medical to industrial and consumer applications. These capacitors offer a high level of reliability and can handle fairly high levels of current. Because of the tight tolerances and long life of these capacitors, they can be used in applications that require precision and durability over the long-term, including power factor correction, frequency control, and power supply smoothing. The working principle of these capacitors is based on electrostatic storage of energy, with dielectric materials being used to insulate between the two plates. In addition, there are two main types of film capacitors, polypropylene and polyester, that offer different benefits depending on the application.

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