SFC37T40K391B-F

Operating Temperature:	-40°C ~ 70°C
Features:	--
Ratings:	--
Applications:	Motor Run
Lead Spacing:	0.810" (20.57mm)
Termination:	Quick Connect, Disconnect
Height - Seated (Max):	4.030" (102.36mm)
Size / Dimension:	2.910" L x 1.910" W (73.91mm x 48.51mm), Lip
Package / Case:	Radial, Can
Mounting Type:	Chassis Mount
Series:	SF
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	370V
Tolerance:	±10%
Capacitance:	40µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Capacitors are basic passive components that store electrical energy. The film capacitor is an electrolytic capacitor that uses a film as an insulating medium. The SFC37T40K391B-F, a type of film capacitor, is widely used in automotive, telecommunications, consumer electronics, and other electronics fields. Its wide application is due to its cost-effectiveness, its low requirement for dielectric strength, the light weight of its components, and its durability.

Working Principle of Film Capacitors

A film capacitor, or a film dielectric capacitor, is a type of capacitor with two conductive surfaces separated by a thin insulating film called a dielectric. These surfaces are usually metal plates, but can also be conductive strips. The dielectric is often a Mylar-type material, a polyester or a polystyrene film. Some film capacitors also use a vacuum or air as the dielectric material.The dielectric film provides insulation and prevents the electrical current from leaking across the electrodes. This allows the capacitor to store a charge and release it when required. When electrical current passes through a capacitor, it generates an electrostatic field.When a potential difference is applied across the two electrodes, the charged particles will move along the electrostatic field and create an electric current. This current is then discharged, creating an electric field of the opposite charge across the dielectric material. The generated electric field produces an internal electric potential which produces a counter voltage, thus, a low dynamic impedance is formed across the two conductors.

SFC37T40K391B-F Application Field

The SFC37T40K391B-F is a film capacitor used for applications that require low internal impedance. It is well suited for power conditioning, signal filtering, timing, tuning, and high-frequency noise suppression.The SFC37T40K391B-F has a very low ESR and ESL rating. This makes it ideal for applications with high power demand, high-frequency noise, and high current handling. It is also resistant to moisture, dust, and other environmental impacts.The SFC37T40K391B-F is a great choice for applications in cars, media players, speakers, and TVs. It is also suitable for other consumer products, such as ovens, coffee makers, air conditioners, and refrigerators.

Benefits of Using SFC37T40K391B-F

The SFC37T40K391B-F offers a variety of benefits. Its low ESR and ESL ratings help reduce interference from other components. Its low leakage current and high capacitance makes it suitable for power conditioning applications. Moreover, its wide temperature range and long-term stability make it a great candidate for stable performance and reliable operation in high-temperature and high-stress environments.Furthermore, the SFC37T40K391B-F is a cost-effective solution. It is also lightweight and compact, which makes it ideal for a wide range of applications.

Conclusion

The SFC37T40K391B-F is an excellent choice for automotive, telecommunications, consumer electronics, and other electronics fields requiring low impedance. Its low ESR and ESL ratings, low leakage current, and high capacitance make it ideal for power conditioning, signal filtering, timing, tuning, and high-frequency noise suppression. Moreover, its wide temperature range and long-term stability ensure reliable performance in extreme temperatures. Finally, its cost-effectiveness and lightweight design make it an excellent choice for a variety of applications.

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