SFC37S30K291B-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):	3.030" (76.96mm)
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:	30µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

SFC37S30K291B-F application field and working principle

Film capacitors, or plastic film capacitors, are a type of capacitor that uses a thin plastic film as its dielectric. They have an electrode on each side of the film, and are commonly used in a variety of applications, such as AC power filtering, signal coupling, and bypassing. Film capacitors are often fitted with leads for easy replacement.The SFC37S30K291B-F is a film capacitor with a rated voltage of 630V DC and a capacitance of 30,000pF (µF). It is ideal for use in audio and video equipment, LED lighting systems, and power supply units. The capacitance tolerance is ±5%.Film capacitors are electrolytic capacitors, they are small in size and low in cost. They are popularly used for a variety of applications, such as AC power filtering, signal coupling, bypassing, and DC blockage. The use of film capacitors in power supplies is due to their ultra-low distortion performance, their self-healing capability, and their high temperature tolerance. They are also used for high-speed switching power supplies, as their high frequency performance is excellent.The SFC37S30K291B-F film capacitor has a non-inductive winding thickness, and is secured with sealed, corrosion-resistant material. It is an insulation-resistance safety certified capacitor with excellent self-healing performance. Its operating temperature range is from -55℃ to +125℃ and can even be used at high temperature >125℃ for short periods of time.Film capacitors employ a dielectric which is similar to the dielectric used in traditional capacitor technologies. This dielectric is much thinner than those used in electrolytic technology. This thin dielectric has a very low dielectric absorption and enables more energy to be stored in the capacitor. This low loss characteristic allows film capacitors to work in higher frequencies compared to electrolytic capacitors. Coupled with their excellent ripple current capabilities, film capacitors are the perfect choice for power supply applications.In summary, the SFC37S30K291B-F is a film capacitor with a rated voltage of 630V DC and a capacitance of 30,000pF (µF). It is widely used for AC power filtering, signal coupling, and bypassing applications in audio and video equipment, LED lighting systems, and power supply units. It has a non-inductive winding thickness, is constructed from sealed, corrosion-resistant material, and has an operating temperature range of -55℃ to +125℃. Its thin dielectric has a very low dielectric absorption and enables more energy to be stored in the capacitor. This low loss characteristic allows film capacitors to work in higher frequencies compared to electrolytic capacitors and provides excellent ripple current capabilities.

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