SFA37S7.5K219B

Operating Temperature:	-40°C ~ 70°C
Features:	--
Ratings:	--
Applications:	Motor Run
Lead Spacing:	0.810" (20.57mm)
Termination:	Quick Connect, Disconnect
Height - Seated (Max):	2.310" (58.67mm)
Size / Dimension:	2.160" L x 1.310" W (54.86mm x 33.27mm), 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:	7.5µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors, also known as plastic film capacitors, foil capacitors, polyester capacitors and paper capacitors, are one of the most commonly used electric components in the electronic industry. The SFA37S7.5K219B belongs to this type of capacitor. This article will discuss the application fields and working principles of this kind of capacitor.

Working Principle

The SFA37S7.5K219B film capacitor consists of two metal electrodes that are insulated from each other by a dielectric film. The dielectric film is typically made of a plastic material such as polyester or polypropylene. This film capacitor works by storing electric charge when voltage is applied to it.When a voltage is applied, the electric field created between the two metal electrodes induces an opposing electric field in the dielectric film. This opposing electric field stores the charge. This process is known as capacitance. This capacitor is then able to store charge and release it when needed.

Benefits

Film capacitors have several advantages over traditional electrolytic capacitors. They are more compact, have higher temperature stability, and can handle much higher ripple current. The dielectric film also ensures excellent insulation between the electrodes. Most importantly, these capacitors are able to handle high levels of voltage, making them ideal for use in high voltage applications.

Application Fields

Film capacitors are widely used in a variety of applications, such as power supplies, filters, signal processing, waveform shaping, and other high voltage applications. They are also used in the automotive industry, in DC-DC converters, DC motor drives, and AC motor drives.In the medical industry, film capacitors are used in medical imaging systems, hearing aids, and medical device supplies. They are also used for filtering and energy storage in display systems.In the consumer electronics industry, film capacitors are used for power supply filters, clock oscillators, and other sophisticated signal processing applications.

Conclusion

Film capacitors, such as the SFA37S7.5K219B, are versatile components with a wide range of applications in the electronics industry. They are able to store large amounts of charge and can handle high voltages, making them ideal for high voltage applications. With their high insulation strength and durability, they are reliable components and can be used in a variety of applications.

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