SFA37S2K156B-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):	1.680" (42.67mm)
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:	2µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors are widely used in a variety of industries, such as communications, automotive, consumer electronics, and medical equipment. Among them, the SF37S2K156B-F is one of the most popular capacitors used for these applications. This article will focus on the application field and working principle of the SF37S2K156B-F film capacitor.

Application Field

The SF37S2K156B-F is a polyester film capacitor with an operating temperature range of -40°C to +105°C. This type of capacitor is mainly used in automotive, communications, consumer electronics, and medical equipment. For example, it is often used for grounding, energy storage, pulse loads, and power supplies.In automotive applications, the SF37S2K156B-F is used for transient suppression, circuit isolation, and energy storage. This type of capacitor is also used for radio frequency (RF) filtering in communication systems. In consumer electronics, the SF37S2K156B-F is used in laptops, mobile phones, and other small electronic devices. Its high insulation resistance and low leakage current makes it ideal for applications that require low noise, such as in audio and video equipment. In medical equipment, the SF37S2K156B-F is used for various power supply and signal processing applications.

Working Principle

The SF37S2K156B-F film capacitor is made up of two metal plates separated by a dielectric material such as polyester. The metal plates act as the capacitor’s electrodes. When a voltage is applied across the electrodes, a current flows through the capacitor, resulting in a shift in the electric field between the plates. This shift in the electric field is what is known as a “capacitance” - a measure of the capacity of the capacitor to hold a charge.The capacitance of the SF37S2K156B-F is determined by the thickness of the dielectric material and the area of the two electrodes. When a voltage is applied to the capacitor, the capacitance increases. Capacitors are used in circuits to temporarily store energy, which allows them to respond to changes in the applied voltage. For example, when the voltage is abruptly increased, the capacitor will absorb the sudden surge of energy and then slowly release it back as the voltage decreases. This helps to smooth out any sudden spikes or drops in voltage, making it more stable.

Conclusion

In conclusion, the SF37S2K156B-F film capacitor is a popular choice for a range of applications in the automotive, consumer electronics, and medical equipment industries. The working principle of a film capacitor is based on the capacitance between its electrodes, which changes as a voltage is applied across the capacitor. This allows the capacitor to store energy and release it as the voltage fluctuates, which helps to make the source voltage more stable.

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