B32620J681K

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Film capacitors, commonly referred to as "plastic capacitors", are one of the most commonly used capacitors in electronics today. B32620J681K film capacitors are a particular type of film capacitors designed for use in a range of applications, and they have the distinct advantage of providing high capacitance and high-temperature resistance. This article will discuss the B32620J681K film capacitor\'s application field and its working principle.

Application Field

The B32620J681K film capacitors are most commonly used in a wide variety of electronic circuits, both digital and analogue. They have found application in numerous industries such as telecommunications, automotive, audio/video, and medical. Popular applications include power supplies, DC-DC converters, onboard computer systems, and intelligent instrumentation.

In addition, due to their construction and properties, they are frequently used for coupling or decoupling capacitors, bypass capacitors, and antenna matching. These capacitors are also ideal for use in high-frequency switching power electronic circuits, low-voltage DC/DC applications, power supplies, and AC line filters.

The capacitance range of the B32620J681K film capacitors vary from 0.047uF up to 680uF, with a voltage rating of 105°C from 75V up to 630V, making them suitable for many demanding applications.

Working Principle

B32620J681K film capacitors are constructed from two metal plates with a dielectric material in between, the polyester film. These metal plates act as the capacitor\'s electrically conductive plates, while the dielectric material acts as the insulation between the two plates. When an electric current is applied to the capacitor, electrons accumulate on the positive plate, and the equivalent amount of electrons are drawn away from the other plate. Thus, a voltage differential is created between the two plates, and this in turn creates an electrical charge, known as capacitance.

The B32620J681K film capacitor also offers excellent temperature stability with a temperature coefficient of -55±10%. This temperature coefficient, also known as TCR or tan delta, is the measure of a capacitor\'s resistance to temperature changes and is a valuable factor when selecting a capacitor for an application where temperature fluctuations may affect performance.

The B32620J681K film capacitor also has the advantage of excellent dielectric absorption values which are typically better than 0.5%. This means that the capacitance of the B32620J681K film capacitor will remain stable regardless of the applied voltage.

Conclusion

The B32620J681K film capacitor is a highly versatile, efficient, and reliable choice for a variety of applications. With its wide range of capacitance, excellent temperature stability, and dielectric absorption values, the B32620J681K is suitable for use in a variety of electronic circuits, and it is an excellent choice for demanding applications.

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