BFC237518821

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.630" (16.00mm)
Size / Dimension:	0.571" L x 0.217" W (14.50mm x 5.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	KP/MKP 375
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	630V
Voltage Rating - AC:	300V
Tolerance:	±5%
Capacitance:	820pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Film capacitors are generally divided into three categories, including polyester film capacitors, polypropylene film capacitors, and polystyrene film capacitors. BFC237518821 series belong to polyester film capacitors. These capacitors are widely used in bypass circuits, filtering applications and circuit AC coupling applications, and also suitable for high frequency and pulse circuit.

Application Field of BFC237518821

BFC237518821 polyester film capacitors are equipped with anti-flammability cases, capable of withstanding reflow soldering at high temperatures up to 260℃. BFC237518821 is particularly applied to various fields, such as automotive audio&lighting products, office equipments, TV sets and other home audio-visual equipments.

Working Principle of BFC237518821

BFC237518821 film capacitors work by exploiting the dielectric properties of a long strip of special conductive film deposited on the foil electrodes. When two conductors are connected to two foil electrodes, an electrical double layer is formed between them. The film capacitor functions as if the electrical double layer or dielectric is put in between the two electrodes. In operation, the electrical charge or voltage applied to the capacitors affects its capacitance or capacitive reactance. The resistance and inductance in the capacitor are fixed except at very high frequency applications. The capacitors with different values are obtained by varying the length of the central dielectric. Contrary to the material properties, the capacity of the film capacitor is usually higher than other types of capacitors.

Conclusion

This paper discussed the film capacitor, a type of capacitor widely used in bypass circuits, filtering applications and circuit AC coupling applications. The BFC237518821 series is a special polyester film capacitor with high capacity, capable of withstanding reflow soldering at high temperature up to 260℃. The working principle of this type of capacitor is described, it works by exploiting the dielectric properties of the long strip made of special conductive film. Its capacity can be varied by the length of the dielectric. The application fields of BFC237518821 are also reviewed, it is suitable for automotive audio&lighting products, office equipments, TV sets and other home audio-visual equipments.

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