BFC237357334

Operating Temperature:	-55°C ~ 105°C
Features:	Long Life
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.728" (18.50mm)
Size / Dimension:	0.689" L x 0.276" W (17.50mm x 7.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKT373
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	220V
Tolerance:	±10%
Capacitance:	0.33µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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BFC237357334 application field and working principle

Film capacitors are capacitors with film dielectric. Generally, they are made of metal foil and plastic film which are made of polyester, polypropylene, polycarbonate, polyvinyl fluoride and polyalcohol plastics. Metal foil materials are usually aluminum, copper, stainless steel and so on. In the original material structure, two metal foils are separated by a layer of plastic film, and outer metal foil is usually connected to the base of the capacitor.

Application Field

Film capacitors are widely used in AC and DC circuits of low-voltage power electronic products, mainly for the purpose of filtering energy storage, AC and DC voltage stabilization, rectifying circuit smoothing, signal coupling filtering and other purposes.Film capacitors are widely used in AC and DC circuits with power less than 100KVA. For some audio frequency circuits, they can also output higher current. Film capacitors are widely used in electronic products in such fields as communications, instrumentation, industrial control, lighting, motors, security systems, medical equipment, and household appliances.

Working Principle

The film capacitor consists of two thin metal foils, and the condenser’s capacity is closely related to the dielectric medium between them. When a voltage is applied to the film capacitor, a very thin electric charge appears on the surface of the metal foils. The inner and outer foils will have a charge, forming an electric field, and the electric field stores energy.The electric field does not change until the capacitor is discharged. It is this strong electric field that allows the capacitor to store the energy between the two foil electrodes. When an external voltage is applied to the capacitor, the capacitor will charge and discharge the internal energy at high speed.

Conclusion

Film capacitors are widely used in fields such as communications, instrumentation, industrial control, lighting, motors, security systems, medical equipment, and household appliances. Its working principle is that the capacitor consists of two thin metal foils, and the condenser’s capacity is closely related to the dielectric medium between them. When a voltage is applied to the film capacitor, a very thin electric charge appears on the surface of the metal foils, forming an electric field, and the electric field stores energy.

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