Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.472" (12.00mm)
Size / Dimension:	0.689" L x 0.236" W (17.50mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MMKP383
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
Tolerance:	±5%
Capacitance:	0.082µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

BFC238311823 Application Field and Working Principle

Film capacitors, also known as capacitors utilizing metallized plastic films, are an important member of the family of capacitive components. Film capacitors as one of the main front members of the family, have earned widespread recognition and application in many applications, such as power electronic converters, switching power supplies, display panels and other DC blocking, AC coupling and filtering applications. BFC238311823 is the latest film capacitor developed and manufactured by Shenzhen Tianshu Technology Co., Ltd. The application and working principle of this film capacitor will be explained in this article.

Application Field

BFC238311823 film capacitor, with an applied voltage of up to 400V, is suitable for high-voltage DC basic insulation and motor capacitor type short-circuit and overload protection applications. Its rated voltage of 275VAC is suitable for power factor correction circuit, DC blocking, AC coupling and other various electronic circuit functions application. It also widely used as snubbers in energy-saving lamps and ballasts, medical equipment, electric power systems and other applications requiring low dissipation factor.

Working Principle

The BFC238311823 is a film capacitor whose structure combines a dielectric film and an electrode on both sides of the film. This unique structure makes the BFC238311823 film capacitor have excellent electrical properties and high insulation resistance. It is made of polypropylene film as the insulation layer between the two electrodes, which are metalized with aluminum on both sides. The core of the capacitor is a long, thin sheet filled with insulating particles and the lamination of the two electrodes make up the construction of these capacitors. This film capacitor is produced through a process called metallization, where the aluminum electrodes are deposited on both sides of the polypropylene film. When a voltage is applied across the two electrodes, an electric field is produced, leading to a capacitance between the two electrodes.The BFC238311823 is capable of the highest maximum working temperature of 85°C due to its aluminum-encased structures that effectively dissipates the heat and offers superior mechanical characteristics. The self-healing property of the BFC238311823 enables it to quickly recover from short-term overvoltage by automatically disconnecting the part of the dielectric film that has been damaged. This results in a less likely chance of failure in comparison to other types of capacitors. Besides that, the BFC238311823 film capacitor is highly reliable and stable, especially Capacitance tolerance ±5% and long-term stability at rated voltage is +15%/-15%(1000h).

Conclusion

The BFC238311823 film capacitor has some truly impressive features, as well as strong reliability and excellent performance. Its wide operating temperature range and high air side cooling makes it an ideal choice for high-frequency filter and high voltage DC blocking applications. With a maximum working voltage of 400V, it is suitable for various medium-power applications in fields such as medical, industrial, and aerospace. This article has only provided a brief overview of the product, and not all of the details, so it is advisable to refer to the product’s brochure for more technical details.

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