BFC2370GE821

Operating Temperature:	-55°C ~ 105°C
Features:	Long Life
Ratings:	AEC-Q200
Applications:	Automotive
Lead Spacing:	0.200" (5.08mm)
Termination:	PC Pins
Height - Seated (Max):	0.315" (8.00mm)
Size / Dimension:	0.283" L x 0.138" W (7.20mm x 3.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKT370
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	630V
Voltage Rating - AC:	220V
Tolerance:	±10%
Capacitance:	820pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film Capacitors or film dielectrics, are leaded and surface-mounted electronic components. This type of capacitor uses a variety of polymeric films as the dielectric material, including polyesters, polystyrenes, polypropylenes, and other polyethylene naphthalates. FEIC’s BFC2370GE821 is a film capacitor designed especially for automotive applications. The capacitor utilizes a metal film construction with a segmented aluminum foil dielectric to provide a high dielectric strength and stable electrical properties.

Application Field

The BFC2370GE821 is a surface-mount AEC-Q200-compliant capacitor that meets the stringent standards for automotive use. It is designed for common-mode and differential-mode filtering on CAN-Bus communication lines, and for EMI suppression in various drive systems and on-board power supplies. The capacitor is also suitable for audio applications, such as in power line filters, crossovers, and audio amplifiers.

Working Principle

The BFC2370GE821 is a metal-film capacitor which utilizes segmented aluminum foil as a dielectric. The segments are separated by a thin layer of polyester in between them. This combination creates a film dielectric that has a high dielectric strength and extremely stable electrical properties. As an example, the capacitor has an insulation resistance of 100 mega-ohms, a capacitance range between 47pF to 13nF, and a voltage range from 200 volts to 3000 volts.When energy is applied to the capacitor, electrons flow between the two terminals. The electricity causes the dielectric to become charged, and this creates an electric field in the surrounding area. This field stores the energy, which is discharged when the electric potential is removed. This process is repeated each time the capacitor is charged and discharged, creating an alternating current (AC) signal in the connected circuit.

Conclusion

The FEIC BFC2370GE821 capacitor is designed for use in automotive and audio applications. It utilizes a metal film construction with segmented aluminum foil dielectric to provide high dielectric strength and stable electrical properties. When electric potential is applied, the dielectric becomes charged and creates an electric field which stores the energy. This electric field then discharges again when the electric potential is removed, creating an alternating current (AC) signal in the connected circuit. The BFC2370GE821 is a reliable, high-performance capacitor for use in a wide range of applications.

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