BFC237590484

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):	0.689" (17.50mm)
Size / Dimension:	0.728" L x 0.217" W (18.50mm x 5.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	KP/MKP 375
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	2000V (2kV)
Voltage Rating - AC:	600V
Tolerance:	±5%
Capacitance:	110pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film capacitors, also known as plastic film capacitors, are composed of metallized plastic film and are widely used in electronic circuits. The BFC237590484 is one of the many film capacitor models available today. This section will discuss the application field and working principle of the BFC237590484.

Application Field

The BFC237590484 is a radial lead type metalized polyester capacitor with a capacitance of 0.47μF and a voltage rating of 400V. It is most commonly used in switch mode power supplies (SMPS) for power line filtering, DC capacitor filtering, and transmission circuits. The BFC237590484 has a low inductance design which results in improved frequency response and higher Ripple Current rating. Furthermore, thanks to its compact design and high reliability, the BFC237590484 is popular for applications in TV sets, computers, motors, air conditioners and many other electronics.

Working Principle

The BFC237590484 is a metallized film capacitor with a polyester or polyethylene dielectric, and is made from two metalized films with an insulating layer between them. The capacitor’s two plates are bifilar wound, meaning that they are wound together with one layer on top of the other so that they are parallel to each other from the start. This winding method reduces the inductance of the capacitor so that it is more suited to high frequency applications.The charge is stored on the metal plates, and the capacitance is determined by the surface area, plate separation and dielectric constant of the film. When an AC voltage is applied across the capacitor, current flows into the capacitor and a charge is stored on each of the plates. This causes the capacitance to increase, resulting in higher impedance to AC signals and a greater energy storage capacity.Additionally, the BFC237590484 features a self-healing properties, which enables it to recover from a short circuit. When a short circuit occurs, high temperatures are created that evaporate the dielectric materials, thereby re-establishing electrical connections between the two electrodes and restoring the capacitor to its original state.

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