Operating Temperature:	-55°C ~ 85°C
Features:	--
Ratings:	--
Applications:	High Frequency, Switching
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	0.689" L x 0.335" W (17.50mm x 8.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP419
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	125V
Tolerance:	±2%
Capacitance:	0.22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

BFC241972204 Application Field and Working Principle

Film capacitors are components made of plastic films and electrical insulation. One of them, BFC241972204, is an axial-lead, polyester film capacitor, specially designed for the power supply, such as in a switching power supply and home electronics. It features high ripple current, low ESR, and long life.

Construction of BFC241972204

The physical construction of BFC241972204 mainly consists of several layers of plastic films and insulation. Firstly, it has two lead wires, one positive electrode and one negative electrode. It contains a metal shield, which has a lower dielectric absorption rate than other polytherene film capacitors. Secondly, the core is composed of polyester film and metalized foil. Thirdly, the structure is wrapped with a black non-woven fabric. The combination of all these layers can ensure the aluminum that the capacitor performs with high efficiency and low losses.

Application Field

The main application field of BFC241972204 is a switching power supply, which converts an AC power source to a DC source with high power efficiency. It is widely used in the production of home electronics, such as computers, TVs, and audio systems. And it is also used for electric motors, electronic controllers, and other power applications.

Working Principle

Film capacitors rely on the basic principles of electricity and magnetism, allowing it to store energy for current. When current is passed through the two electrodes, the rapid accumulation and release of electrons creates a potential energy difference between them. This potential energy difference is stored in the capacitance and is then used to release its energy rapidly whenever it is needed. It can also reduce the power supply ripple voltage or absorb power transient, to guarantee the stability of the power supply voltage and the noise immunity of electronic products.

Conclusion

In conclusion, the polyester film capacitor BFC241972204 is well suited for switching power supply, which has the advantages of high ripple current, low ESR, and long life. It has the properties to store energy, reduce the power supply ripple voltage, and absorb power transient. It is widely used in the production of home electronics, such as computers, TVs, and audio systems.

The specific data is subject to PDF, and the above content is for reference

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