B32652A1182J189

Film Capacitors

Film capacitors are electronic components used to store electrical energy and to permit the discharge of that energy in a controlled and predictable fashion. The most common types are made of a very thin film of electrically insulating material like polypropylene, polycarbonate, teflon, mylar, or paper. These films are then sandwiched between two electrical conductors or metal plates. The plates are connected to the outside of the film and provide the electrical contact for the capacitor.

B32652A1182J189 is an example of a film capacitor that is widely used in a variety of applications. It is a low-voltage vertical cartidge capacitor with a maximum operating temperature of 85℃. This capacitor is built with stabled aging characteristic and has a capacitance of 0.05 μF. B32652A1182J189 has a wide range of applications such as AC motor drives, switching power supplies, lighting ballast, and LED backlighting.

Working Principle

Film capacitors work on the principle of capacitance, which is the ability of a material to store an electrical charge. In a film capacitor, the outer metal plates are connected to the two terminals of the device. Between these two terminals, a thin film is sandwiched with very low leakage current. This film is made up of an insulator that prevents electrical current from flowing between the two terminals. When a voltage is applied across the terminals, the electric field between the plates causes electrons to move and accumulates between the plates. This accumulation of electrons creates a charge across the capacitor.

The capacitance of a film capacitor is determined by the distance between the plates, the thickness of the insulator, and the dielectric constant of the material. As the voltage is increased, the capacitance decreases. This is due to the high electric field between the plates that produces an electric displacement current that is counteracted by the surface charges on the plates. This surface charge increases with increasing voltage and decreases the value of the capacitance. The capacitive reactance also increases with increasing frequency.

Conclusion

B32652A1182J189 is a low-voltage film capacitor that is widely used in several applications. Its working principle is based on the principle of capacitance, where two metal plates are separated by an insulator. When a voltage is applied between the two plates, a charge accumulates between them and this creates a capacitance. The capacitance of the film capacitor decreases as the voltage is increased and is also affected by the frequency of the voltage. It is a popular choice for various kinds of applications, like AC motor drives, switching power supplies, lighting ballast, and LED backlighting.