185472J400RCB-F

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Film capacitors, also known as plastic film capacitors, are the most common type of capacitor. They are composed of two conductive plates that are separated by a thin dielectric film, usually made of polyethylene terephthalate (PET) or polypropylene (PP). 185472J400RCB-F is a type of film capacitors, and this article will discuss its application field and working principle.

Application Field

185472J400RCB-F film capacitors are mainly used in motor control, switch mode power supplies, decoupling circuits, and other high-frequency signal circuits for semi-conductor applications. They are also used in audio and video circuits, radio receivers, surge suppressors, filters, coupling, and bypassing circuits. In addition, they can be used in medical equipment, inverter systems, and power supplies for computers.

Working Principle

Film capacitors work on the principle of electrostatic field. The two conductive plates have a very thin dielectric film between them, and a voltage applied to one of the plates causes an electrostatic field to be created between them. This causes a separation of charge between the two plates, creating a potential difference. When the potential difference increases, the electric field strength in the dielectric film also increases, creating a capacitance equivalence between the plates. Capacitance is the ability of a device to store an electrical charge.

The capacitance of film capacitors is determined by the thickness and type of dielectric film that is used and the surface area of the plates. Generally, the thicker the dielectric, the higher the capacitance value. Certain types of film capacitors are designed to hold a relatively static capacitance under varying temperature and voltage conditions, known as "high"- temperature or temperature stable capacitors. Thin film capacitors are also available, with very low capacitance values and working temperatures.

In addition, the construction of film capacitors can include an EMI shield layer between the outer film layer and the inner electrodes. This EMI shield is designed to reduce interference from external sources, as well as from within the device itself.

Conclusion

185472J400RCB-F film capacitors are widely used in many different electronic applications and provide excellent performance. Their principal features include a high capacitance, low resistance, stability over temperature and vibration, and good EMI/RFI shielding capabilities. The material and design of film capacitors provide superior reliability in comparison to other capacitors, and they are widely used in both commercial and industrial applications.

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