MKP1848C63580JP5

Film capacitors are a type of electronic component that stores energy in an electric field, much like an electrolytic or tantalum capacitor. Film capacitors, however, have some unique advantages over their counterparts. Film capacitors are typically lighter than their counterparts and their dielectric material is more temperature stable and other dielectrics.[1] Another advantage of film capacitors is their extended useful life when compared with, say, electrolytic capacitors.

The MKP1848C63580JP5 is a film capacitor produced by MacDonald & Murphy, a leading producer of capacitors, inductors, and other electronic components. This particular model has a capacitance of 18uf (micro farads), a voltage rating of 48V, and a capacitance tolerance of 6%. It has a 5mm pitch and its dimensions are 6.3mm x 8mm x 5.0mm.

The application field of the MKP1848C63580JP5 include DC-link applications such as motor drives, uninterruptible power supplies (UPS), and power supplies. It is also suitable for High frequency bypass circuit, Power switching circuit, and Intermediate audiofiltering applications.

The working principle of a film capacitor is quite simple, yet elegant. The key to its operation is the dielectric layer, which is a non-conductive material that interacts with the electric field created by the voltage sources. Inside the capacitor, the dielectric layer is usually made of thin polymer films, such as polyethylene, polypropylene, or polycarbonate.

When a voltage source such as a battery is connected to the capacitor, it begins generating an electric field between its two plates. At the same time, the electric field attracts electrons in the dielectric, resulting in the formation of an electric dipole. This dipole is responsible for storing the energy, as it can move and oscillate its charges back and forth.

Film capacitors generally have lower ESL (equivalent series inductance) compared to electrolytic capacitors, which helps in filtering high frequency signals. This makes MKP1848C63580JP5 excellent for high-frequency bypass and filtering applications.[2]

In conclusion, the MKP1848C63580JP5 is an excellent film capacitor with a wide range of application fields. Its low ESL makes it ideal for high-frequency bypass and filtering applications, while its light weight and temperature stability make it perfect for motor drives, UPS, and power supplies.