BFC246864824

Film Capacitors

Film capacitors, more commonly known as plastic film capacitors, film dielectric capacitors, polypropylene film capacitors, paper capacitors, or even simply film caps, have become one of the most ubiquitous electronic components today. There are many advantages to using film capacitors—they’re smaller than alternative capacitors, they’re cheaper, and they provide excellent electrical insulation and heat resistance.

BFC246864824 film capacitors are a new series of 3-layer plastic film capacitors by Sanyo. The capacitors are constructed using two dielectric layers of ferroelectric polypropylene film (PPF) with a core of copper-clad aluminum (CCA) foil. The foils are thermally bonded together in a thin film of aluminum oxide.

Application Field of BFC246864824

The BFC246864824 series of film capacitors is designed for use in various applications such as power supply, consumer electronics, industrial, automotive, lighting, and telecommunication. The capacitors have a wide range of voltage ratings from 1.2V to 275V and temperature ratings from -40°C to +140°C. With its high dielectric strength and insulation resistance, the BFC246864824 is well suited to be used in high voltage applications. Due to its small size and excellent thermal resistance, it is suitable for automotive electronics and other applications that require tight space constraints.

Working Principle of BFC246864824

The BFC246864824 film capacitors use two dielectric layers of ferroelectric PPF that are thermally bonded together with a thin layer of aluminum oxide. The aluminum oxide layer plays a key role in creating the dielectric strength of the capacitors. When an electric field is applied to the capacitor, the aluminum oxide layer acts as an insulator, preventing current from flowing between the two metal electrodes and ensuring that the capacitor is well insulated.

The PPF dielectric layers have many advantages. Besides providing excellent insulation against electric fields, the PPF film also has great heat resistance that enables the capacitors to last longer even at extreme temperatures. Additionally, the PPF layer is also highly flexible, which allows the capacitors to be mounted in any direction and in a variety of shapes and sizes.

The CCA foil acts as the core of the capacitors. It is made from a combination of copper and aluminum that has been etched to create a conductive layer between the PPF dielectric layers. The CCA foil provides better conductivity and better overall performance than other common materials such as aluminum and tantalum foils.

Conclusion

The BFC246864824 series of film capacitors is an exceptionally versatile and high-performing component. With its high dielectric strength and resistance to heat, it is ideal for use in a variety of applications such as consumer electronics, automotive, industrial, and lighting. The film capacitor\'s use of two dielectric layers of PPF and a core of CCA foil provides excellent insulation and increased conductivity.