ECQ-B1H121KF

Film Capacitors

A Film Capacitor, also known as Plastic Film Capacitor, is an electrostatic capacitor with a thin plastic film as the dielectric, often combined with paper or foil as electrodes. This type of capacitor is highly voltage-resistant, cost-effective, and most importantly, reliable. Film capacitors are found in a variety of applications ranging from electronics to telecommunications.

ECQ-B1H121KF Application Field

The ECQ-B1H121KF is a metallized polypropylene film capacitor, manufactured by Panasonic, and is designed for general purpose applications such as automotive, audio frequency circuits, switching power supplies, communication equipment, and electric circuits. The ECQ-B1H121KF also offers high voltage withstand ratings of up to 3kVac (voltage) and 5kVac (current).

Working Principle of the ECQ-B1H121KF

The working principle of the ECQ-B1H121KF is based on its construction. It is composed of a metal foil layer, which acts as the anode, and a small propylene film dielectric layer as the cathode. The form of the dielectric layer results from having an outer electrode and a conductive dielectric material, which also acts as an insulator. A Metallized Polypropylene Film Capacitor, such as the ECQ-B1H121KF, uses a thin layer of capacitive material that does not conduct electric current, which is sandwiched between two conductive layers. The two conductive layers are kept separated by a thin dielectric material, such as Propylene. This dielectric material acts as an insulator and prevents electrical current from passing through.

The electric current is stored within the capacitor, and the capacitance is determined by the dimensions of the capacitor. When an alternating current is applied to the ECQ-B1H121KF, the capacitance changes with frequency, and the electric current stored in the capacitor changes accordingly. Thus, the ECQ-B1H121KF is able to serve as an impedance transformer, transforming a low-voltage, high-frequency alternating current into a higher voltage, lower frequency pulse waveform.

The ECQ-B1H121KF has a unique construction, great insulation, and excellent capacity dispersal consistency, making it a great choice for applications requiring high frequency operations, such as capacitive dividers, noise cancellation, and automatic control.

Conclusion

In conclusion, Panasonic\'s ECQ-B1H121KF is an excellent choice for a metallized polypropylene film capacitor. It has a high voltage withstand rating, excellent insulation, and excellent capacity dispersal consistency. These characteristics make it ideal for a wide variety of applications where a reliable, cost-effective, and high voltage-resistant capacitor is needed.