MKT1813447254G

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Film Capacitors

Film capacitors are a type of specialized capacitor manufactured from multiple layers of thin films deposited on an insulating substrate. The MKT1813447254G film capacitor is a three-layer polyester film capacitor with radial leads and a low profile. It is commonly used in audio and filter circuits in a variety of electronic and industrial applications.

Applications

The MKT1813447254G film capacitor has a wide range of applications, including power supplies, motor drives, lighting, switching circuits, and industrial controllers. It is also commonly used in audio and filter circuits for radio frequency signal filtering, noise reduction, and impedance matching. Additionally, these capacitors are popular with radio enthusiasts who use them for signal synchronization.

Construction

The MKT1813447254G film capacitor is constructed with three layers of polyester film with two parallel electrodes. The capacitance of the device is determined by the materials and spacing between the conductive electrode and the insulating substrate. The leads are formed with cable and are insulated temporarily with a dissolving lacquer. The device also includes an end cap for protection and insulation.

Working Principle

Film capacitors operate on the principle of electrostatic energies between two conductors and an insulating material. When voltage is applied to the capacitor, a positive charge builds up on one electrode and a negative charge builds up on the other. The insulating material between the two electrodes creates an electrostatic field which stores the energy. The primary benefit of these capacitors is their ability to operate over a wide range of frequencies, from DC up to UHF.

Advantages

The MKT1813447254G film capacitor is known for its dimensional stability and high capacitance. It also has a wide temperature range, with a rated operating temperature of -40°C to 85°C. Additionally, compared to ceramic or electrolytic capacitors, these capacitors are physically smaller and more resistant to vibration and shock. Due to these features, the MKT1813447254G is widely used in demanding applications such as medical devices and aerospace.

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