Film Capacitors

Film capacitors employ a plastic film as the dielectric medium, separating two metal plates in order to store an electrical charge. The use of Mylar film helps to make film capacitors temperature stable and resistant to environmental influences. This feature along with thin layers of aluminum, which can be around 1000 times thinner than other aluminum-based capacitor types, allows for a greater amount of capacitance in a more compact size.

MKP386M439250JT2 Application Field and Working Principle

The MKP386M439250JT2 has application primarily in the electronics industry. This durable, compact capacitor features a dielectric medium of Metallized Polypropen Film, and its capacitance and current handling capabilities are ideal for use in power supplies, filters, and power converters. The MKP386M439250JT2 can also be used as a bypass capacitor for electronic circuit protection.

The working principle of the MKP386M439250JT2 is similar to that of other film capacitors. Two metal plates separated by a dielectric film are suspended in an electrolytic material, which serves as the capacitor’s insulation. When voltage is applied to the plate terminals, electric charge is stored between the two plates and the electrolytic material. This charge serves as a buffer between the two conducting pieces, preventing an electric current from passing through them and providing capacitance.

The internal structure of the MKP386M439250JT2 is composed of two layers of non-inductive metallized polypropylene film dielectric for low dissipation factor and low self-inductance. This feature, along with the high dielectric constant and low loss rate, make it an ideal choice for power supply and filter applications.

The anode of the MKP386M439250JT2 is made of a solid metal foil that utilizes slip end terminal contacts for ease of installation. The cathode is constructed of an electrically-conductive layer with a nickel barrier layer, also utilizing slip end terminal contacts. The case is made of a plastic polymer to protect the two metal plates from mechanical forces, and it also dissipates heat, allowing the capacitor to work at cooler temperatures.

The MKP386M439250JT2\'s temperature stability, high capacitance, and small-sized design make it a great choice for a number of electronics applications. Its rugged construction and reliable performance make it a reliable and cost-effective choice for any use.