B25856K1155K3

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Film capacitors, or plastic film capacitors, are widely used in the electronics industry. They are often used in oscillators, filters, coupling capacitors, and timing circuits, and can also be found in many consumer electronics such as TVs, radios, and smartphones.

The B25856K1155K3 is a film capacitor developed by Vishay, a major manufacturer of Film capacitors. It is designed primarily for use in resonant circuits and DC blocking applications at frequencies up to 200kHz, and to withstand a rated voltage of 7.5kVAC.

The B25856K1155K3 is a cylindrical capacitor that is 5mm in diameter and 11 mm long. It is constructed from a dielectric film consisting of two Mylar-based films sandwiched together with an alloy metallization layer. It is then shielded with tinned steel and a conductive self-healing epoxy coating to provide visual and electrical shielding.

At the two ends of the film of the B25856K1155K3 capacitor are metalized contacts for connecting the capacitor to the circuit. It is an axial-leaded, two-terminal capacitance element that is easily connected to a variety of types of vehicles and equipment. The B25856K1155K3 also features a wide range of capacitances from 100pF to 0.1µF. It also has a high insulation resistance of 1000MΩ ･ µF or higher, and is designed to operate over a wide temperature range from -55°C to +105°C.

The working principle of the B25856K1155K3 is fairly straightforward. As electrical charges are applied to the leads of the capacitors, they accumulate on the layers of the film, providing an electrical field between them. This causes electrical energy to be stored in an electric field between two metalized ends. The B25856K1155K3 capacitor then acts as a filter, allowing signals with particular frequencies to pass through, while blocking out signals of other frequencies.

This makes the B25856K1155K3 an ideal component for applications ranging from electronic filters for frequency selection, DC blocking, signal coupling, and resonance circuits. It can also be used in a variety of other applications, such as power factor correction, pulse-width modulation, and rectification circuits.

In summary, the B25856K1155K3 is a Film capacitor manufactured by Vishay. It can be used in a variety of applications, including oscillators, filters, coupling capacitors, and timing circuits. It has a high insulation resistance and can be used in temperatures ranging from -55°C to +105°C. Its working principle is based on storing electrical energy in a electric field between two metalized ends, allowing signals of a particular frequency to pass through while blocking signals of other frequencies.

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