BFC246857124

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Film Capacitors

Film capacitors are multi-purpose high frequency power electronic components. The film dielectric allows for low loss, high voltage and temperature insulation, as well as superior performance in high frequency versions. The BFC246857124 model is a film capacitor used in UHF applications, providing high power output and fast frequency switching capability, with little losses, along with an extended working temperature range.

A film capacitor is composed of two electrodes in close proximity, separated by a dielectric. This dielectric can be polyester, polypropylene, PTFE, polycarbonate, polyester or other materials. For a given dielectric, the capacitance of a film capacitor can be adjusted by controlling the size of the electrodes and spacing between them. In addition, the presence of two different materials in the structure of a film capacitor provides high stability and a high breakdown voltage.

As for the BFC246857124 model, it is a film capacitor made of polyethylene naphthalate (PEN) as the dielectric. This dielectric has superior electrical characteristics, allowing for low losses, high breakdown voltage and extended temperature range. The capacitor comes in an aluminum case with a self-healing epoxy resin coating.

In terms of applications, the BFC246857124 is designed to be used in UHF transmissions, providing broadband frequency coverage and fast signal handling. It can handle high power signals, making it a suitable choice for UHF database transceivers. It is also suitable for high frequency power converters and power amplifiers.

In terms of working principle, BFC246857124 comprises two ceramic substrates which have been etched in order to create an interdigital capacitance array. This interdigital capacitance array is responsible for providing the necessary capacitance for high frequency applications. The surface is then covered by thick film passivation layers and solder tabs. Upon application of a suitable voltage across the terminals, a dielectric field is created, which then stores energy, thus acting as a capacitor.

In conclusion, the BFC 246857124 model is a film capacitor specially designed for UHF applications, offering high power output, fast frequency switching capabilities and low losses. It offers a high breakdown voltage and temperature range along with its ceramic substrates and interdigital capacitance array. It is suitable for applications such as UHF transmitter and receiver, power amplifiers and power converters.

References:

1. Panasonic Global Components | Film Capacitors
2. Polyethylene Naphthalate (PEN) Film Capacitors

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