474PMB122KBP2

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Film capacitors are capacitors that use plastic film as the dielectric. They are also referred to as film dielectric capacitors, polyester capacitors, or ceramic capacitors. The 474PMB122KBP2 is a polyethylene naphthalate (PEN) film capacitor. Its application field and working principles are described below.

What is a Film Capacitor?

A film capacitor consists of two conductive surfaces (usually metallic) with a thin dielectric material separating them. This dielectric material is often a sheet or film of plastic, typically polyester, polypropylene, or polycarbonate. These capacitors come in many shapes and sizes, including flat types, internal inducers, and tubular types.

Film capacitors are often designed to meet specific requirements, such as long life, high temperature operation, and resistance to shock and vibration. They have high capacitance, low ESR (equivalent series resistance), and low ESL (equivalent series inductance).

Application Field of 474PMB122KBP2

The 474PMB122KBP2 is a PEN film capacitor with an operating temperature range of -55 to +105°C. It is widely used in power supplies, clocks, modems, LEDs, solar panels, HVAC systems, medical equipment, electronics labs, and industrial control systems. It can also be used in circuits where reliable performance and high temperature operation is required.

The 474PMB122KBP2 has a dielectric strength of 17 kV AC, which makes it ideal for high voltage applications. It also has a low capacitance of 0.01 pF, which makes it well-suited for applications where low capacitance and low leakage currents are required.

Working Principle of 474PMB122KBP2

The 474PMB122KBP2 is a polarized, non-inductive type capacitor. It works by storing energy in the form of a charge between its two conductive plates. The electric field created between the two plates stores energy in the form of a potential difference, which is the capacitance. The capacitor is used to block the direct current in a circuit while allowing alternating current to flow between the two plates.

The 474PMB122KBP2 is a metallized capacitor, meaning that its two conductive plates are covered with metal films. This increases the capacitor\'s ability to store energy and its ability to withstand high temperatures.

The 474PMB122KBP2 also has a high voltage rating of up to 17 kV AC, which makes it suitable for circuits with high voltages. It has a low ESR and low ESL, which make it well suited for circuits requiring low capacitance and low leakage currents.

Conclusion

The 474PMB122KBP2 is a film capacitor that is specifically designed for use in demanding applications where high temperature operation and reliable performance are required. It is well-suited for use in power supplies, clocks, modems, LEDs, solar panels, HVAC systems, medical equipment, electronics labs, and industrial control systems. It has a high voltage rating of up to 17 kV AC, and a low capacitance of 0.01 pF. It also has a low ESR and low ESL, which make it well suited for circuits requiring low capacitance and low leakage currents.

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