T540B686M004BH87107280

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Tantalum - Polymer Capacitors

The T540B686M004BH87107280 capacitor is a type of tantalum capacitors. These capacitors consist of tantalum pentoxide (Ta2O5) and an electrolyte or polymer to form the anode and cathode of a capacitor. The electrolyte, typically a solution based on polyethylene-oxide (PEO), acts as an ionic conductor between the anode and the cathode and provides outgassing protection.

Tantalum capacitors have a variety of properties that make them ideal for many applications. For instance, they feature very low ESR (equivalent series resistance) which means they are able to store more energy than other types of capacitors. They are highly reliable and feature high volumetric efficiency, allowing for the use of thin-film packaging. They also have a wide temperature range, up to +125°C and good performance over that range. These properties make them suitable for use in many different applications.

Application Field

Tantalum - polymer capacitors are versatile and can be used in a wide range of applications. The primary application for T540B686M004BH87107280 capacitors is in power supplies, DC-DC converters, switching regulators, and mobile devices such as smartphones, tablets, and laptop computers. They are also used in automotive, military, and aerospace applications, particularly high-reliability ones. These capacitors are also often used in audio equipment, such as amplifiers or high-end loudspeakers.

Working Principle

Tantalum - polymer capacitors work on the principle of charging and discharging of electric charge through a dielectric material. The dielectric material is made up of a tantalum pentoxide dielectric and an electrolyte solution of polyethylene-oxide (PEO). The capacitor is formed when two conductive plates, one an anode and one a cathode, are immersed in the dielectricmaterial. When a voltage is applied across the plates, electric charge builds up on the plates and stores the electricity. This stored charge can then be released in a controlled way to provide a current.

The main advantages of tantalum – polymer capacitors compared to traditional electrolytic capacitors are their low profile, low ESR, wide temperature range, and high volumetric efficiency. These characteristics make them suitable for use in many applications, in particular mobile and high-reliability applications.

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