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Tantalum - Polymer Capacitors

T550B397M015AH4250 is a tantalum-polymer capacitor from the KEMET company. It is ideal for use in a number of power supply, audio, and medical applications due to its small size and low ESR. Its anode and cathode electrodes are made of high-grade tantalum powder. It also has an encapsulation material, which is a polymer that provides excellent electrical characteristics. The encapsulation material also allows for easier soldering.

Application Field

T550B397M015AH4250 tantalum capacitors are ideal for power supply, audio, and medical applications, especially in situations where size is a major factor. They are ideal for DC-DC converters, power supply filtering and pulse applications, audio crossover applications, and as bypass or decoupling capacitors. They can also be used in medical devices and instruments. The principal advantage of tantalum capacitors is their very low ESR, which helps to reduce ripple in power supplies and produces clearer audio.

Working Principle

Tantalum capacitors work on a principle similar to traditional electrolytic capacitors. Electrons are transferred between two electrodes, the anode and cathode, to create energy storage. The anode and cathode materials used in tantalum-polymer capacitors are made of high-grade tantalum powder. The anode material is typically anodized aluminum with a very thin tantalum dioxide layer in between. The polymer encapsulation material forms a capacitive element with the tantalum anode material and works as a dielectric. This allows for the storage of electrical energy through a process of charge displacement.

The T550B397M015AH4250 also features an internal over-voltage protection circuit which protects the capacitor from being damaged due to over-voltage conditions. It also features a high-temperature performance of +125°C for end-use applications such as those found in computers, printers, and other electronic devices.

Conclusion

T550B397M015AH4250 tantalum-polymer capacitors are a powerful choice for your power supply, audio, and medical applications. Its small size, low ESR, and high-temperature performance make it an ideal choice for a variety of uses. It has an internal over-voltage protection circuit which helps to prevent damage due to over-voltage conditions. Its anode and cathode electrodes are made of high-grade tantalum powder, and its encapsulation material provides excellent electrical characteristics. It is also easy to solder, making it convenient for use in applications that require a fast and efficient setup.

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