T550B256K100BH42520100

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Tantalum-polymer capacitors are capacitors which are incorporated with tantalum and polymer materials. This makes them incredibly reliable, efficient, and also able to withstand a high temperature operating environment. This makes them highly sought after for use in many applications. The T550B256K100BH42520100 is a tantalum-polymer capacitor made by the Vishay Corporation and is a product which is used often in situations demanding a high temperature operating environment where the capacitor must remain reliable and efficient.

Application Field

The T550B256K100BH42520100 is particularly effective in applications requiring a high temperature and extreme vibration operating environment. These types of applications include automotive, industrial, robotics, telecommunications, and aviation. This capacitor has also seen some use in military and space exploration as well, thanks to its ability to operate in extremely hot and hostile environments. In addition, this capacitor is suited for applications which require larger sized capacitors, specifically those going beyond 50V and with a capacity of 100 µF.

The T550B256K100BH42520100 is capable of withstanding temperatures up to 200 degrees Celsius and frequencies up to the MHz range, fitting the needs of many applications requiring a capacitor in extreme operating conditions. This makes it ideal for use in temperature demanding processes like transistors and motor control as well as other applications where vibration and temperature tolerant components are required. It is also useful in medical imaging and measurements due to its ability to resist performance degradation due to high temperature and other electro-mechanical influences.

Working Principle

The T550B256K100BH42520100 is a hybrid capacitor which combines the robustness of a tantalum electrolytic capacitor with the extended life of a polymer capacitor. This combination gives the capacitor an unparalleled level of dependability and performance. The superior absorption power of the polymer materials allow for more extended life, greater reliability and higher leakage current resistance than a typical ceramic capacitor.

The capacitor consists of an anode layer in tantalum which is made out of tantalum typically supplemented by a Ta 2 O 5 dielectric. This Ta 2 O 5 layer gives the capacitor superior energy density and also allows for maximum leakage current resistance. This layer is further augmented by polymer materials which are added to the design in order to further improve the capacitor’s energy density and provide superior humidity, temperature and mechanical characteristics.

The thing that really sets this capacitor apart is its ability to produce high-stability temperature tolerant capacitance. This is because the dielectric properties of the tantalum layer and the polymer layer remain highly stable even at extreme temperature. This capacitor also has superior self-healing properties which allow the capacitor to still maintain the same level of performance even after some aberrant behavior.

The capacitor operates by sectioning of positive and negative charges inside the capacitor, which creates a potential difference between the anode and the cathode. This potential difference creates an electric field inside the capacitor. The strength of this electric field depends on the material with which the capacitor is made. In the case of the T550B256K100BH42520100, the dielectric properties of the combined tantalum and polymer layers allow for a highly stable and efficient electric field which makes the capacitor an incredibly reliable and efficient choice in applications which require a capacitor working in extreme conditions.

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