T540D337K006DH8510

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T540D337K006DH8510 tantalum - polymer capacitors (Ta-poly) are a type of capacitor that pairs a sintered anode of tantalum metal and an organic polymer cathode. Due to the combination of these two materials, Ta-poly capacitors have a greater mechanical strength, higher capacitance, superior temperature and voltage capabilities, and better polarisation properties than their tantalum and aluminium counterparts. As a result of their superior combination of electrical and thermal properties, they have found application in a wide variety of sectors.

Application Field

Ta-poly capacitors have applications across many sectors, including automotive electronics, consumer electronics, medical electronics, LED lighting, power supplies, military, defence, and aerospace systems. In automotive applications, the high temperature and vibration ratings of Ta-poly capacitors make them the perfect choice to use in DC-to-DC converters and high-frequency switching circuits. Cellphone charger circuitry, laptops, and other consumer electronics rely on their superior polarisation properties. Furthermore, Ta-poly capacitors have been used in medical equipment to provide noise reduction in sensing and signal conditioning circuitry.

Ta-poly capacitors are especially suitable for high-power applications. Their rugged construction, high capacitance, and high temperature handling capabilities make them ideal for industrial and power converters, such as, dc-ac sinusoidal inverters and industrial variable-frequency drives. Furthermore, as the current demands of cellular and other wireless communication systems are increasing, ta-poly capacitors are being used increasingly in the power amplifiers of these systems to improve efficiency.

Working Principle

Ta-poly capacitors work by storing electrical energy between their two conductive plates and their dielectric medium. When an electric source of alternating or direct current is connected to the two terminals of the capacitor, an electric charge is generated. This creates a potential difference or voltage across the capacitor’s terminals. The capacitor acts as a temporary storage tank for the electrical charge, and it is then dissipated over time on the capacitor’s discharge cycle.

The capacitance of Ta-poly capacitors is determined by the size and spacing between the plates, the voltage difference between them, and the capacitive behavior of their dielectric layer. The higher the capacitance, the more charge a capacitor can store at a given voltage. Ta-poly capacitors are also capable of withstanding higher voltages than traditional tantalum and aluminium capacitors, often in the range of 2-6V.

The polymer component of Ta-poly capacitors serves two main purposes. Firstly, it allows for a higher capacitance than a traditional tantalum capacitor. Secondly, it increases mechanical strength, reducing micro-fractures or short-circuits that could result in a sudden catastrophic failure. This is especially important for devices such as power supplies, which are exposed to frequent vibrations.

Conclusion

T540D337K006DH8510 Ta-poly capacitors are a capable and reliable component for a range of applications. They provide improved capacitance, higher temperature and voltage capabilities, and better polarisation properties than traditional tantalum and aluminium capacitors. Furthermore, the robust construction of Ta-poly capacitors makes them suitable for high-power applications and allows them to withstand higher voltages. As a result, they have found application in a wide variety of sectors ranging from automotive to medical electronics and LED lighting, and they are increasingly used in wireless communication systems.

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