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Introduction to Tantalum - Polymer Capacitors

Tantalum – polymer capacitors (also known as Ta-Poly or \'Polymer Ta caps\') are a type of capacitor developed to offer higher levels of performance, reliability and safety compared to traditional tantalum capacitors. They are available in a variety of shapes, sizes and capacitance values, with common sizes ranging from 2.2 microfarads (uF) to 22 uF. Tantalum - polymer capacitors have a working voltage range between 2.5 and 8.7 volts, meaning they are ideal for use in automotive and truck applications, as well as applications where high levels of shock and vibration are encountered.

T541X108M2R5CT8705

The T541X108M2R5CT8705 is a particularly noteworthy example of a tantalum – polymer capacitor. It is a standard metallized polyurethane wound capacitor which provides superior performance in both low and high voltage applications. This particular model has a maximum working voltage of 8.7 volts, a capacitance of 1.2 microfarads (uF) and a maximum temperature range of -55°C to +125°C. It measures 8 x 5.4 millimeters and is one of the smallest available varieties.

Application Field

The T541X108M2R5CT8705 tantalum – polymer capacitor is particularly suitable for use in difficult working conditions. It can be used in applications subject to high levels of vibration and shock, high temperature, and low voltage operation. Such applications might include automotive and truck electronic systems, such as those used for fuel injection, ignition, cabin temperature control, and power window operation. It could also be used in other high-tech electronics, such as computers, cell phones, and medical devices.

Working Principle

Tantalum – polymer capacitors operate in much the same way as any other capacitor. They use an electrolyte to store electrical charge, which is released when the capacitor is energized. The main difference between tantalum – polymer capacitors and other types of electrolyte capacitance is the use of a polyurethane metallized winding. This winding provides greater efficiency than conventional powdered tantalum or electrolyte, which can become resistive and unreliable with time in certain working conditions.

The T541X108M2R5CT8705 uses an electrolytic solution that is highly resistant to breakdown, meaning it can operate reliably at high and low temperatures. This electrolytic solution also ensures that the capacitor is highly resistant to shock and vibration, and can offer improved performance in applications subject to these conditions.

Conclusion

Tantalum – polymer capacitors, and the T541X108M2R5CT8705 in particular, offer unparalleled performance in high and low voltage applications, as well as hostile working environments such as those subject to high levels of vibration and shock. Its small size, combined with its high-temperature-resistant electrolyte, and the remarkable stability provided by the polyurethane winding make the T541X108M2R5CT8705 an excellent choice for automotive, truck and computer applications.

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