T540B157K003DH8710

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T540B157K003DH8710 is a type of tantalum-polymer capacitors.

Tantalum-polymer capacitors are a relatively new type of capacitor to enter the market due to their high performance and low leakage current. They consist of two electrodes placed within a polymer film, with a tantalum salt electrolyte in between. This electrolyte acts as an electrical insulator, preventing any electrical current from flowing through the system. When an external voltage is applied across the two electrodes, a charge is stored within the polymer film, forming a capacitor.

Tantalum-polymer capacitors are rated according to their capacitance and operating temperature range. T540B157K003DH8710 contains a capacitance of 0.15 µF and is rated for a maximum temperature of +140°C along with an operating temperature range from -55°C to +125°C. This type of capacitor also features low leakage current and high ESR, electrostatic discharge, and thermal cycling characteristics, making it suitable for use in a wide range of applications.

One major application for the T540B157K003DH8710 capacitor is avionics. It is used within the power system of aircraft for its high temperature performance, low leakage current and high ESR characteristics. As aircraft power supplies operate in extreme temperatures and harsh environments, the capacitor must be able to withstand these conditions. In addition, its low leakage current ensures that the power system won’t suffer from any unexpected voltage drops or system failures due to current leakage.

T540B157K003DH8710 is also commonly used in automotive applications, specifically in 12v power systems including battery chargers and vehicle starters. Additionally, the capacitor is used in communications devices, data acquisition systems and industrial applications such as scada systems, where its low leakage current is beneficial.

The working principle of the T540B157K003DH8710 capacitor is quite simple. When a voltage is applied across the two electrodes, a charge is stored within the polymer film which forms a capacitor. The amount of charge stored is dependent on the capacitance rating of the capacitor and can be adjusted by changing the number of electrodes or the thickness of the dielectric. When the electricity or current is changed, the voltage stored in the capacitor’s dielectric is also changed, allowing for efficient energy storage.

To conclude, T540B157K003DH8710 is a type of tantalum-polymer capacitor with a capacitance of 0.15 µF and a maximum temperature rating of +140°C. It is suitable for use in harsh environments such as avionics and automotive applications due to its high temperature performance, low leakage current and high ESR. Its working principle involves holding a charge within a polymer film when an voltage is applied across two electrodes.

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