T540D337M2R5CH8505WAFL

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Tantalum-polymer capacitors are used in a variety of applications, particularly in automotive, aerospace and industrial systems. The T540D337M2R5CH8505WAFL is a popular part of this capacitor family. This capacitor is part of the tantalum-polymer solid-state capacitors series. This series is designed to provide ultra-low ESR values, very good stability over temperature, and excellent load life performance. It is also compliant with many of the latest standards, including RoHS and J-STD-002 requirements.

The T540D337M2R5CH8505WAFL is designed to offer solutions for demanding applications requiring high ripple current, high CV and excellent capacitance stability over temperature. The capacitor has a total capacitance of 36 μF, a rated ripple current of 4.4 A, a rated voltage of 10 V and a capacitance tolerance of ± 20%. It is also highly reliable, as it has a tested endurance of 1000 h at 8.2mΩ and an approved, high temperature 105°C capacity stability at 0.7V. The maximum equivalent series resistance (ESR) is also very low, at 0.24 mΩ.

The T540D337M2R5CH8505WAFL is used in many applications, such as automotive, aerospace and industrial systems, as it offers high performance and excellent reliability. In automotive, it is used in applications such as engine control units, airbags and safety systems, as it is suitable for a wide temperature range and vibration conditions. In aviation, it is commonly used in applications such as GPS navigation and flight control systems, due to its high performance over temperature and reliability. In industrial applications, it is used for power supply stabilisation and motor control, due to its high ripple current and excellent capacitance stability.

The working principle of tantalum-polymer capacitors is based on their construction. The construction of these types of capacitors consists of an anode layer made of either a solid or a sintered tantalum powder form, and a dielectric or manganese dioxide layer which is enclosed by a conductive polymer in the cathode. These capacitors are also polarised, which means they can only be used in certain orientations.

When a voltage is applied to the capacitor, the capacitance is increased. This is because an electric field is created between the anode and the cathode, which causes the majority carriers (electrons) to move towards the anode, creating an electric dipole. This causes the anode to become more negative and the cathode to become more positive, which increases the capacitance.

As the current increases, the number of majority carriers also increases. This increases the electric field and further increases the capacitance. This is known as dielectric absorption. When the current is decreased, the strength of the electric field also decreases, and so does the capacitance of the capacitor.

The T540D337M2R5CH8505WAFL tantalum-polymer capacitors offer a range of advantages over other technologies, including high performance, excellent temperature stability and high reliable operation. Its use in automotive, aerospace and industrial applications make it a highly versatile capacitor for electronic design. Furthermore, its working principle, based on an electric field between the anode and cathode, makes it a reliable and efficient device for power and signal applications.

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