T521B105M050ATE200 Capacitors

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T521B105M050ATE200 is a type of surface mount tantalum-polymer capacitor manufactured by KEMET, a global supplier of capacitors and other passive components. The capacitor is based on a tantalum-dielectric construction, utilizing a combination of solid tantalum titles and a specifically designed polymer layer. It is designed to meet various demanding application requirements.

Tantalum-polymer capacitors offer a unique combination of performance and cost effectiveness. They are able to offer a range of capacitance values, a wide operating temperature range, excellent electrical stability, and low leakage current. Moreover, these capacitors are much smaller in size compared to classic technology capacitors, making them ideal for space-constrained circuit designs.

T521B105M050ATE200 provides a capacitance of 10μF, with a rated voltage of 50V DC. It also features a surge voltage of 2,000V for a duration of 2 seconds, and CV asymmetry of less than 10%. The capacitor also features a maximum operating temperature range of -55℃ to +125℃. In addition, it has an impedance of 393,7mΩ, a maximum dissipation factor of 0.15 at 1,000Hz, and a low leakage current of not greater than 0.5μA at 25℃.

T521B105M050ATE200 capacitors are mostly used in power supply decoupling and energy storage applications. It can be used in both AC and DC circuits, particularly in environments where high temperature, tight size and weight restrictions, low ESR requirements, and very low leakage currents are paramount. The capacitor is ideal for applications such as consumer electronics, automotive electronics, telecom systems, and handheld devices.

The working principle of T521B105M050ATE200 is based on the capacitance that develops between two conductive plates separated by an insulating dielectric. When a potential difference is applied across the plates, a positive charge is stored on one plate and an equal charge of the opposite polarity is stored on the other. This stored charge creates an electrostatic field that enables the capacitor to store energy and exhibit the property of capacitance.

The construction of T521B105M050ATE200 consists of a capacitor element and a lead frame attached to the board. The capacitor element is made up of multiple tantalum plates and polymeric material, which together form a dielectric layer. The polymeric material can be either a liquid or a solid material. The polymeric material helps to reduce the equivalent series resistance (ESR) of the capacitor, while the solid tantalum plates provide the dielectric layer that stores the charge. The lead frame is used to assemble the capacitor and attach the capacitor lead to the board.

In conclusion, T521B105M050ATE200 is a surface mount tantalum-polymer capacitor that offers a combination of performance, cost effectiveness, and space-constrained size. It is mostly used for power supply decoupling and energy storage applications, particularly in high-temperature environments with stringent size and weight restrictions. Its functioning is based on the capacitance that develops between two parallel plates separated by a dielectric layer composed of metal and polymeric materials.

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