T491D156K025AT4280 Capacitors

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.122" (3.10mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	1 Ohm
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±10%
Capacitance:	15µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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T491D156K025AT4280: Tantalum Capacitors

T491D156K025AT4280 is a type of capacitors made using tantalum, a rare, blue-gray metal found in the company ore coltan mainly in Africa. These components are used in various industries including automotive, aerospace, communications, and industrial applications to store electrical energy and protect electrical circuits. The main characteristics of T491D156K025AT4280 are high capacitance, high temperature rating, and long life span.

Application Field

T491D156K025AT4280 is used by many industries including automotive, aerospace, communications and industrial applications. They are optimal for use when high temperature, high capacitance and long life are required, such as in the automotive industry. In the automotive industry, these components are used in the control systems, power circuit designs, and interfaces between the power supply and the load. They are also employed in applications such as door controls, shock absorbers, ABS brakes, and power windows. In the aerospace industry, these components are used as they are able to operate in a wide temperature range, from -55°C to +125°C. This allows the capacitors to work in harsh and unpredictable environments without fail. In communications, T491D156K025AT4280 is used for its high capacitance, which allows for a larger amount of energy to be stored in the capacitor. This allows for more efficient communication systems to be created, as well as allowing for faster connection speeds.

Working Principle

T491D156K025AT4280 operates on a basic principle, similar to most other capacitors. It consists of two plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, electrons are attracted to the negative plate, and the resulting charge creates an electric field between the plates. The electric field strengthens as the voltage increases, creating a capacitance value that is higher than static capacitors. The dielectric material used in the construction of T491D156K025AT4280 is a tantalum oxide film. The film\'s thickness is determined by the voltage being applied to the capacitor, so if the voltage is increased, the thicker the dielectric film becomes. The stronger the electric field, the higher the capacitance of the capacitor. T491D156K025AT4280 are highly reliable and they also dissipate very little heat. This is because most of the energy stored in the capacitor is in the form of static, rather than free electrons. As such, the capacitor does not need external cooling and is often used in applications where heat dissipation is a major concern.

Conclusion

T491D156K025AT4280 is an ideal choice for high temperature, high capacitance, and long-term performance in many different industries. It is made out of tantalum, an extremely rare metal, and the dielectric material used is a tantalum oxide film, which is why it dissipates very little heat despite the high capacitance. The capacitors are used in automotive, aerospace, communications and industrial applications, and can handle any type of environment.

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