T491B225K035AT4280

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	4 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	2.2µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

T491B225K035AT4280 is a type of tantalum capacitor commonly used in various applications. It is composed of two electrodes - an anode, and a cathode - separated by a dielectric, with the anode typically being formed from a layer of oxide-coated tantalum powder and the cathode being composed of an oxide-coated and pressed activation powder. The main advantage of this type of capacitor is its ability to work in a wide operating temperature range and its large storage capacity.

Application Field

T491B225K035AT4280 capacitors have a wide range of applications because of their high capacitance and good tolerance. These capacitors are used in DC-DC converters, power supplies, communication systems, and signal processing circuits. Moreover, they are suitable for computer memory backup, power supply filtering, signal coupling, and pulse bypassing. In addition, these capacitors can be used for military and aerospace applications, due to their excellent long-term stability.

Working Principle

The basic principle of how a T491B225K035AT4280 capacitor works is the same as any capacitor. It stores electrical energy by charging an electrical field between two conductors – the anode and cathode. When a positive or negative voltage is applied to the capacitor, a current of charge is immediately stored in the dielectric material between the two electrodes. Therefore, the capacitance of a capacitor is related to the area of overlap between the two electrodes and the dielectric material used. The capacitance of a T491B225K035AT4280 capacitor is typically around 220 nF. The other important property of the T491B225K035AT4280 capacitor is its ability to hold a charge over time. This ability is affected by the dielectric material. The dielectric used in T491B225K035AT4280 capacitors is an oxide-coated tantalum powder which is more conductive than other types of capacitors, and is able to store a charge for a longer period of time. Therefore, this type of capacitor is often used in applications where it is important to maintain a steady voltage for a long period of time. Additionally, T491B225K035AT4280 capacitors offer improved stability and reliability under harsh environmental conditions. This is due to their ability to operate in a wide range of temperatures. They are also resistant to chemicals, solvents, and moisture. Therefore, these types of capacitors are often used in environments where long-term stability is essential, such as military and aerospace applications.

Conclusion

In summary, T491B225K035AT4280 capacitors offer an outstanding solution for a wide range of applications: DC-DC converters, power supplies, communication systems, and signal processing circuits, as well as military and aerospace applications. They are an excellent choice for applications that require high capacitance and good tolerance, as well as long-term stability and reliability. The main advantages of this type of capacitor are its ability to operate in a wide range of temperatures and its high-capacity storage.

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