T491C225K025AT7280

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	C
Lead Spacing:	--
Height - Seated (Max):	0.110" (2.80mm)
Size / Dimension:	0.236" L x 0.126" W (6.00mm x 3.20mm)
Package / Case:	2312 (6032 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	3.5 Ohm
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±10%
Capacitance:	2.2µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

T491C225K025AT7280 is a type of capacitor pertinent to the tantalum capacitor family. Capacitors, in general, are used to store electric charge. A capacitor, also called a condenser, is an electronic device that has two separate metal surfaces that enclose a dielectric material, where one metal surface is held at a more positive potential than the other. The dielectric material, through which the current flows, allows the charges to polarize, and sets up the potential difference between the two metal surfaces.

Application Field

Due to their higher volumetric efficiency and wide voltage range, tantalum capacitors are found in circuit designs in a wide range of applications. Some of the common markets and applications where tantalum capacitors are dominant include: Computers and Servers, Telecommunications, Industrial Electronics, Automotive Electronics, Aerospace and Defense, Medical Equipment, and Consumer Electronics. More specifically, in the telecommunications industry, where high voltage and reliable components are needed to handle signals, they are often used as snubbers and bypass capacitors in telephone lines and other communication systems. In the automotive market, they are used in ignition systems, and in industrial and other related applications, they are often found to be used in lighting circuits and instrumentation, for surge protection and for DC supply decoupling. In addition to these applications and many others, T491C225K025AT7280 capacitors have also been applied in high frequency oscillator circuits and resonant devices, such as phase-locked loop (PLL), quartz crystal oscillators, and RF filters.

Working Principle

When a voltage is applied across the capacitor, electric current flows in the circuit, and electric charge accumulates at the plates of the capacitor, creating an electric field between the capacitor\'s plates. The larger the applied voltage, the stronger the electric field between the plates, and the larger the capacitor will be able to store charge. When the applied voltage is taken away, the electric field between the plates will remain as long as there is still charge on the capacitors plates. This charge will act as a source of energy and is used to sustain electric current in the circuit. This current is known as the capacitor\'s residual charge, and it will continue to flow in the circuit until the capacitor is completely discharged. Once the capacitor has been completely discharged, the electric field between the plates will collapse and electric current will cease to flow, and the capacitor is no longer providing any energy to the circuit. This is the capacitor’s discharged state.

Conclusion

T491C225K025AT7280 capacitors are a versatile, reliable and compact device that is widely used in capacitor-based circuits. They have a higher volumetric efficiency and wide voltage range, making them ideal for a range of applications, from computers and servers to medical systems, automotive electronics and aerospace. By understanding the application field and working principle of T491C225K025AT7280 capacitors, engineers and technicians can more easily incorporate these devices into their designs.

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