T97F226K063LAA

Series:	TANTAMOUNT®, T97
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	22µF
Tolerance:	±10%
Voltage - Rated:	63V
Type:	Conformal Coated
ESR (Equivalent Series Resistance):	250 mOhm
Operating Temperature:	-55°C ~ 85°C
Lifetime @ Temp.:	--
Mounting Type:	Surface Mount
Package / Case:	3024 (7660 Metric)
Size / Dimension:	0.299" L x 0.236" W (7.60mm x 6.00mm)
Height - Seated (Max):	0.201" (5.10mm)
Lead Spacing:	--
Manufacturer Size Code:	F
Ratings:	COTS
Features:	High Reliability
Failure Rate:	--

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Tantalum Capacitors

Tantalum capacitors are the most popular commercially-available electrolytic capacitors. They offer higher capacitance and lower ESR than ceramic or aluminum electrolytic capacitors, and are suitable for use in both analog and digital applications. The T97F226K063LAA is a surface-mount, radial, non-polar, electrolytic tantalum capacitor that is typically used in DC-to-DC converter applications.

Construction and Operation

Tantalum capacitors are composed of two electrodes and an electrolyte. The electrolyte forms an oxide film on the surface of the tantalum anode, which serves as the dielectric. The crossed section of a typical radial tantalum capacitor looks like a rectangular "straw", with the anode in the center and the outer semiflexible cathode wrapping around it. The cathode is typically made of a manganese dioxide-coated metal plate. The T97F226K063LAA package is rated to withstand up to 10 volts for up to 1000 hours of operation.When a voltage is applied to the electrodes of the capacitor, current flows between the electrodes according to the equation I=Cdv/dt, where I is the current, C is the capacitance, dv is the change in voltage and dt is the change in time. This causes an electric charge to build up on the surface of the anode and a corresponding charge on the surface of the cathode, thus forming an electric field between them. Thus, the capacitor becomes “charged”, or stores electrical energy.

Application Field and Working Principle

Tantalum capacitors are used in applications such as cellular phones, laptop and desktop computers, industrial electronics, and automotive electronics. The T97F226K063LAA is primarily used in DC-to-DC converter circuits, where it serves as a low-loss energy storage device. In such circuits, it is typically connected between the input and output terminals of the converter, usually in parallel with a series of other capacitors. When the input voltage is applied to the capacitor, it stores energy, while also smoothing and filtering noise from the input signal. The stored energy is then released back into the circuit when the input voltage is reduced or removed, allowing for a smoother transition within the circuit, and allowing devices to maintain their operation even in the event of voltage fluctuations. Tantalum capacitors also have the advantage of high capacitance-to-volume ratio, meaning that they can store a significant amount of energy into a relatively small package. Additionally, tantalum capacitors are largely immune to vibration and shock, and have low dielectric absorption and high stability.

Conclusion

Tantalum capacitors have become an invaluable tool in the modern electronics world, due to their high capacitance, low ESR, and small size. The T97F226K063LAA is a surface-mount, radial non-polar, electrolytic capacitor that is ideal for applications in DC-to-DC converter circuits, due to its ability to store energy and filter noise from input signals. The typical application of this capacitor is between the input and output terminals of the converter, where it helps maintain device operation even in the presence of voltage fluctuations. It also plays an important role in smoothing transitions between circuits, and can ensure the continued operation of devices in the event of power surges.

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