T494C226K020AT

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
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
Lifetime @ Temp.:	2000 Hrs @ 125°C
Series:	T494
ESR (Equivalent Series Resistance):	400 mOhm
Type:	Molded
Voltage - Rated:	20V
Tolerance:	±10%
Capacitance:	22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are solid electrolytic components designed for application in a vast range of DC and AC circuits. The common T494C226K020AT tantalum capacitor is usually chosen for applications requiring both high electrical reliability and high capacitance. It is available in surface-mount chip packages that range from 0.2”×0.2” to 0.6” ×0.6”. The capacitor features an anode terminal, cathode terminal, and outer wrapping, with a ceramic body and glass top.

Application Field and Working Principle

A T494C226K020AT tantalum capacitor can be used in a wide range of DC and AC circuits. Used primarily as storage components in high-frequency circuits, they can operate in both polarities and have the ability to low ESR, fast charge and discharge features.Tantalum capacitors consist of two electrodes and a dielectric material between them. The two electrodes consist of two pieces of tantalum, the anode and the cathode. The dielectric material is a solid electrolyte, usually tantalum pentoxide. When a tantalum capacitor is connected to a DC voltage source, the electrons will travel from the anode to the cathode, creating an electric field in the solid electrolyte. This electric field is the source of the capacitor’s capacitance.The capacitance of a tantalum capacitor is mainly determined by its size. The bigger the size of the capacitor, the higher the capacitance. This capacitance is usually measured in microfarads (µF). The size and capacitance of a capacitor also determine its ESR, which stands for Equivalent Series Resistance. ESR measures the resistance of the dielectric material in the capacitor and is usually measured in ohms.Tantalum capacitors can also be designed for AC signals. An AC tantalum capacitor is made up of two electrodes and a dielectric material, usually a tantalum oxide. The two electrodes are connected to the outer wrapping and the dielectric material is placed between them. When an AC voltage is applied, the dielectric will make and break the connection between the two electrodes, creating an oscillating electric field. This oscillating field creates a capacitive effect on the circuit, blocking low frequency signals while allowing high frequency signals to pass through.Tantalum capacitors are widely used in a variety of electronic devices due to their high capacitance and low ESR. They are most commonly used as storage components in DC and AC circuits, where they are used to store and release energy, allowing for a wide range of electrical applications.

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