T494D476M020AT

Capacitance:	47µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Molded
ESR (Equivalent Series Resistance):	200 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.122" (3.10mm)
Lead Spacing:	--
Manufacturer Size Code:	D
Features:	General Purpose
Failure Rate:	--
Series:	T494
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--

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Introduction to Tantalum Capacitors

Tantalum capacitors provide reliable and efficient electrical storage solutions for a wide range of application fields. They offer a variety of design options and provide low-cost, size-efficient, high-performing end products. Tantalum capacitors come with several different types of outer casings and varying electrical ratings. This article will explore the application field and working principle of T494D476M020AT tantalum capacitors.

What are Tantalum Capacitors?

Tantalum capacitors are the most common type of electrostatic capacitor, with a wide range of uses in electronic circuits, audio and telecommunications. They consist of two electrodes separated by a dielectric material, usually tantalum dioxide. The electrodes are usually made of metals, such as aluminum or nickel-plated steel. The dielectric material is composed of an electrolyte and a film of tantalum dioxide, which has properties to increase its dielectric strength.

Benefits of Tantalum Capacitors

Tantalum capacitors offer a number of advantages, including:• Low ESR (equivalent series resistance) and ultra-low ESR• High capacitance• Robust construction• Low voltage/high voltage capability• Low inductance• Temperature stability• Low self-discharge• Long life expectancy

Applications of T494D476M020AT Tantalum Capacitors

T494D476M020AT tantalum capacitors are designed for high-performance, high-frequency applications that require low temperatures and high insulation resistance. These capacitors are often used in board-level components, such as frequency shifters, transmitters, receivers, power supplies and oscillators. They can also be used in anti-noise filters, transient suppression circuits and signal-suppression circuits.

Working Principle of T494D476M020AT Tantalum Capacitors

Tantalum capacitors work using the same principles as other types of capacitors. The two electrodes of a tantalum capacitor do not need to be of the same material, since the efficiency of the capacitor depends on the connection of the two electrodes. The dielectric material in between the two electrodes is made of either tantalum dioxide or Niobium.When current is supplied to the two electrodes, electrons travel through the electrodes and the dielectric material. The current is stored in the form of a field in the dielectric material, creating a capacitor. Tantalum capacitors are highly efficient, as they are able to store more charge than other types of capacitors due to their high dielectric strength.

Conclusion

T494D476M020AT tantalum capacitors are widely used in many different applications, due to their reliable performance and wide range of design options. They are capable of low-voltage/high-voltage operations, and store more charge than other types of capacitors, allowing for long life expectancy. Their working principle is based on the same principles as other types of capacitors, with the addition of a high-dielectric strength material in their construction.

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