Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	X
Lead Spacing:	--
Height - Seated (Max):	0.169" (4.30mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	600 mOhm
Type:	Molded
Voltage - Rated:	6.3V
Tolerance:	±20%
Capacitance:	680µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors Application Field and Working Principle

Tantalum capacitors are available in various shapes and sizes, with varying electrode construction, capacitance values, and working voltages; all designed to meet the application needs of the user. By far, the most common construction is a solid and compact, cylindrical metal can. The most popular type of these capacitors is the T491X687M006ZT4860ZV10, which uses a manganese dioxide cathode and an external Tantalum anode for the dielectric barrier. Its specifications are as follows: capacitance range between 0.1 – 0.47 µF, rated voltage of 10V working voltage of 16V, and an operating temperature range from -55°C to +85°C maximum. The working principle of Tantalum capacitors T491X687M006ZT4860ZV10 is reasonably simple due to its small size and construction. When the capacitor is connected in circuit, an electric field is generated between the anode and cathode layers in the capacitor. When a voltage is applied across the anode and cathode, the oxide layer between them allows charge to pass through, thus creating electrical capacitance. Equally, the electrical charge passes through the oxide layer in reverse when the voltage is removed. The T491X687M006ZT4860ZV10 are capable of being used in a variety of applications. This includes audio power amplifiers, power supplies, and any other type of circuits requiring a low-leakage capacitor with high capacitance. Their small size and the manganese dioxide cathode make them ideal for building into acoustic systems. In addition, they are typically used for smoothing in automotive applications, as the capacitance value is relatively large compared to ceramic capacitors. Moreover, their ability to handle high voltage makes them an ideal power supply capacitor for applications requiring high transients, such as voltage regulators and power amplifiers. In summary, the T491X687M006ZT4860ZV10 is a popular Tantalum capacitor with a manganese dioxide cathode and external Tantalum anode for the dielectric barrier. Their high capacitance allows them to be used for a number of applications, ranging from audio amplifiers and power supplies to automotive power supplies and voltage regulators. They have a rated voltage of 10V, and a working voltage of 16V, with an operating temperature range from -55°C to +85°C. The working principle of this capacitor is based on the electric field generated between the anode and cathode layers. The oxide layer between them is responsible for creating electrical capacitance, allowing current flow with the application of voltage, and the electrical charge passing through in reverse as the voltage is removed.

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