T491B476M010ATAUTO

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	AEC-Q200
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	1 Ohm
Type:	Molded
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	47µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum capacitors, otherwise known as tantalum electrolytic capacitors, are special types of capacitors that use a tantalum anode and a porous tantalum surface as its electrodes. Unlike other capacitor types, tantalum capacitors tend to have a higher capacitance for a given volume, making them ideal for high energy density applications. They are also popular for their low ESR (equivalent series resistance) and a high self-inductance, making them suitable for high frequency applications.The T491B476M010ATAUTO is a type of tantalum capacitor. It is a 10-volt rated, B-type, 476 μF (MicroFarad) capacitor with a temperature range of – 40 to 125 °C, and a maximum ripple current of 1.56 A. It is a surface-mount capacitor and it features a screw terminal atop, which allows for easy mounting and connection. With its rated capacitance, its applications include filtering, DC/DC conversion, and more.The working principle of a tantalum capacitor is quite simple. It uses a porous tantalum anode and a tantalum dielectric to form an electrochemical system. The anode is typically coated with an electrolyte, which functions as a conductor and allows the capacitor to produce a charge. The two electrodes then store electrical energy in the form of a voltage. When the capacitor is connected to a DC power source, the electrons from the anode move through the electrolyte and into the dielectric, producing a static electric field. The static electric field then produces a capacitive response, which is a result of positive ions and negative ions flowing into each other, producing a change between the two poles of the capacitor, measured as a ‘capacitance’. The same occurs when the capacitor is connected to AC power. Instead of having only a static electric field, an alternating charge is applied across the two poles, resulting in a changing capacitance, as well as an alternating current. The T491B476M010ATAUTO tantalum capacitor is ideally used for DC/DC and AC/DC conversion in power electronics inherently due to its low ESR, but can be used for other applications, such as filtering, timing, and buffer circuits. Due to its high capacitance for a given volume, it is especially useful in high-density, low-volume projects. Thanks to its screw terminal, it can be connected and affixed easily to most circuits as well as incorporated in projects with different types of mounting techniques.In conclusion, the T491B476M010ATAUTO tantalum capacitor is a 10-volt rated, B-type, 476 μF capacitor with a high capacitance-to-volume ratio, making it ideal for high-energy density applications such as DC/DC and AC/DC conversion. It is also popular for its low ESR and self-inductance, making it suitable for high frequency applications. It features a screw terminal atop, which allows for easy mounting and connection, as well as combined with different mechanical mounting techniques.

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