T491B474M035AH

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
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):	8 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±20%
Capacitance:	0.47µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum capacitors are a type of electrolytic capacitor. The main ingredients of a tantalum capacitor are a tantalum oxide layer and two lead terminals applied to the oxide layer. This oxide layer forms a barrier between the two terminals, allowing for a high dielectric constant, making the tantalum capacitor a highly capacitative component in a very small form factor. The tantalum capacitor is a type of electrolytic capacitor, and the T491B474M035AH is an example of a tantalum capacitor.The T491B474M035AH offers a dielectric strength of 8 volts, and a voltage range of 0.5 to 16 volts. Its temperature range is -55 to +125 degrees Celsius, and its capacitance range is 470-510 microfarads. This is a surface mount capacitor and measures in at 4.7x6.2mm. It has a high temperature range and is polarized, meaning one side of the capacitor has a higher potential than the other.The T491B474M035AH tantalum capacitor is available in multiple applications from data communication systems to circuit boards. The dielectric of the capacitor is mainly the tantalum oxide layer, but the layer also serves as a protective coating against impurities. This is important for performance in high humidity environments because it prevents moisture from entering the capacitor and breaking it down.The T491B474M035AH can be found in DVD players, consumer electronic devices, and LCD TVs. In DVD players, the capacitor is used to stabilize the electric current from the device’s power line which then assists in reducing power fluctuation and ensuring the player operates more efficiently. In consumer electronic products, it can be found in voltage regulator circuits, offering current protection and consistent voltage delivery. LCD TVs often require several tantalum capacitors due to their required current and voltage load, and the T491B474M035AH proves to be a great solution for this application.The working principle of the T491B474M035AH is similar to that of other tantalum capacitors. The two terminals are charged by a voltage applied to the capacitor, and any changes to the voltage cause a polarization of the dielectric, the tantalum oxide layer. This not only changes the capacitance, but also the voltage stored within the capacitor. When the voltage is low, the capacitance is low; when the voltage is high, the capacitance increases.The T491B474M035AH is designed to handle high temperatures and high voltage levels, offering a host of advantages when it comes to applications within the consumer electronics and electrical engineering industries. It is designed to provide a safe and consistent performance, even at the highest temperatures and with the most demanding electrical loads. With its unbeatable performance and dielectric strength, the T491B474M035AH is a great capacitor option for applications requiring reliable power delivery and consistent use.

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