T491D475K035AT2478

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.122" (3.10mm)
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):	1.5 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	4.7µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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T491D475K035AT2478, also known as tantalum capacitors, are electronic components primarily used to store energy and prevent significant voltage transients. In use, they act as energy reservoirs, storing electrical energy during periods when there is a low current and releasing it when more is needed. Quite versatile, they are found in a variety of power applications from consumer consumer electronics, automotive and industrial motor controls, communication systems and sophisticated aerospace--mechanical and astronomic--applications.The working principle of T491D475K035AT2478 capacitors is based on the electrical property of capacitance. This property is determined by the fact that an electric field exists between two conducting surfaces (plates) separated by an insulator (dielectric). In the case of a capacitor, electricity accumulates on one plate and induces an opposite charge on the other plate, thus allowing a flow of electrons.T491D475K035AT2478 capacitors, since they feature a tantalum electrolyte, provide the necessary high capacity of electrical charge required for a range of electronics applications. The tantalum utilized in the electrolytic solution is resistant to high temperatures, has good reliability and low equivalent series resistance (ESR). They are also highly durable, and able to tolerate low temperatures better than aluminum electrolytic-type capacitors.T491D475K035AT2478 capacitors feature two terminals, a dielectric anode and a cathode, and are mainly used as energy storage components and voltage regulators. The dielectric serves to insulate the anode and cathode, whereas the cathode serves as the terminal for external circuit connections. When the capacitor is connected in a circuit, charge is transferred from the anode to the cathode. The dielectric, known as the “core” of the capacitor, can be any material with a high dielectric constant, usually mica, polyester, polypropylene, polyimide, and ceramic.The T491D475K035AT2478 capacitor also features a tantalum body for electrolyte, which is designed to offer superior thermal characteristics, low ESR and higher capacitance than other conventional types. Tantalum capacitors are smaller than conventional types, and typically use a number of anodes to achieve the necessary capacitance. This allows the capacitor to store more energy within the same volume, which makes the T491D475K035AT2478 capacitor more efficient and able to operate in a wider temperature range than other types.T491D475K035AT2478 capacitors are used for many applications including filters, where they are used to clean up power supplies and reduce power supply noises, rhythm sequencers for musical applications, and radio receivers. They can also be used in light dimmers, amplifiers, power supplies, high power inverters and switching power supplies, and a number of other power applications. Even as flow batteries (electrochemical energy storage devices) they can provide higher energy density and quicker charging times than traditional lead-acid batteries.In automotive applications, tantalum capacitors are used as substitutes in many designs. They offer higher reliability and smaller physical size compared to traditional aluminum electrolytic capacitors. This makes them fit perfectly in the tight spaces of the complex electronic integrate modules (EIMs) used in most modern cars and trucks.In conclusion, T491D475K035AT2478 capacitors are beneficial for a variety of different applications in the industrial and consumer markets. Their ability to store energy and provide high capacitance, low equivalent series resistance, high temperature tolerance and excellent durability make them an ideal choice for a range of electronics applications. The compact size, high voltage tolerance and improved corrosion resistance of these capacitors make them even more ideal for use in automotive, communication and aerospace applications.

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