T491A474M025AT4053

Series:	T491
Packaging:	Tape & Reel (TR)
Part Status:	Active
Capacitance:	0.47µF
Tolerance:	±20%
Voltage - Rated:	25V
Type:	Molded
ESR (Equivalent Series Resistance):	13 Ohm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max):	0.071" (1.80mm)
Lead Spacing:	--
Manufacturer Size Code:	A
Ratings:	--
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors

Tantalum capacitors are electronic components that use the element tantalum as their primary electrical conductor. They are widely used in many electronic circuits for various purposes including decoupling, bypassing, wave shaping, blocking, coupling and singal filtering. These components are known for their ability to store large amounts of electrical energy and are often used to provide quick burst of power in circuits that require high levels of current. The T491A474M025AT4053 is a type of tantalum capacitor and its applications and working principles are discussed in this article.

Applications of T491A474M025AT4053

The T491A474M025AT4053 tantalum capacitor is often used in high-frequency and high-temperature applications. It is widely used in cellphones and other mobile devices, which require the capacitor to be able to withstand the high temperatures generated by these devices. It is also widely employed in radio frequency identification (RFID) systems, as the capacitor’s low internal resistance and fast response time allow for efficient data retrieval.The T491A474M025AT4053 tantalum capacitor is also popularly used in medical equipment and aerospace applications due to its small size and high-volume energy storage capabilities. Additionally, this capacitor can be used in automotive, robotics, military, and telecommunications applications.

Working Principle of T491A474M025AT4053

The T491A474M025AT4053 tantalum capacitor works by storing electrical charge on an anode (positive electrode) and a cathode (negative electrode). In the capacitor, an anode of tantalum and an electrolytic solution of an oxide layer is separated by an oxide layer. This oxide layer passes through voltage and acts as a dielectric.When a voltage is applied across the capacitor, the tantalum is polarized, forming an anodically insulated contact layer between the anode and the electrolyte solution. This layer of insulation stores a charge between the two electrodes, allowing for energy storage. This layer of insulation also protects the capacitor from damage from any sudden increases in voltage or current.

Conclusion

Tantalum capacitors, such as the T491A474M025AT4053, are essential components of many electronic circuits due to their high-volume energy storage capabilities, fast response time, and ability to stand up to high temperatures. They are popularly employed in cellphones, RFID systems, medical equipment, aerospace applications, automotive, robotics, military and telecommunications applications. Their working principle is based on the principle of anodic insulation between the anode and cathode within the capacitor and the oxide layer.

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