T491B475K020AT4280

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):	3 Ohm
Type:	Molded
Voltage - Rated:	20V
Tolerance:	±10%
Capacitance:	4.7µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to Tantalum Capacitors

Tantalum capacitors are one of the most common types of capacitors used in modern integrated circuits. This type of capacitor is made from tantalum metal and is stored with a particular dielectric material. The dielectric material and the tantalum oxide used in capacitor manufacturing give it unique characteristics and capabilities.Tantalum capacitors are ideal for use in high-density electronic circuits and are used in many electronic designs. They are widely used in mobile phones, digital cameras, computers, and audio devices, as well as many other applications. The ability of these capacitors to handle large amounts of current without fail is one of the reasons why they are so popular.

T491B475K020AT4280: Application Field and Working Principle

The T491B475K020AT4280 is a tantalum capacitor designed for use in high-reliability and low-temperature applications. It is a fixed-value Type D capacitor, meaning that its capacitance value does not change with temperature. It has an advanced design that allows for a wide operating temperature range that covers from -55°C to +125°C, making it suitable for harsh environmental conditions.The T491B475K020AT4280 is designed to hold a stable capacitance value over a wide operating temperature range. It also has a low Equivalent Series Resistance (ESR) and a low self-inductance, meaning that it can efficiently transfer high-frequency current signals. As a result, it is often used in high-frequency applications such as power switching, pulse modulation, and digital logic circuits.T491B475K020AT4280 capacitors are constructed using advanced tantalum metallurgy. They are often encased in a hermetically sealed package, making them resistant to moisture and corrosion. The body of the capacitor is made from a solid tantalum material, and the anode electrode is connected with an electrolytic manganese dioxide (MnO2) insulation layer.The fixed-value capacitor also has a high quality factor, which determines the rate of power loss in the capacitor. The higher the quality factor, the lower the power loss. This makes the T491B475K020AT4280 a desirable choice for applications that require low power loss.

Conclusion

T491B475K020AT4280 capacitors are a type of tantalum capacitor that is well-suited for use in a wide range of electronic applications. They are capable of handling high amounts of current without fail, and their ability to hold a stable capacitance value over a wide temperature range makes them ideal for use in high-reliability and low-temperature applications. The T491B475K020AT4280 has a low ESR and self-inductance, and its high quality factor allows for low power losses.

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