T491B335M035ATAUTO Capacitors

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):	3.5 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±20%
Capacitance:	3.3µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors: T491B335M035AT Application Field and Working Principle

Tantalum capacitors, known as tantalum electrolytic capacitors, are a type of electrolytic capacitor which uses tantalum as opposed to aluminum as the anode material. They are considered more reliable and compact units than aluminum electrolytes, and often form the cornerstone of many modern electronics designs. This article discusses the application field and working principle of the T491B335M035AT tantalum capacitor.

Application Field

The T491B335M035AT tantalum capacitor is a three-terminal, surface mount, radial-leaded capacitor. It has a rated capacitance of 33μF and is typically used in a variety of electronics applications, including: audio amplifiers, computer motherboards, instrumentation, measurement equipment, LED lighting systems, power supply systems, and signal processing devices.

Working Principle

The T491B335M035AT tantalum capacitor operates on the principle of electrolytic capacitance. This means that a layer of electrolyte is created between two layers of anode and cathode, thus providing a reference medium for an electrical charge. The thickness of the electrolyte determines the capacitance of the capacitor and its ability to accumulate and hold the incoming electrical charge. When an electrical charge passes through the capacitor, the anode and cathode plates absorb the energy and create a potential difference between them. This potential difference causes a current to flow through the capacitor, which in turn causes electrons to flow around the plates. As the potential difference between the plates increases, so does the charge stored on each plate. This stored charge is then released when the potential difference between the plates drops, causing a decrease in the current through the capacitor.

Conclusion

The T491B335M035AT is an important component of many electronics designs. Its three-terminal, surface mount structure makes it an ideal choice for modern circuit designs, while its ability to store and release a charge allow it to be used in a variety of applications. Its working principle of electrolytic capacitance makes it a reliable and efficient capacitor, and its extremely low temperature coefficient of capacitance and low leakage current mean it will continue to perform for many years.

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