T491B225M035ATAU04

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):	4 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±20%
Capacitance:	2.2µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

T491B225M035ATAU04 capacitors are a type of electrolytic capacitors formed with a tantalum anode, a wet electrolyte and a monolithic cathode. These capacitors were originally developed in the 1950s to provide the benefits of higher capacitance in smaller case sizes compared to Aluminum Electrolytic Capacitors. They are a passive electrical item used to store energy and create non-linear circuits.

Applications

T491B225M035ATAU04 capacitors have a wide variety of uses. In consumer electronics, they are used for timing and signal filtering in consumer-level equipment such as cellphones, laptop computers, as well as audio and consumer video equipment. They are also used for powering electronic motors and defibrillators, and for boosting the voltage of voltage converters. In military and aerospace applications, they are used for power regulation, radiation hardness and signal integrity.

Basic Working Principle

The main working principle of T491B225M035ATAU04 capacitors is based on a called the “butterfly-effect”. This term refers to the fact that an extremely small change in the anode voltage can cause a much larger change in the capacitor’s voltage. Because of this effect, these capacitors can react very quickly and precisely to changes in power supply and load. The capacitor works by storing up energy on its two plates which are separated by an electrolyte. As a voltage is applied to the plates, electrons begin to build up on one of the plates and the other plate becomes a negative charge. This process is called “charging”. When the plates are charged, they will store the electrical energy from the voltage applied. When a voltage is removed from the plates, the electrons travel back to their original state and the capacitor discharges. This process is called “discharging”. The time between charge and discharge is called “capacitance time”. Depending on the capacitance rating of the capacitor, the time for discharge could vary from few nanoseconds to many minutes.

Advantages

T491B225M035ATAU04 capacitors offer several advantages over other types of electrolytic capacitors. They are more robust than aluminum electrolytic capacitors and are less prone to failure. The tantalum capacitor also has a higher volumetric efficiency compared to other types of capacitors, which means that it can store more energy in a smaller package. The capacitance range of T491B225M035ATAU04 capacitors can also range from the micro-farads (μF) to thousands of minutes (TF).

Disadvantages

Although these capacitors offer many benefits compared to other types of electrolytic capacitors, they also have a few disadvantages. One is that they are prone to failure if exposed to high temperatures for extended periods of time. In addition, the cost of these capacitors can be relatively high compared to other types of capacitors.

Conclusion

T491B225M035ATAU04 capacitors are a type of electrolytic capacitors with a wide range of uses. These capacitors offer many advantages such as higher volumetric efficiency, higher capacitance range and high temperature resistance, making them ideal for use in many applications. However, the cost of these capacitors can be relatively high and they are prone to failure if exposed to high temperatures, so it is important to consider the advantages and disadvantages of these capacitors before making a decision.

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