T491C225K035AT

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	C
Lead Spacing:	--
Height - Seated (Max):	0.110" (2.80mm)
Size / Dimension:	0.236" L x 0.126" W (6.00mm x 3.20mm)
Package / Case:	2312 (6032 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	T491
ESR (Equivalent Series Resistance):	3.5 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	2.2µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are capacitor components made of tantalum material. They are able to store electrical energy as stable as other types of capacitors, such as ceramic capacitors, aluminum electrolytic capacitors, etc. However, they are better at keeping high voltage, low impedance, and can be applied in high frequency circuits. T491C225K035AT is a type of tantalum capacitors and this article will explain its application field and working principle. T491C225K035AT is a tantalum chip capacitor made of solid manganese dioxide. It has an operating temperature ranging from -55 C to +85 C and a voltage of 2.5V. It has a maximum capacitance of 2.2μF and a dissipation factor of 0.20. It is available in three sizes: 5mm x 7.5mm, 7.5mm x 10mm and 10mm x 12.5mm. It is widely used in laptop, phone and other electronic equipment because it has very small size, high capacitance and low ESR.T491C225K035AT can be applied in circuit fields such as signal buffering, power management control and power supply for voltage regulation and current control. In regard to its working principle, it has a dielectric material in between two electrodes, the anode and the cathode. The cathode and anode are generally made of tantalum which is dipped into an electrolyte material. This creates a capacitor unit which will store energy in an electric form and then release it when the load demands it. When a voltage is applied to the capacitor, current will flow through the anode and onto the dielectric material. This will form an electric field and store energy within the capacitor until all of the material between the two electrodes is reached. Once this happens, the electric field will break down and all further current flow will stop. This is how the capacitor stores and releases energy during operation.The advantage of using T491C225K035AT is that they possess high temperature stability and can be used in a wide range of temperatures. They also boast high capacitance and low ESR. The major disadvantage of these capacitors is its instability when exposed to vibrations and strong mechanical shocks. Therefore, they are best suited for applications in fine pitch circuit boards with protection against mechanical shocks.In summary, T491C225K035AT is a type of tantalum capacitors that can store and release electrical energy. It is a small component but can feature high capacitance and low ESR making it ideal for applications in laptops, phones and other electronic equipment. Its application field includes signal buffering, power management control and power supply for voltage regulation and current control. Its working principle is based on the electric fields formed between the two electrodes and the dielectric material. Although it has a few disadvantages, it is still used in electronic devices due to its high temperature stability and other features.

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