T491A156M010AT

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	A
Lead Spacing:	--
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Package / Case:	1206 (3216 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	T491
ESR (Equivalent Series Resistance):	3.2 Ohm
Type:	Molded
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	15µF
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 electrochemical capacitors that have been designed to have a larger capacitance density than aluminum electrolytic capacitors in a smaller package size and with a better temperature performance at higher capacitance values. They are also less prone to self-discharge and offer a longer service life in comparison to ceramic capacitors. The T491A156M010AT tantalum capacitor is a perfect example of this type of capacitor, offering benefits to its intended applications with its unique design characteristics.

T491A156M010AT Application Field

T491A156M010AT tantalum capacitors can be used in a variety of different applications, such as power supply decoupling, signal filtering, DC blocking, and impedance matching. They are commonly found in notebook computers, life support systems, and power supplies due to their excellent electrical characteristics. In addition to this, they are particularly well suited for bypassing and energy storage in audio systems, TV and monitors, power supplies, and instrumentation.

Working Principle of T491A156M010AT

The T491A156M010AT tantalum capacitor works on the principle of electrochemical double layer capacitors (EDLC). This involves a dielectric that is formed when electric charges of opposite polarity are created in a thin film of tantalum pentoxide. This layer of tantalum nitride acts as the dielectric material and creates a very thin barrier between two conductive elements. When the anode is connected to a positive voltage and the cathode is connected to a negative voltage, an electric field is created, allowing charges to be stored on either side of the capacitor. This allows the capacitor to store an electric charge and to release it when needed.

Advantages of T491A156M010AT

The T491A156M010AT tantalum capacitor offers numerous advantages compared to other types of capacitors, including a small size, high capacitance value, high capacitance density, low self-discharge, and a long service life. Additionally, it offers a high maximum operating temperature of 105°C, making it suitable for a wide range of applications, particularly those that require a higher temperatures. Furthermore, the capacitor offers good electrical characteristics and improved temperature stability for higher capacitance values.

Disadvantages of T491A156M010AT

Despite the numerous advantages of the T491A156M010AT tantalum capacitor, there are some drawbacks to consider when using this type of capacitor. Firstly, they are relatively expensive when compared to other types of capacitors due to their unique design. Additionally, they are prone to catastrophic failure if subjected to too high voltages, and can be particularly susceptible to moisture and other environmental factors. Finally, their low maximum operating temperature of 105°C may not be suitable for some high-temperature applications.

Conclusion

T491A156M010AT tantalum capacitors are a great choice for a wide range of applications, providing excellent electrical characteristics and improved temperature stability in comparison to other types of capacitors. They offer a high capacitance density, low self-discharge, and a long service life, however, these benefits are accompanied by a more expensive cost and a risk of catastrophic failure when subjected to too high of a voltage. Overall, the T491A156M010AT tantalum capacitor is an excellent choice for those looking for a capacitor to improve their application\'s performance.

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