T491A104K035AT2478

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
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
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	20 Ohm
Type:	Molded
Voltage - Rated:	35V
Tolerance:	±10%
Capacitance:	0.1µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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T491A104K035AT2478 Tantalum Capacitor Application Field and Working Principle

T491A104K035AT2478 is a type of tantalum capacitors. This type of capacitors was developed in the 1930s and is known for its high volumetric efficiency. Its properties of high temperature and temperature stability, low ESR and high ripple current allow it to be used in the demanding applications of today\'s electronics. As such, the following sections discuss the application field and working principle of this type of tantalum capacitors.

Application Field

T491A104K035AT2478 is a high-voltage, polar capacitor with a maximum rating of 35 volts. It is widely used in application where control of low frequency ripple currents is required. The construction and dielectric allows the capacitor to withstand high temperatures, up to 125°C, which is useful in some applications, such as automotive and aerospace. Its performance and high temperature stability also make it suitable for medical applications.At the same time, this type of capacitor is also used in other applications, such as communication systems, inductors, and various other electronic products, where it is used to stabilize and filter voltage signals. The combination of its size and high capacitance makes it ideal for use in high power circuits and for power control solutions that require high capacitance with a small footprint.

Working Principle

T491A104K035AT2478 is a tantalum capacitor that works under the principle of electrode polarization. It uses the electrical field of a polarized insulator between the two metal electrodes, called the dielectric, to accumulate charge. The metal electrodes are called plates, and when connected to the positive side of a DC circuit, electrons flow from the negative side onto the tantalum plate. This movement creates an effective capacitance, which is the measure of the total amount of energy stored in the capacitor when an electric charge is applied. The stimulation of an electric charge results in a flow of electrons in the opposite direction, which creates an opposite voltage field, resulting in the capacitor discharging until the opposite voltage field dissipates. This phenomenon is known as discharging and it is what makes capacitors essential components of power systems and voltage regulation systems.T491A104K035AT2478 is also well-known for its high volumetric efficiency and its ability to handle high temperature and ripple current. It is constructed with an anode made of tantalum, a cathode formed from electrolytic metal, and a dielectric consisting of manganese dioxide. This is surrounded by an insulating sleeve for further protection. Here, the dielectric plays an important role to provide insulation between the two plates and ensure that the capacitor can handle the high voltage without any risk of short-circuiting. In short, the T491A104K035AT2478 is a high-voltage, polar capacitor that is used in a wide variety of applications, such as power conditioning, voltage regulation, and high power circuits. Its ability to withstand high temperatures, low ESR, and high ripple current makes it an ideal choice for many applications. Its construction and working principle combine to make it one of the most reliable and efficient capacitors available.

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