T491A107M004ZT

Series:	T491
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance:	100µF
Tolerance:	±20%
Voltage - Rated:	4V
Type:	Molded
ESR (Equivalent Series Resistance):	4 Ohm @ 100kHz
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max):	0.071" (1.80mm)
Lead Spacing:	--
Manufacturer Size Code:	A
Ratings:	--
Features:	General Purpose
Failure Rate:	--

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Tantalum CapacitorsTantalum capacitors, also known as tantalum electrolytic capacitors, are widely used electronic components that provide energy storage and voltage regulation in electrical circuits. The T491A107M004ZT is one of the widely used varieties of tantalum capacitors. Application FieldThe T491A107M004ZT tantalum capacitor is widely used in the manufacture of electronic components due to its stable performance, large capacity, low cost, and wide operating temperature. It is commonly used in mobile signal attenuation, frequency conversion, power switching, LED lighting, and aerospace equipment, as well as the filtering of automotive electronic circuits.Working PrincipleThe T491A107M004ZT capacitor has an anode made of tantalum, an electrolyte made of an inert liquid or a solid electrolyte such as manganese dioxide or octa-sus, and a cathode made of metal. The capacitor\'s core is composed of a porous ceramic dielectric layer. When a voltage is applied, the electrolyte reacts with the attractant of the positively charged anode, resulting in the formation of an electric double layer between the anode and the electrolyte, which stores the energy. The voltage on the anode builds up to form an electric field that causes electric current to flow between the electrodes, charging the capacitor. When the voltage is removed, the stored energy is released. The capacitance of the T491A107M004ZT capacitor can be varied by changing the dielectric material or the area of the electrodes. The capacitance of a 0.047F T491A107M004ZT capacitor is typically between 1 and 15 microfarads. The capacitance can also be adjusted by changing the diameter of the hole in the ceramic dielectric layer.The T491A107M004ZT capacitor is designed to maintain an equilibrium between the anode and the cathode. It also has a wide operating temperature range (–55 to + 125°C) and a low leakage current. The capacitor also has a low ESR (Equivalent Series Resistance), which helps to prevent high frequency noise.ConclusionThe T491A107M004ZT capacitor is a versatile component that is widely used in many different applications due to its stable performance, large capacity, low cost, and wide operating temperature. Its capacitance can be varied by changing the dielectric material or the area of the electrodes, and it also has a wide operating temperature range and a low leakage current. It is an ideal choice for applications that require efficient energy storage and voltage regulation.

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