T491C155M050AT7280

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
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
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	4 Ohm
Type:	Molded
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	1.5µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
T491C155M050AT7280 is a tantalum capacitor, also known as a Ta-Cap or an electrolytic capacitor, which belongs to a family of capacitors that use tantalum as its anode and electrolyte as its cathode. This type of capacitor has an electrical storage capacity of 155 µF at 50 V and is commonly used in the fields of automotive, industrial, consumer, and medical applications. In this article, we will discuss the application fields and working principles of this specific type of capacitor.
Application Fields
T491C155M050AT7280 tantalum capacitors are well-suited for applications requiring a stable and reliable electric energy source with a high measure of voltage and current stability. This type of capacitor is frequently used for electrical power supplies, filtering, decoupling applications, and loop stabilization in industrial, medical, and consumer circuits. Moreover, due to its low ESR and stable capacitance, this type is also widely used in automotive circuits, such as airbag deployment systems, omni-directional microphones, and electric motor control systems, among many other automotive applications.
Working Principle
T491C155M050AT7280 tantalum capacitors are based on the principle of electrolytic capacitance. In this type of capacitor, the anode is made of a porous tantalum metal body with a mechanism that allows the oxide layer of the metal to be used as a dielectric. The cathode is made of an electrolyte solution with an oxidizer, such as MnO2 mixed with some other organic material. When an electric field is applied to the capacitor, an electric current flows through the electrolyte solution and forms a layer of oxide on the tantalum anode.This oxide layer, also known as the dielectric layer, prevents further flow of electric current from one plate to another and thus increases the capacitance and the electric energy storage capacity of the capacitor. The more the capacitance of the capacitor, the greater the electric energy storage capacity.The voltage rating (V,) of the T491C155M050AT7280 is 50V, which means that it can tolerate a maximum working voltage of 50 V. The capacitance value (C) is 155 µF and the temperature coefficient (T) is 7280, which signifies that this type is designed to work in temperature limits between -55 and +125 Celsius temperature range.Conclusion
The T491C155M050AT7280 tantalum capacitor is a type of capacitor that is highly suitable for applications requiring a stable, reliable source of electric energy with a high measure of voltage and current stability. This type of capacitor is based on the principle of electrolytic capacitance, where an anode of tantalum metal with an oxide layer is used as a dielectric. The cathode is formed with the help of an electrolyte solution and oxidizer. The voltage rating of the capacitor is 50 V with a capacitance value of 155 µF and a temperature coefficient of 7280. This type of capacitor is widely used in industrial, automotive, consumer, and medical applications.

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