T491C155K050ZT7280

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:	±10%
Capacitance:	1.5µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Tantalum CapacitorsT491C155K050ZT7280 is a special kind of capacitor that belongs to the tantalum capacitor family. It is a surface mount, molded design capacitor with a capacitance of 155K uF. It is also a form of electrolytic capacitor featuring a polarized element, which is used to create an electrical storage device. These capacitors are used in a wide range of electronics, primarily due to their small size, low cost, long service life and excellent electrical stability.The key components of a tantalum capacitor are the tantalum anode and the dielectric, which is also known as a “tantalum salt”. The anode is usually formed by a sheet of tantalum metal foil and the dielectric is a mixture of manganese dioxide and barium titanate. The electrolyte, which is usually a solution of potassium hydroxide and water, is used to make an electrical connection between the anode and the dielectric. A tantalum capacitor with the T491C155K050ZT7280 markings is a surface mount capacitor which is made with a nickel base metal and then covered with an insulating lacquer.Tantalum capacitors are used in a variety of applications, such as power supplies, dc-to-dc converters, computers and laptops, cell phones, television sets, audio equipment, and automotive electronics. The most common application of tantalum capacitors is in the power supplies of personal computers. They are used as main power filter capacitors and can also be used to store energy during peak load times.In terms of working principle, the current flow through the anode-electrolyte-dielectric is the key procedure that happens in tantalum capacitors. When the potential difference between the anode and the dielectric is high enough, the current will be allowed to flow. This causes a charge to be stored in the anode-electrolyte-dielectric system. Due to the capacitance of the element, the current will discharge through it, which is why the device is referred to as a capacitor. This stored charge is then released when the electrode potential reaches a certain point and this discharge process is constantly repeated due to the continuous flow of current through the element.With the T491C155K050ZT7280 design, the voltage and temperature are generally restricted to a much lower range than what is typical for standard aluminium electrolytic capacitors. The capacitance is also restricted and this particular capacitor has a rated capacitance of 155K uF. The size and shape of the capacitor, as well as the construction, are designed to make it compatible with the industry standard surface mount technology (SMT). Tantalum capacitors can be used in a variety of devices, but they are particularly advantageous in high frequency and/or high temperature operational applications. This is because tantalum capacitors are particularly stable under these conditions and can also tolerate transient loads more effectively than other capacitor types. The small size, reliability and cost effectiveness of these capacitors mean that many devices which use them, like cell phones, are able to remain compact and cost-effective.

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