199D156X0020D1V1

Lifetime @ Temp.:	1000 Hrs @ 85°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	D
Lead Spacing:	0.100" (2.54mm)
Height - Seated (Max):	0.400" (10.16mm)
Size / Dimension:	0.236" Dia (6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	TANTALEX®, 199D
Operating Temperature:	-55°C ~ 85°C
ESR (Equivalent Series Resistance):	--
Type:	Conformal Coated
Voltage - Rated:	20V
Tolerance:	±20%
Capacitance:	15µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

Tantalum capacitors, sometimes simply referred to as tantalum caps, are a type of electrolytic capacitor with wide usage in consumer electronics, medical equipment and military gear. They are comprised of an anode of tantalum metal, covered in an insulating layer of oxide while a cathode of tantalum alloy is pressed against it, a layer of conductive material between the two. Due to their construction, tantalum chips are known for their high reliability, higher capacitance-to-volume ratio than aluminum capacitors, good stability and low cost.The 199D156X0020D1V1 is an example of a typical tantalum capacitor. It is a two terminal radial leaded capacitor with a lead length of 20mm and a diameter of 15mm. It is rated for use at an operating temperature range of -55°C to +125°C and has an maximum capacitance of 22µF. It is an ideal choice for applications such as energy storage, power supply filtering and timing circuits in high temperature, hostile environments.The working principle of a tantalum capacitor is the same as that of any other type of electrolytic capacitor. When the capacitor is supplied with a DC voltage, it creates an electric field between its plates and charges the corresponding plates of the dielectric material sandwiching them. The capacitor then stores the electric field and its associated energy until it diischarges the voltage when the electric field it generates exceeds its breakdown voltage. Tantalum capacitors are divided into two categories: solid and wet. In a solid tantalum capacitor, the anode is composed of a porous sintered pellet of tantalum, while the dielectric material, or electrolyte, is a conductive solid manganese dioxide. The cathode is composed of a layer of electrolyte and a sintered tantalum layer. This type of capacitor is available in a range of packages with radially or axially-leaded terminations and is suitable for applications such as power supplies, DC decoupling, and RF bypass applications. On the other hand, a wet tantalum capacitor is composed of a sintered tantalum anode, an electrolyte of liquid droplets submerged in a rubber-like material, and a solid tantalum cathode. It has a high reliability and a higher capacitance-to-volume ratio than other types of capacitors. Wet tantalum capacitors are available in either through-hole or surface-mount versions and are often used in the military and aerospace industries, as well as in medical and industrial applications.In summary, tantalum capacitors are reliable, high-performance components for many electronic applications. The 199D156X0020D1V1 is a widely used type of tantalum capacitor; it is rugged and reliable, and has a wide operating temperature range. Its construction and working principle make it a great choice for harsh and high-temperature environments.

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