199D475X0020B2B1

Series:	TANTALEX®, 199D
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Capacitance:	4.7µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Conformal Coated
ESR (Equivalent Series Resistance):	--
Operating Temperature:	-55°C ~ 85°C
Lifetime @ Temp.:	1000 Hrs @ 85°C
Mounting Type:	Through Hole
Package / Case:	Radial
Size / Dimension:	0.197" Dia (5.00mm)
Height - Seated (Max):	0.300" (7.62mm)
Lead Spacing:	0.100" (2.54mm)
Manufacturer Size Code:	B
Ratings:	--
Features:	General Purpose
Failure Rate:	--

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Tantalum capacitors are passive electronic components composed of two conductive plates separated by an insulating material called a dielectric. Tantalum capacitors have extremely low parasitic resistance, making them extremely resistant to temperature and voltage changes. The part number 199D475X0020B2B1 is a tantalum capacitor with a maximum Operating Voltage of 16V, and a maximum Case Temperature of 125°C. Tantalum capacitors provide desirable electrical characteristics over standard plastic and ceramic capacitor materials. These include their excellent performance at high frequencies, their high insulation resistance, and the low temperature coefficient of their capacitance. Consequently, they are commonly used in filter and signal conditioning circuits, and provide a cost-effective solution for high frequency applications.The most common type of tantalum capacitor is the electrolytic capacitor, in which one plate of the capacitor is an anode and the other is a cathode, connected to an electrolyte solution. The anode and cathode plates are separated by the dielectric electrolyte material. The anode is essentially a porous layer of tantalum, forming a large surface area for a given volume, resulting in higher storage capacity than what would be possible with a solid tantalum plate. These characteristics enable tantalum capacitors to provide very high capacitance values in a small physical size. The construction of the tantalum capacitor also offers advantages such as low-loss dielectric, low equivalent series resistance (ESR), and high volumetric efficiency. These advantages mean that tantalum capacitors can provide higher total energy storage capacity than ceramic, plastic, or other capacitors for a given size.The working principle of tantalum capacitors is based on the capacitor equation, which states that the capacitance of a capacitor is equal to the ratio of area of one electrode multiplied by the dielectric constant of the material between the electrodes, divided by the plate separation. This equation shows that by increasing the dielectric constant, increasing the area of the electrodes, and reducing the distance between them, the capacitance of the capacitor can be increased.In addition to their application in the electronics industry, tantalum capacitors are also used in automotive, aerospace, and military circuits. The 199D475X0020B2B1 capacitor is ideal for these environments due to its low equivalent series resistance, excellent volumetric efficiency, high charge-discharge capability, and high frequency performance. Its application in these circuits will ensure high reliability, long-term stability and low cost.

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