199D684X0035A2B1

Lifetime @ Temp.:	1000 Hrs @ 85°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	A
Lead Spacing:	0.100" (2.54mm)
Height - Seated (Max):	0.280" (7.11mm)
Size / Dimension:	0.173" Dia (4.40mm)
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:	35V
Tolerance:	±20%
Capacitance:	0.68µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are a type of electrolytic capacitor which has a tantalum (Ta) anode, a MnO2 or Ta2O5 dielectric, and an electrolyte such as manganese dioxide (MoO3). They are small, non-polarized components that are used in a wide range of electronic circuits, from DC to high frequencies. The tantalum capacitor is very similar to the aluminum electrolytic capacitor, except it can have much higher capacitance in a much smaller package.The 199D684X0035A2B1 is an example of a tantalum capacitor. This particular unit is a surface-mounted capacitor with a capacitance of 680 μF and a rated voltage of 20 VDC. It features a solid MnO2 dielectric and is designed for high temperature operation up to 125°C.Tantalum capacitors have a wide range of applications. They are commonly found in computer memory cards, circuit boards, and flash memory chips. They can also be used for bypassing, blocking, decoupling, and filtering circuits. Their small size, high capacitance and low weight make them ideal for use in portable electronics.The working principle of a tantalum capacitor is based on the electrochemical properties of the manganese dioxide or tantalum pentoxide on its anode. The process works by allowing an electric charge to flow between the cathode and the anode when a voltage is applied across the capacitor. The charge accumulates on the anode and forms a layer of material with an electric polarisation field. This layer grows thicker as the applied voltage increases, providing electrical capacitance.The tantalum capacitor is a very reliable and robust device. When used in high frequency and temperature applications, the capacitor is capable of withstanding high temperature cycling, severe mechanical shock and vibration, and corrosive gases. Its electrodes are also resistant to acid oxidation, making it suitable for high humidity environments.Finally, tantalum capacitors are relatively cost-effective. Although they are more expensive than aluminum electrolytic capacitors, they offer a longer life span with reduced maintenance costs. This makes them an attractive option for modern electronic designs.

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