Lifetime @ Temp.:	1000 Hrs @ 85°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	E
Lead Spacing:	0.200" (5.08mm)
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	0.339" Dia (8.60mm)
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:	25V
Tolerance:	±10%
Capacitance:	47µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors, or more accurately, tantalum electrolytic capacitors, are a type of capacitors, usually composed of tantalum powder with an oxide dielectric layer on its two sides. Manufacturers usually give capacitors of this type the alphanumeric code “199D476X9025E6B1” to indicate their specifications.

Application Field

Tantalum capacitors come in various shapes and sizes and they are ideal for applications where large capacitance values and small package sizes are required. These capacitors can be found in automotive industry equipment, medical instruments, computers, cellphones, satellite dishes, military hardware, laptop computers, and many more.Examples of common applications include: providing a bypass capacitor for transistors and amplifiers, tampering low-frequency signals, providing voltage-protection for components, and more.

Working Principle

Tantalum capacitors work using a process called electrolysis. In this process, an anode reacts with an electrolyte solution, forming an oxide which acts as a dielectric. This oxide layer, along with the anode, creates a capacitor which stores energy.Tantalum capacitors work in the same way as any other capacitor, but the oxide that forms as a result of the electrolysis process gives it a much higher capacitance value. Additionally, since the oxide layer is extremely thin, tantalum capacitors can produce higher amounts of charge without taking up too much physical space, making them ideal for applications where space is a premium.

Conclusion

Tantalum capacitors are an incredibly useful type of capacitors that offer high capacitance values and take up only a small amount of space. Manufacturers classify them using their alphanumeric code, such as “199D476X9025E6B1”, to differentiate them from other capacitors. These capacitors have many applications in different types of fields, such as automotive, medical, and military, and work via a process known as electrolysis.

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