Lifetime @ Temp.:	1000 Hrs @ 85°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	A
Lead Spacing:	0.250" (6.35mm)
Height - Seated (Max):	0.376" (9.61mm)
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:	25V
Tolerance:	±20%
Capacitance:	2.2µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors

The tantalum capacitor, with its part number 199D225X0025A7V1, is a type of capacitor that uses a tantalum base as its electrodes to store electrical energy and is often used in portable electronics and in medical applications. This article will discuss the application field and working principle of this tantalum capacitor 199D225X0025A7V1.

Types of Tantalum Capacitors

Tantalum capacitors are available in two different forms: wet and dry. Wet tantalum capacitors are filled with a liquid electrolyte and feature an anode containing pure tantalum powder and an electrolyte that can either be a solid or liquid. Dry tantalum capacitors, on the other hand, are filled with Wax-like solid material and powdered tantalum anode. This type of capacitor is more robust than the wet type and generally used for applications that require a longer life span.

Application Field

The tantalum capacitor is the go-to choice for most portable electronic devices due to its superior characteristics such as a small footprint, low equivalent series resistance (ESR) and extremely low leakage current. Additionally, the capacitor has high capacitance ratings and is significantly more stable than other types of capacitors.The tantalum capacitor is also used in medical applications such as defibrillation, implantable medical devices, and other applications that require a high-reliability component. Furthermore, it is also used in consumer electronics such as mobile phones, digital cameras, and other consumer-grade items.

Working Principle

Tantalum capacitors work on electrostatic principles. Electrostatic principles dictate that when two parallel plates are separated with an insulating material, such as dielectric, electric charge is stored in the capacitor. When a positive charge is applied to the positive terminal of the capacitor, the negative charge is drawn to the negative terminal. This process causes an accumulation of charge as current flows in the circuit. As time passes, the capacitor begins to discharge and the accumulated charge dissipates.

Conclusion

The tantalum capacitor 199D225X0025A7V1 is a highly versatile and reliable capacitor used for a wide variety of electronic applications. Its superior characteristics such as its low ESR, leakage current, and high capacitance ratings make it a go-to choice for portable devices and medical devices. Additionally, due to its small size, it is also used in consumer electronics such as phones, cameras, and other everyday items. The tantalum capacitor works on electrostatic principles where two parallel plates are used to store electric charge. As current flows through the capacitor, charge accumulates and is discharged over time.

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