299D225X0025AB6E3

Series:	TANTALEX®, 299D
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Capacitance:	2.2µF
Tolerance:	±20%
Voltage - Rated:	25V
Type:	Conformal Coated
ESR (Equivalent Series Resistance):	--
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	1000 Hrs @ 85°C
Mounting Type:	Through Hole
Package / Case:	Radial - 3 Leads
Size / Dimension:	0.280" L x 0.190" W (7.10mm x 4.82mm)
Height - Seated (Max):	0.360" (9.14mm)
Lead Spacing:	--
Manufacturer Size Code:	A
Ratings:	--
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors

Tantalum capacitors are small electronic components that help to store electrical energy, filter signals and regulate voltages in many electronic circuits. They are named after the element tantalum, which is used to make the casing of the capacitor. The specific model of capacitor under discussion is the 299D225X0025AB6E3.

Composition

The 299D225X0025AB6E3 is constructed from several components. Firstly, it contains a tantalum anode and cathode, made from the metal tantalum. These are what give the capacitor its name. Secondly, an oxide layer is applied to the surfaces, acting an insulator between the two metal layers. This oxide layer provides electrical insulation and also allows the capacitor to work without leaking too much current. Lastly, a 200-micron thick tantalum dielectric layer is added, designed to impede the movement of electrical charge.

Application Fields

Tantalum capacitors are a type of capacitance and are used in a wide range of devices, from commercial products such as smartphones, tablets and laptops, to military and aerospace equipment. As they are small and offer a high capacitance to volume ratio, they are particularly suited to being used in high frequency devices, such as digital circuits and radio receivers. The 299D225X0025AB6E3 capacitor is widely used in military aerospace equipment and medical instrumentation, where it is often employed for its low-loss performance. Additionally, it is also widely used in consumer electronics such as televisions, DVD players and home theater equipment, due to its reliability and relatively low cost.

Working Principle

The way in which a tantalum capacitor works is relatively simple. When a voltage is applied to the capacitor, an electric field is created between the anode and the cathode. This electric field pulls electrons from the surface of the anode and onto the oxide layer, thus creating a positive charge on the cathode and a negative charge on the anode. When the capacitor is discharged, the electric field collapses, resulting in a surge of electrons flowing from the anode to the cathode. This burst of electrons is what gives the capacitor its ability to store and release sheets of electrical current as and when they are needed.

Conclusion

The 299D225X0025AB6E3 tantalum capacitor is a versatile and reliable electronic component, capable of being used in a variety of different applications. Its use in military aircraft, medical instrumentation and consumer electronics is testament to its quality and dependability. It relies on a simple working principle, allowing the capacitor to store and release electrical charge as and when required.

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