TH3A105M025D3000

Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max):	0.071" (1.80mm)
Lead Spacing:	--
Manufacturer Size Code:	A
Ratings:	AEC-Q200
Features:	General Purpose
Failure Rate:	--
Series:	TANTAMOUNT®, TH3
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	1µF
Tolerance:	±20%
Voltage - Rated:	25V
Type:	Molded
ESR (Equivalent Series Resistance):	3 Ohm
Operating Temperature:	-55°C ~ 150°C
Lifetime @ Temp.:	--
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)

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Tantalum Capacitors – TH3A105M025D3000 Application Field and Working Principle

Tantalum capacitors are essential components in numerous electronics applications, ranging from consumer and commercial electronics to military and aerospace systems. The TH3A105M025D3000 is a popular model of tantalum capacitor that has been used in countless electronic devices since its release. By understanding the working principle of such capacitors and their application fields, users can best take advantage of their unique properties.

The Working Principle of the TH3A105M025D3000

Tantalum capacitors are polarised electrical devices which store energy in an electrical field. The basic principle behind the device is that two charged surfaces, each with a different voltage, are brought close together and separated by an insulating medium, or dielectric. Electrons are attracted by the higher voltage surface and leave the lower voltage surface to fill the opposing plates. As an electrical charge builds, a potential voltage difference is created between two plates. When a circuit is closed between those two plates, electricity flows in one direction, while the capacitor remains continuosly charged until the relative voltages of the two plates remain equal.The TH3A105M025D3000 is unique due to its structure and construction. This model is constructed from a porous tantalum anode, oxidized and sealed in a solid, leak-proof case. It contains a gel-like, wet electrolyte which acts as the main dielectric and enables the device to store a higher capacitance rating than similarly sized capacitors. The large voltage rating and use of tantalum also makes it well suited for high frequency applications, including commercial, industrial and aerospace settings.

Application Field for the TH3A105M025D3000

Tantalum capacitors are commonly used in electronics applications, and the TH3A105M025D3000 is no exception. This model’s large capacitance rating coupled with its high voltage rating makes it a go-to choice for many devices, especially those used in high-frequency applications or in 16- or 18-volt power supplies. The TH3A105M025D3000 is specially designed to provide good performance in military, aerospace and commercial applications. In these environments, its highly stable electrical properties and high voltage ratings make it an ideal choice for power supplies, DC-DC converters and high-frequency applications. The unit also features excellent temperature stability and current carrying capacity as well as low ESR. The device’s superior electrical properties come with a higher price tag, however, which either limit or render its use in many low-cost consumer and automotive applications impractical.

Conclusion

The TH3A105M025D3000 is a good example of a tantalum capacitor, illustrating how such devices store energy and how they can be used in different application fields. Its large capacitance and voltage ratings, as well as its temperature stability and current carrying capacity make it a vital component for military, aerospace and commercial electronics applications. However, its high price can limit its use in low-cost consumer and automotive applications.

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