Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	Wet Tantalum
Manufacturer Size Code:	T
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.406" Dia x 0.921" L (10.31mm x 23.40mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	TANTALEX®, 109D
ESR (Equivalent Series Resistance):	1.8 Ohm
Type:	Hermetically Sealed
Voltage - Rated:	25V
Tolerance:	±10%
Capacitance:	560µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Tantalum Capacitors

Introduction

Tantalum capacitors (Ta-caps) are highly reliable, low profile components used in advanced electronic circuits, primarily in applications that require a low voltage power source for high frequency switching. Ta-caps are distinguished from other types of capacitors by their relatively high dielectric strength and low equivalent series resistance (ESR). Ta-caps have numerous uses in electronic circuits, especially in portable electronic devices, medical and military applications, battery powered electronics, and consumer electronics. They are well suited for applications that require a compact, low resistance, high temperature operating capacitors. A typical Ta-cap is primarily composed of a tantalum anode and a dielectric layer.

109D567X9025T2 Application Field and Working Principle

The 109D567X9025T2 is a type of surface-mount tantalum capacitor that consists of a solid (oxide) anode, solid dielectric, and solid cathode. It\'s primarily used in high speed, high voltage applications where its small size, low capacitance, and high voltage make it ideal. Its working principle is similar to that of other types of tantalum capacitors. During operation, an electric field is created between the anode and the cathode. This field is maintained by a dielectric material which separates the two poles. The capacitance of the capacitor is enhanced when the space between the two poles decreases. The 109D567X9025T2 is known for its ability to maintain a low ESR (equivalent series resistance) at higher frequencies, meaning that it can handle high frequency switching.The 109D567X9025T2 is also capable of storing an extremely high amount of energy in a particularly compact package. This makes it suitable for applications such as portable audio devices, wireless communication systems, LCD (liquid crystal display) backlights, and high speed digital signal processing.

Fabrication and Limitations

The fabrication of tantalum capacitors is a fairly complex process that involves multiple layers of dielectric and metallic electrodes. The anode of the 109D567X9025T2 typically consits of a sputtered tantalum oxide layer, and the cathode is composed of paste-back vapor deposited layer of either silver or aluminium. The fabrication process continues with the application of an anode electrolyte, followed by a special electrolytic gas sealing process. This sealing process ensures that the 109D567X9025T2 has an extremely low leakage current, as well as high insulation resistance and high capacitance retention. The 109D567X9025T2 is typically limited to a voltage rating of 25V DC. However, if used in the correct applications, it can operate safely up to 70V DC. It also has a maximum capacitance of 90525pF and a maximum temperature rating of 125°C, with a tolerance of +20% -10%.

Conclusion

Tantalum capacitors are important components in advanced electronic circuits and can be used to meet the requirements of high frequency switching and portable devices. The 109D567X9025T2 is an example of a tantalum capacitor that is particularly well-suited for high frequency scenarios and applications where small size and high capacitance are needed. Like other tantalum capacitors, it\'s fabricated using a multi-layer process and is limited to a maximum voltage rating of 25V DC. Despite this, the 109D567X9025T2 has enough energy storage capacity to be used in applications such as LCD backlights, portable audio devices, and high speed digital signal processing.

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