T491A155K016AT Capacitors

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	A
Lead Spacing:	--
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Package / Case:	1206 (3216 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	T491
ESR (Equivalent Series Resistance):	8 Ohm
Type:	Molded
Voltage - Rated:	16V
Tolerance:	±10%
Capacitance:	1.5µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors have become increasingly popular in the electronics industry due to their high stability, low voltage loss, and small size. The T491A155K016AT is one of the more common types, and is used in a wide variety of applications.

Applications

The T491A155K016AT is a type of surface mount tantalum capacitor and is most commonly used in mobile phones, notebook computers, PDAs, and other portable electronic devices. This particular capacitor can also be used for low-voltage DC-DC converter applications. Its small size makes it perfect for tight spaces where larger capacitors wouldn\'t fit.The T491A155K016AT is also commonly used in high-frequency, high-temperature applications such as medical implantable devices, automotive fuel injectors, and IMD printed circuits. Because it has a low voltage drop, it\'s often used in situations where precision and accuracy are required, such as for communication protocols.

Working Principle

A tantalum capacitor is made up of two pieces of metal surrounded by an insulating material. One piece is usually made of tantalum, while the other is usually made of mica, ceramic, or paper. When electricity is applied, it creates a current which passes through the capacitor, charging the metal plates and producing electrical energy which can be used by the device.The T491A155K016AT is a polarized capacitor, meaning that it\'s designed to work in one direction only. This is important to note when wiring, as reversing the direction of the current will damage the capacitor.The T491A155K016AT has a rated capacitance of 1.55nF and an operating temperature range of -55°C to +125°C. This makes it perfect for applications which require high temperatures, like medical implantable devices. When using the T491A155K016AT, it\'s important to remember that its leakage current decreases with increased temperature. This means that it should be used in circuits that don\'t require high energy discharge, as the capacitor will become less efficient over time.

Conclusion

The T491A155K016AT is one of the most popular types of surface mount tantalum capacitors, and is used in a variety of applications. Its small size, high stability, and low voltage loss make it perfect for mobile phones, notebook computers, PDAs, and other portable electronic devices. Additionally, its high temperature range makes it suitable for high-frequency, high-temperature applications such as medical implantable devices, automotive fuel injectors, and IMD printed circuits. When using the T491A155K016AT, it\'s important to remember that its leakage current decreases with increased temperature, so it should be used in circuits that don\'t require a high energy discharge.

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