T491A685K006AS-F

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.:	--
Series:	T491
ESR (Equivalent Series Resistance):	--
Type:	Molded
Voltage - Rated:	6V
Tolerance:	±10%
Capacitance:	6.8µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are electronic components used to store and release energy between two conductive surfaces. The T491A685K006AS-F is a type of tantalum capacitor and is employed in a variety of applications. This article will discuss the application fields and working principles of the T491A685K006AS-F.

Types of Tantalum Capacitors

Tantalum capacitors are available in two distinct types: the wet electrolytic and the solid-state electrolytic. The T491A685K006AS-F is a solid-state electrolytic Tantalum capacitor.In wet electrolytic tantalum capacitors, the charge is stored in a liquid electrolyte such as sulfuric acid. These are used for high-power applications such as antenna matching, power supplies, and power converters.In contrast, the solid-state electrolytic capacitors, including the T491A685K006AS-F, have a solid-state electrolyte material to store charge. This makes them well suited for low current applications such as time delays, active filters, signal conditioning, and signal isolation.

T491A685K006AS-F Applications and Usage

The T491A685K006AS-F is a rugged, solid-state electrolytic tantalum capacitor that has consistently proven to be reliable in a variety of applications. It features high temperature operation, wide voltage range, small size, and low ESR (equivalent series resistance).Its most common applications include power conditioning and filtering, timing circuits, and as a charge storage device in high-capacity circuits. It has also been used in electrical noise suppression, RF power amplifiers, power supply regulation, and switching power supplies.

Working Principles of T491A685K006AS-F

The T491A685K006AS-F operates at a very high frequency and is subject to having a small amount of the current pass through the capacitor itself. This effect is known as the Miller Plateau effect, and is why high-frequency capacitors require special ESR capacitors.TheT491A685K006AS-F is designed to reduce ESR as much as possible, while still providing high levels of performance. This is achieved by layering two separations of dielectric material, which creates a trapping effect for the incoming current.When current passes through the T491A685K006AS-F, it is trapped in the dielectric material between the two layers of electrodes. This creates a capacitive effect and enables the capacitor to store energy and release it when needed.

Conclusion

The T491A685K006AS-F is an effective and reliable solid-state electrolytic capacitor. Its combination of high temperature operation, wide voltage range, small size, and low ESR make it well-suited for a variety of applications, including power conditioning and filtering, timing circuits, and high-capacity circuits. Despite its small size, its rugged construction ensures it will remain reliable and functional even in the harshest of conditions.

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