Series:	TAP
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	68µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Conformal Coated
ESR (Equivalent Series Resistance):	900 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	1000 Hrs @ 85°C
Mounting Type:	Through Hole
Package / Case:	Radial
Size / Dimension:	0.354" Dia (9.00mm)
Height - Seated (Max):	0.630" (16.00mm)
Lead Spacing:	0.197" (5.00mm)
Manufacturer Size Code:	N
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors

Tantalum capacitors are commonly used in many applications, such as power supplies, medical industry and instrumentation. Among them, TAP686M020CRW is one kind of tantalum capacitor. This article will talk about its application fields, working principles, advantages and limitations.

Application Field

The TAP686M020CRW is particularly suited for military applications where high performance, reliability, and extended life are mandated. Typical applications include power conversion, RF/microwave, aerospace, defense, and commercial markets. It is also widely used in numerous power supply and bypass applications. In addition, ceramic capacitors with the same technology are becoming increasingly popular for bypassing power supplies, low-pass filter and pulse applications.

Working Principle

TAP686M020CRW tantalum capacitors are typically constructed with anode and cathode electrodes attached to a tantalum pellet housed inside a metal can. The anode and cathode electrodes are then connected to a conductive layer that passes current. The tantalum core acts as the dielectric material, creating a capacitor with a high level of capacitance and stability. The metal can then acts as a shield to protect the inner core from electrostatic discharge and other environmental hazards. Tantalum capacitors have the advantage of being able to handle higher currents and temperatures than other types of capacitors. This makes them ideal for applications in harsh environments, such as military environments. In addition, they are very reliable, with no audible discharge sound.

Advantages

The most important advantage of TAP686M020CRW tantalum capacitors is their high maximum operating temperature. This allows for a much longer operational life, even in challenging and high-stress environments. In addition, these parts have a higher capacity for storing energy than other types of capacitors, resulting in a more efficient charge transfer. Additionally, because the level of capacitance is much higher than that of other types of capacitors, tantalum capacitors have better temperature compensation and a much higher stability over time.

Limitations

The main limitation of using tantalum capacitors is their comparatively high cost compared to other types. In addition, they are more sensitive to current leakage at higher temperatures, which is why they should be carefully tested during the design phase and in high temperature environments. Furthermore, the metal can can act as a hindrance to the capacitor’s overall performance at higher frequencies, resulting in increased distortion and increased power loss.

Conclusion

TAP686M020CRW tantalum capacitors are widely used in many applications, from military to commercial. They provide a wide range of advantages, from high maximum operating temperature, to high capacity for storing energy and excellent temperature compensation. However, there are some limitations to consider, such as the increased cost and increased current leakage at higher temperatures. Careful testing should be done to ensure that the capacitor is able to withstand temperature, current and voltage spikes.

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