TAP474M050BRS

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	A
Lead Spacing:	0.197" (5.00mm)
Height - Seated (Max):	0.276" (7.00mm)
Size / Dimension:	0.177" Dia (4.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Lifetime @ Temp.:	1000 Hrs @ 85°C
Series:	TAP
ESR (Equivalent Series Resistance):	13 Ohm
Type:	Conformal Coated
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	0.47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Tantalum Capacitors

Tantalum capacitors, also referred to as tantalum electrolytic capacitors, are primarily employed in electronics due to their small size, high capacitance and low equivalent series resistance (ESR). A key characteristic of the tantalum capacitor is its ability to store and release energy on demand, which makes it well-suited for many applications such as filtering, decoupling, timing, and bypassing electrical noise. TAP474M050BRS is an example of a typical tantalum capacitor.

Application Field

The TAP474M050BRS is designed to provide reliable and high performance electrical characteristics in a wide variety of applications. It is commonly used in power circuits, due to its relatively large capacitance, which is 0.47μF, allowing for a larger charge and discharge capability. The TAP474M050BRS is also used as an audio filter in order to suppress low frequency noise and enhance the audio signal quality. Additionally, it is often used in portable devices thanks to its durability under high vibration and shock conditions, making it a great choice for providing stability in mobile phones, portable electronic devices, and automotive and industrial control applications.

Working Principle

The TAP474M050BRS is a standard tantalum capacitor, composed of a solid tantalum anode and an electrolytic cathode. It is constructed of an anode, conductive surface layer of oxide film, an electrolyte and a tantalum cathode. The anode surface is typically metalized in order to provide surface charge. The oxide film is built up on the anode surface by anodizing, and serves as a dielectric. The electrolyte serves to enable charge transfer between the anode and cathode terminals. The cathode is typically formed from a tantalum powder. When electrically charged, the anode and cathode electrodes and their respective oxide films act as an electrical double layer and store energy as a voltage. The capacitance of the TAP474M050BRS is determined by the ratio of electrode area to the distance between them. As voltage is applied, the capacitance value increases as the oxide layers in the anode and cathode created by the anodization process are compressed. Therefore, the higher the voltage, the larger the capacitance value obtained. Furthermore, the TAP474M050BRS features stable capacitance that decreases at a small rate over time, making it suitable for many DC-DC converter, audio filter, and bypass circuit applications.

Conclusion

Tantalum capacitors, such as the TAP474M050BRS, are widely used in consumer and industry applications thanks to their small size, high stability, and large capacitance. The TAP474M050BRS is particularly well-suited for use in power circuits, audio filters, and portable devices due to its ability to store and release energy on demand. The capacitance value of the TAP474M050BRS increases as voltage is applied, and decreases at a relatively small rate over time. Its design composite make it suitable for applications such as DC-DC converter, audio filter, and bypass circuit.

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