TPSA475K020R1800 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.:	--
Series:	TPS
ESR (Equivalent Series Resistance):	1.8 Ohm
Type:	Molded
Voltage - Rated:	20V
Tolerance:	±10%
Capacitance:	4.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Tantalum capacitors are an important form of passive components that are commonly used in electronics and electrical engineering applications. These capacitors are known for their high storage capacity and low equivalent series resistance (ESR) compared to other types of capacitors. One such type of tantalum capacitor is the TPSA475K020R1800, which is commonly used in applications such as power supplies, voltage regulation, and signal filtering. In this article, we will discuss the application field and working principle of the TPSA475K020R1800.

Working Principle

The TPSA475K020R1800 is a surface-mount tantalum capacitor in an enclosed case, which prevents moisture from entering. The capacitor contains two plates made from tantalum, with one plate covered in a thin film of an insulating material. Between the two plates is an electrolyte, usually a gel of a conductive material such as an alkaline solution. When voltage is applied across the capacitor, a current passes through the plates, and charge is stored in the capacitor. The working principle of the capacitor is based on Faraday\'s law of induction, which states that the rate of change of electric field with time gives rise to an electric current. When voltage is applied across the plates, it produces an electric field, causing a movement of charge carriers. This movement of charge carriers produces a current which is then stored in the capacitor, resulting in a change in the electric potential across the plates.

Applications

The TPSA475K020R1800 capacitor is mainly used in applications such as power supplies, voltage regulation, and signal filtering. In power supplies, the capacitor can be used to provide a steady voltage output and reduce ripple noise. In voltage regulation, the capacitor can be used to help reduce the output voltage fluctuations. The capacitor can also be used for signal filtering, as it is able to store large amounts of charge and has a low ESR. The TPSA475K020R1800 capacitor can also be used in audio applications, particularly for applications involving low-frequency signals. The capacitor can be used in a loudspeaker system, for example, to smooth out bass frequencies, resulting in improved sound quality. Additionally, the capacitor can be used in guitar effects pedals to reduce noise and reduce to soft-start circuit particular popular for digital overdrives.

Conclusion

In conclusion, the TPSA475K020R1800 is a surface-mount tantalum capacitor that is used in a variety of applications including power supplies, voltage regulation, and signal filtering. The capacitor is able to store large amounts of charge and has a low equivalent series resistance, making it an ideal choice for applications requiring large amounts of power. The capacitor is also used in audio applications, particularly for applications involving low-frequency signals.

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