T495A475M020ATE2K0

Series:	T495
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	4.7µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Molded
ESR (Equivalent Series Resistance):	2 Ohm @ 100kHz
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max):	0.071" (1.80mm)
Lead Spacing:	--
Manufacturer Size Code:	A
Ratings:	--
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors: T495A475M020ATE2K0 Application Field and Working Principle

Tantalum capacitors are solid electrolytic capacitors that contain a layer of tantalum metal powder (or other metal powder) as the anode of the capacitor. They are widely used in electronics, providing excellent cost performance, wide temperature range, and long product life. This article will explain the application field and working principle of the T495A475M020ATE2K0 tantalum capacitor.

Applications

T495A475M020ATE2K0 tantalum capacitors are mainly used for applications that require low leakage current. These can include switching power supplies, voltage regulation, and rectification circuits. The low ESR and ESL of the T495A475M020ATE2K0 capacitors provide superior electrical characteristics for these applications.Furthermore, these capacitors are highly temperature resistant and can be used in environments with temperatures ranging from -55℃ to 125℃. Additionally, the T495A475M020ATE2K0 has long-term stability, low losses, and high stability in the presence of voltage spikes, which make it suitable for use in harsh environments.

Working Principle

The basic structure of the T495A475M020ATE2K0 is composed of an anode, organic electrolyte and cathode. The anode of this capacitor is made of a sintered tantalum powder, while the cathode is covered by a dielectric oxide film. The organic electrolyte acts as the medium that helps the current flow through the capacitor.When a voltage is applied, the electrical charge is stored in the oxide layer on the anode, which acts as an insulation layer. The amount of electrical charge stored in the bond between the anode and the electrolyte will depend on the capacitance of the capacitor. The more current passes through the capacitor, the more the oxide layer provides insulation, thus increasing the capacitance.The T495A475M020ATE2K0 is able to maintain its capacitance even under high temperature, high ESR and high voltage due to its superior dielectric properties. Furthermore, these capacitors are characterized by extremely low ESR, low leakage current, and high reliability, making them the ideal choice for many demanding applications.

Conclusion

The T495A475M020ATE2K0 is an excellent choice for applications that require low leakage current, high temperature resistance, and long product life. It offers superior electrical characteristics, low ESR, and low ESL, which make it suitable for many demanding applications. Understanding its working principle is key to effectively using it for the application.

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