T491A474M025AT4153

Series:	T491
Packaging:	Tape & Reel (TR)
Part Status:	Active
Capacitance:	0.47µF
Tolerance:	±20%
Voltage - Rated:	25V
Type:	Molded
ESR (Equivalent Series Resistance):	13 Ohm
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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Introduction

T491A474M025AT4153 is a type of tantalum capacitors. It is a four-pin, axial-leaded, surface mount capacitor designed to provide electrical power in a wide range of applications. Tantalum capacitors are one of the most widely used types of capacitors in the electronics industry due to their excellent electrical characteristics and excellent performance over a wide temperature range. These capacitors are typically used in applications where high energy density, high reliability, and low leakage current are required, such as in memory modules, power supplies, and portable electronic devices.

Application Field of T491A474M025AT4153

Tantalum capacitors are used in a variety of applications including power supplies, computer motherboards, embedded systems, memory modules, voltage converters and regulators, LCD panels, automotive electronics, and cell phones. They also provide an effective solution in electronic circuits requiring a high degree of capacitance, reduced sizes, and low ESR (equivalent series resistance).T491A474M025AT4153 capacitors have a capacitance of 4.7uF and a voltage rating of 25V and can operate at temperatures up to 85°C. The combination of these characteristics makes the T491A474M025AT4153 ideal for many applications requiring large capacitors, such as digital signal processing, where a high degree of capacitance is required to reduce noise and digital signal attenuation. In addition, the combination of excellent temperature characteristics, combined with the low ESR and low leakage current, make them particularly suitable for use in power supplies, vibration control, and other high-power applications.

Working Principle of T491A474M025AT4153

Tantalum capacitors use the principle of dielectric polarization to store electrical energy. When the capacitor terminals are charged, the dielectric material between the two electrodes becomes polarized. This polarization allows current to flow between the two electrodes. As a result, a certain amount of electrical energy can be stored in the capacitor. This stored energy can be used to provide electrical power when needed in the circuit.The construction of T491A474M025AT4153 consists of a positive electrode, a dielectric material, and a negative electrode. The positive electrode consists of tantalum powder, and the negative electrode consists of a metal foil. The dielectric material between the two electrodes typically consists of an oxide layer that is formed by the reaction of a potassium-tantalum solution on the surface of the tantalum powder.The electrical characteristics of the T491A474M025AT4153 are defined by the capacitance and the voltage rating. The capacitance is dependent on the size and shape of the capacitor, as well as the dielectric material. The capacitance values of T491A474M025AT4153 range from 4.7uF to 470uF, and the voltage ratings range from 25V to 50V. The combination of these characteristics makes the T491A474M025AT4153 suitable for high power applications.In addition, the T491A474M025AT4153 also features excellent temperature performance. It has a temperature coefficient of -3%/°C to +1%/°C and is capable of operating temperatures up to 85°C. This temperature performance makes the T491A474M025AT4153 ideal for applications that require high reliability, long life, and low leakage current.

Conclusion

T491A474M025AT4153 is a type of tantalum capacitor designed to provide electrical power in a wide range of applications. Its combination of capacitance and voltage rating make it suitable for applications such as digital signal processing, power supplies, voltage converters and regulators, LCD panels, automotive electronics, and cell phones. In addition, the combination of excellent temperature characteristics, combined with the low ESR and low leakage current, make the T491A474M025AT4153 an ideal choice for a variety of high-power applications.

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