T491B475M010AT4380

Lifetime @ Temp.:	2000 Hrs @ 125°C
Failure Rate:	--
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric)
Mounting Type:	Surface Mount
Series:	T491
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	3.5 Ohm
Type:	Molded
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	4.7µF
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to Tantalum Capacitors

Tantalum capacitors are equipped with special properties that make them suitable for applications in the electronics industry. They are widely used when a high capacitance value, Low leakage current, High reliability, and higher PSR (Power Supply Rejection) are required. An example of one of these devices is the T491B475M010AT4380 capacitor. Through analysis of this capacitor\'s application field and working principle, we will gain a better understanding of the operations and limitations of such units.

Application and Specifications

The T491B475M010AT4380 is one type of Tantalum capacitor and it has a series feature in the numbering that sets it apart from the other Tantalum series. This series of radial through-hole surface mount capacitor has a size of 4.9mm x 7.5mm x 1.0mm and a maximum working voltage of 34VDC.This type of capacitor is designed for use in the following generalized applications:• DC-DC Converter output filtering• Automotive systems• Motor control• Lighting systems• Audio amplifier output filtering• Battery/coin cell charging • Input duty/charging circuits • SMPS output filtering • Telecommunication • Defense As well as these general categories, the capacitor can also be used in any application requiring moderately high power and high audio frequency characteristics.

Construction

The T491B475M010AT4380 consists of two main components: the capacitor body and the anode/cathode assembly. The capacitor body is made up of a high-grade, high-purity tantalum powder that is compacted into a sintered anode disk. High-grade epoxy is then applied to the disk before being sintered in an oven to ensure maximum performance.The anode/cathode assembly is comprised of a glass or ceramic sleeve, which is used to insulate the anode from the cathode, as well as a polyethylene or polypropylene dielectric which acts as an insulating layer between the anode and the cathode. The sleeve is then filled with a tantalum pentoxide dielectric which serves as the capacitor\'s medium for electrical charge storage.

Operation

Like all other capacitors, the T491B475M010AT4380 works by storing an electrical charge between two conductive plates. In this particular device, the anode and cathode are the two conductive plates. Furthermore, these plates are separated by a dielectric which acts as an insulator and prevents the two plates from short-circuiting. When a voltage is applied to the capacitor, electrons will flow from the anode to the cathode, building up a charge on each plate. This charge creates an electrostatic field between the two plates, and thus, a voltage is stored in the capacitance.When the source of the voltage is removed, the charges on the plates will dissipate, thus releasing the stored energy in the form of a current that flows from the capacitor back to the source.

Conclusion

In conclusion, the T491B475M010AT4380 is a type of tantalum capacitor used in various applications requiring a high capacitance value, low leakage current and a high operating temperature. It is constructed of two components: a capacitor body and an anode/cathode assembly. When a voltage is applied to the device, it stores a charge on the two conductive plates and releases it back when the voltage is removed. The capacitor is suitable for use in a variety of electronic and defense applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description