T540D477K003DH8605

Operating Temperature:	-55°C ~ 125°C
Features:	High Reliability
Ratings:	COTS
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.122" (3.10mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 125°C
Series:	KO-CAP® T540
ESR (Equivalent Series Resistance):	40 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	3V
Tolerance:	±10%
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

T540D477K003DH8605, also known as a tantalum-polymer capacitor, is a type of electrolytic capacitor featuring a combination of ceramic and electrolyte materials, with extreme temperature and voltage stability, and a high capacitance capacity. It is composed of a conductive paste with the active material embedded in a sintered parameter-controlled powder. Commonly used in the field of power management, such as automotive, consumer, and industrial electronics, these applications range from data acquisition and storage to audio filtering, power management, and low frequency pulse application.

T540D477K003DH8605 Application Field and Working Principle

T540D477K003DH8605 is usually made of a tantalum pentoxide dielectric layer and a conductive polymer element. The main application of this type of capacitor is for power management and data acquisition in a range of different fields. The working principle of this type of capacitor involves the build up of an electrostatic charge between two electrodes. They are known to have particularly low leakage currents, making them suitable for high current applications. This is mainly due to the fact that the dielectric material used is relatively thick, which allows electric fields to build up more slowly and preventing the leakage of electricity.The polymer materials used also give the tantalum-polymer capacitor the advantage of being highly resistant to breakdowns, which is a major benefit for power applications. This type of capacitor is also renowned for its high insulation resistance and high thermal resistance as well as its excellent frequency response and stability.The temperature coefficient of these capacitors also limits the temperature range within which they can be operated. However, they are generally suited to low temperature environments, such as cryogenic conditions, and areas of high humidity, like greenhouses and other such conditions. Finally, the capacitance value of the T540D477K003DH8605 can be tailored to the application by increasing the amount of dielectric material used, which makes them more suited to applications requiring large-scale electrostatic builds up.

Advantages of T540D477K003DH8605

The main advantages of the T540D477K003DH8605 capacitor can be summarized as follows:1. Low leakage current and high insulation resistance;2. Good temperature and voltage stability;3. High capacitance capacity;4. High resistance to breakdowns; 5. Excellent frequency response and stability; and 6. Ability to tailor the capacitor to the application by adjusting the dielectric material.

Conclusion

The T540D477K003DH8605 is a type of tantalum-polymer capacitor that has a wide range of applications in power management and data acquisition. Its advantages include low leakage current and high insulation resistance, good temperature and voltage stability, high capacitance capacity, and good frequency response and stability. The ability to tailor the capacitor to the application by adjusting the dielectric material has also been demonstrated to make it more suited to applications requiring large-scale electrostatic builds up.

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