T540D477M004CH8510WAFL

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:	4V
Tolerance:	±20%
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray - Waffle

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Tantalum - Polymer Capacitors

Tantalum-polymer capacitors are emerging technologies that are rapidly becoming the preferred choice for high-frequency and high-current applications in the electronics industry. These capacitors offer superior performance characteristics, such as high-capacitance, low-tolerance, low-impedance, and low-profile designs. In this article, we will discuss the application field and working principle of T540D477M004CH8510WAFL.

Application Field

Tantalum-polymer capacitors are applicable in areas such as automotive electronics, telecommunications, industrial automation, and medical devices. The T540D477M004CH8510WAFL is ideal for automotive electronics, as it offers significant advantages over other components, such as lower ESR (Equivalent Series Resistance), higher levels of stability, better frequency response, and higher temperature rating. To put it simply, the T540D477M004CH8510WAFL ensures that currents flows through the leads without suffering from heat-related or resonance-related frequency limitations.In telecommunications, the T540D477M004CH8510WAFL offers superior performance in terms of lower ESR, high frequency operation, and excellent temperature stability. In industrial automation applications, the device offers better signal flow in the system and better response time. Furthermore, the device is also used in medical devices, where it helps in improving the reliability of the system.

Working Principle

The T540D477M004CH8510WAFL is a device that is composed of two distinct parts – namely, a tantalum anode and a polymer cathode. It works on the principle of electrochemical double layer capacitance (EDLC). This principle states that a capacitor stores electrical energy in an electrostatic field that is created between two charge electrodes. The capacitor works by allowing charges to move between two conducting surfaces (the anode and the cathode). When an electrical current is applied to the anode, a reaction takes place, resulting in ion exchange between the two electrodes. This in turn creates an electric field between the two electrodes that stores charge, thus allowing the capacitor to maintain its capacitance over longer periods of time while also providing improved performance characteristics.The fact that the T540D477M004CH8510WAFL uses a polymer cathode as opposed to a traditional type of cathode makes it more robust and able to withstand greater temperatures. The polymer cathode is also more resistant to contamination and helps reduce the risks of corrosion. It also has the ability to reduce failure rates associated with traditional tantalum capacitors, which makes it ideal for automotive and telecom applications.

Conclusion

Tantalum-polymer capacitors are emerging technologies that can provide superior performance compared to traditional capacitors. The T540D477M004CH8510WAFL is specifically designed for automotive and telecom applications, offering advantages such as lower ESR, high frequency response, better stability, and increased temperature ratings. The device is composed of two parts – a tantalum anode and a polymer cathode – and works on the principle of EDLC. It is a reliable option that can improve the reliability and performance of automotive, telecom, industrial automation, and medical systems.

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