T520V477M2R5ASE012

Series:	KO-CAP® T520
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance:	470µF
Tolerance:	±20%
Voltage - Rated:	2.5V
Type:	Molded
ESR (Equivalent Series Resistance):	12 mOhm @ 100kHz
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.075" (1.90mm)
Lead Spacing:	--
Manufacturer Size Code:	V
Ratings:	--
Features:	General Purpose

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Introduction to Tantalum - Polymer Capacitors

Tantalum-Polymer capacitors make up a technology of components that store electrical energy. These capacitors are extended from tantalum technology and allow for greater capacitance, relative efficiency, and flexibility when compared to conventional electrolytic capacitors. This has allowed for increased usage and design available for electronic products. Tantalum-polymer capacitors are divided into two distinct categories: paper and liquid. Both use an electrolyte made from a conductive polymer that acts as the medium between the electrolyte and plate, allowing for a closer connection between the two surfaces and greater efficiency. The paper type has a higher maximum capacitance compared to their liquid counterparts and uses a paper core, while the liquid-type has a slight advantage in that their capacitance is relatively lower, and can also be used in a smaller form factor. The T520V477M2R5ASE012 is a type of tantalum-polymer capacitors, which is designed especially for low voltage applications, and provides reliable operation at very low C-rates of 50pF and 500pF. Additionally, the capacitors features an extended temperature range of up to +125°C and a nearly unlimited working life due to its non-degradable metal film dielectric material and low leakage current characteristics.

Application Fields for T520V477M2R5ASE012

The most common applications for T520V477M2R5ASE012 capacitor are small volume audio, RF, and data communications devices. It is often used in power supplies for medium power products, for example in medium voltage DC-DC converters and switching arrays. Additionally, the T520V477M2R5ASE012 is widely used in automotive and military environments, primarily due to its extended temperature range and high capacitance. Furthermore, it is suitable for many other applications, including telecom base stations, reliable data acquisition and instrumentation, cellular phones and ultra-low power consumption FPGA cores. The T520V477M2R5ASE012 can also be used in various communication formats such as Bluetooth, WLAN, ZigBee, voice over internet protocols (VoIP), as well as in many other communication systems. Additionally, it provides accurate storage of data in extreme temperature environments, even during high voltage surges, and supports power optimization for small mobile devices.

Working Principle of T520V477M2R5ASE012

The T520V477M2R5ASE012 is a novel type of capacitors among the wide variety of tantalum polymer capacitors. It works as an electrolytic capacitor, enabling an electric field to be established between two electrodes on a dielectric substrate. The capacity of the capacitor is determined by the charge stored in the dielectric material, which consists mainly of polymer electrolyte suspended within the dielectric. The operation of the capacitor is based upon the combination of the molecular interaction between the electrolyte and the dielectric, in combination with the porosity of the dielectric material. These capacitors have a very low equivalent series resistance (ESR) when compared with conventional capacitors, allowing for a longer life span due to their smaller equivalent leakage current. This helps in improving the performance of the device and also helps in reducing the heat generated due to the operation of the device. The device also has a low dissipation factor, which increases the stability and accuracy of the capacitors. The T520V477M2R5ASE012 capacitor is highly durable, and is able to withstand high temperatures and extended usage. Additionally, it has a wide voltage range, low heat generation, and high susceptibility to shock and vibration which allows for an extended service life.

Conclusion

The T520V477M2R5ASE012 is a type of tantalum-polymer capacitors that is most suitable for low voltage applications, especially in small volume audio, RF, and data communication devices. It offers a wide temperature range, high capacitance and low ESR, which provides improved performance and longer life span. The capacitor\'s design also features low heat generation, high susceptibility to shock and vibration, as well as wide voltage range, further making it an ideal choice for a variety of applications.

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