T86C474K050EBSS

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Introduction to Tantalum Capacitors

Tantalum capacitors are non-polarized, electrolytic capacitors with an unusually high capacitance to volume ratio. The dielectric is a layer of metal oxide, usually Ta2O5, deposited on the surface of a tantalum metal powder core which is the anode. They are made with either solid or wet electrolytes.

T86C474K050EBSS

The T86C474K050EBSS is a tantalum capacitor with a low profile and exceptional volumetric efficiency. It has an operating temperature range between -55°C to +125°C and a rated capacitance between 25-2,200µF. With a voltage rating of 16 to 100 VDC, this capacitor is an ideal choice for power or battery-operated electronic equipment, such as computers, PDAs, and cell phones.

Application Fields of T86C474K050EBSS

T86C474K050EBSS capacitors are suitable for a wide variety of applications. They are often used in automotive controllers, telecom equipment, inverters, power supplies, audio and video, CRT display controllers, and medical instruments. They are also found in a wide array of consumer electronics.

Working Principle of T86C474K050EBSS

The electrodes of tantalum capacitors are an anode of tantalum metal powder and a thin layer of metal oxide (Ta2O5) on the surface of the anode. This oxide layer serves as the dielectric. When a voltage is applied, free electrons from the metal powder are attracted to the oxide layer. The attraction of electrons causes an increase in surface area, creating a type of electric double layer which increases the capacitance of the device.

The capacitance of this type of capacitor is insensitive to frequency changes. However, the capacitance is affected by the temperature which can range from -55°C to +125°C. The capacitance also decreases when the voltage rating is exceeded.

Conclusion

The T86C474K050EBSS is a surface-mount, non-polarized tantalum capacitor with a low profile and excellent volumetric efficiency. It has a wide operating temperature range of -55°C to +125°C and a broad capacitance range between 25-2,200µF. This capacitor is suitable for use in automotive controllers, telecom equipment, inverters, power supplies, audio and video, CRT display controllers, and medical instruments. It works by creating an electric double layer that increases the surface area and capacitance of the device.

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