TAJR474K025RNJ

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	--
Features:	General Purpose
Manufacturer Size Code:	R
Lead Spacing:	--
Height - Seated (Max):	0.047" (1.20mm)
Size / Dimension:	0.081" L x 0.051" W (2.05mm x 1.30mm)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	--
Series:	TAJ
ESR (Equivalent Series Resistance):	15 Ohm
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±10%
Capacitance:	0.47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors – TAJR474K025RNJ Application Field and Working Principle

Tantalum capacitors are a type of common surface-mount capacitor which utilizes a special material to store electrical charge. The TAJR474K025RNJ is a type of a tantalum capacitor from AVX Corporation. This article aims to explain the application field of TAJR474K025RNJ and its working principle.

Application Field of TAJR474K025RNJ

The TAJR474K025RNJ capacitors are mainly used in automotive electronics, consumer electronic devices, power supplies, and industrial equipment. These capacitors are ideal for system designers looking for high-performance, ultra-capacitance, and long-term stability. They are widely used in applications such as power factor correction, frequency converters, plasma TVs, digital circuits, amplifiers, and audio equipment.

Working Principle of TAJR474K025RNJ

TaJR474K025RNJ capacitors are polarized tantalum capacitors, meaning that they can only be used in one specific direction due to the polarity of their electrodes. The two main components that make up a tantalum capacitor are the anode and cathode. The anode is made out of pure tantalum metal, which has a porous structure. When a voltage is applied across the terminals, an anodic coating Layer is formed from chemical dissolution of the tantalum metal. This layer acts as a dielectric material, trapping the electrical charge and providing capacitance.The reverse leakage current in TAJR474K025RNJ capacitors is typically lower than or equal to the maximum high temperature leakage current specified in the device’s data sheet. This is because the tantalum anode’s high resistance, combined with the dielectric layer, ensure that the flow of current is kept to a minimum.

Conclusion

The TAJR474K025RNJ tantalum capacitors manufactured by AVX are widely used in automotive and consumer electronic applications due to their high-performance, ultra-capacitance, and long-term stability. Furthermore, the use of a tantalum anode combined with a dielectric layer ensures that the reverse leakage current in these capacitors is kept at a minimum. Together, these characteristics make the TAJR474K025RNJ the ideal choice for system designers in need of reliable capacitance solutions.

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