F930J477MNCAJ6 Capacitors

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Tantalum Capacitors & F930J477MNCAJ6 application field and working principle

Tantalum capacitors are electrolytic capacitors that use a porous tantalum anode, a non-solvent electrolyte, and an anode foil cathode. The tantalum anode is formed by using a mixture of tantalum powder, carbon and a binder to form a pellet-like structure, and then sintered. By providing a uniform distribution of small anode pores, a high specific surface area for electrolyte immersion and active particle decomposition, and a low internal impedance, the capacitor operates effectively at high frequencies.

The tantalum capacitor F930J477MNCAJ6 series, manufactured by AVX Corporation, provides a number of solutions for a wide range of applications. Its high volumetric efficiency makes it ideal for space-constrained and high-density applications, while its superior electrical characteristics and wide temperature range make it suitable for power conditioning in military, commercial and industrial applications.

Application Field

The F930J477MNCAJ6 series of tantalum capacitors can be widely used in industrial and medical, military and aerospace, automotive, consumer and electronic systems. For example, Apple\'s iPhone uses the F930J477MNCAJ6 series of tantalum capacitors, which is placed at the interface between the touchscreen and the board, providing a strong, low-inductance environment to filter out unwanted signals and stabilizing the circuit.

They can also be used in automotive engine control systems, as well as in a variety of consumer and entertainment products such as Bluetooth speakers and MP3 players. For military and aerospace use, these capacitors provide a high degree of EMI and ESD protection, as well as their excellent high frequency and temperature characteristics.

Working Principle

Tantalum capacitors F930J477MNCAJ6 use a sintered tantalum anode with an electrolytic solution, typically organic or non-solvent, rather than the traditional electrolytic or electrochemical double layer. The porous structure of the anode provides three key advantages - high capacitance per unit volume, extremely low equivalent series resistance (ESR), and high temperature stability.

To create a capacitor using this design, two electrodes are sandwiched between two dielectric materials. A tantalum electrode is used as the anode and is coated with a thin layer of oxide to create a porous oxide/electrolyte interface. The oxide/electrolyte interface absorbs electrons, creating an electric double layer that stores electrical energy. This double layer then acts as a dielectric, separating the anode from the cathode.

The current flowing through the capacitor creates a reverse electrolytic current through the anode insulation layer. This current can modify the parameters of the capacitor, and will continuously charge and discharge the device throughout operation. In addition, the electric double layer generated by the electrolyte layer also creates a barrier between the anode and the cathode, preventing ion exchange and blocking any potential problems caused by electrochemical corrosion.

Conclusion

The F930J477MNCAJ6 series of tantalum capacitors offer high volumetric efficiency, superior electrical characteristics, wide temperature range and excellent EMI and ESD protection. The series of capacitors can be used in a variety of applications, ranging from industrial and medical, military and aerospace, automotive, consumer and electronic systems. The high quality of the tantalum capacitor is due to its porous structure, which ensures a high capacitance per unit volume, extremely low ESR, and high temperature stability.

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