F931D685KAA Capacitors

Tantalum Capacitors

A tantalum capacitor (also known as a tantalum electrolytic capacitor) is a type of electrolytic capacitor, a component of electronic circuits. It is a polarized capacitor with two electrodes, a capacitance that is typically more than 1 μF, and a low Working voltage (≤ 160 V). F931D685KAA is a type of Tantalum Capacitors.

Application Field

Tantalum Capacitors are used in a wide range of applications, such as in digital cameras, audio and video equipment, high-current switching power supplies, and portable devices. The characteristics of the tantalum capacitors make them suitable for these circuits, as they offer good frequency stability, high capacity, long service life and long storage life. This makes them ideal for a range of digital product designs.

Tantalum capacitors are also used in audio/video equipment, including CD and DVD players, amplifiers, receivers, and stereos. They are typically employed to filter low-frequency signals, improve signal-to-noise ratio, reduce harmonic distortion, and provide noise reduction. These capacitors are also used in high-density memory boards, where their small size, low profile, and low working voltage are important.

F931D685KAA is specifically designed to be used as a high-frequency, high-current signal filter in mobile phones and other portable devices. It can also be used as power supply filtering in notebooks, laptops, and PDAs, as well as in desktop computers.

Working Principle

Tantalum capacitors work on the same basic principle as other electrolytic capacitors. They consist of two metal foils separated by an electrolyte. A voltage is applied across the two metal “plates” – the anode and cathode – which causes an electric current to flow through the electrolyte. This current creates an electric charge which builds up on the plates and creates an electric field. This field is stored energy and is discharged when the voltage across the plate is reversed.

The F931D685KAA in particular has a low working voltage of 4.5V. Its anode consists of a layer of tantalum and is protected by an oxide layer, while its cathode is formed of manganese dioxide and an organic conductor. This makes it suitable for use in high-frequency, high-current signal filter applications.

Tantalum capacitors are characterized by their small size and high reliability. They are ideal for use in high-density boards and other applications where size and reliability are critical.

Conclusion

Tantalum capacitors are an important component of electronic circuits. The F931D685KAA, in particular, is specifically designed to be used in high-frequency, high-current signal filter applications in portable electronics. Its anode and cathode structures, combined with its low working voltage, make it suitable for these applications.