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Tantalum Capacitors

A tantalum capacitor is an electrolytic type of capacitor. It is the most widely used type of electrolytic capacitor, and is made of a metal oxide etched into a thin film of tantalum, which acts as the dielectric. It is widely used in applications requiring high capacitance in a small form factor.

The T491X477K004ZT is a type of tantalum capacitor. It is constructed with a high-temperature hermetic seal, and has a maximum working voltage of 10 volts.

Application Field

T491X477K004ZT tantalum capacitors are mainly used in consumer electronics, industrial controls, medical devices, and automotive applications. They are used as filters, to provide noise or transient suppression, and for power supply decoupling. They are particularly suited for use in low voltage applications.

In consumer electronics, they are used in various power supplies, from mobile phone chargers to game consoles and televisions. In industrial control applications, they are often used for motor control, and in devices such as starters, contactors, and overload relays.

In medical device applications, they are used as power supplies for pacemakers, defibrillators, and other life-saving equipment. In automotive applications, they are used in airbag controllers, seat control modules, and other safety-critical systems.

Working Principle

T491X477K004ZT capacitors use a tantalum anode, electrolytic oxide dielectric, and tantalum cathode to store energy in the form of an electric charge. When a voltage is applied across the anode and cathode, electricity flows from the anode to the cathode, charging the capacitor in the process. When the capacitor is fully charged, it produces an electric field across its dielectric layer and stores potential energy.

When a current is then drawn from the device, the field across the dielectric is disrupted, and energy is released in the form of an electric current. The capacitor then begins to discharge, releasing energy until it is returned to its starting state. This cycle of charging and discharging allows the capacitor to act as a miniature battery, storing and releasing energy on demand.

T491X477K004ZT capacitors have a very low ESR (equivalent series resistance), which allows them to be used in high frequency circuits. This makes them well suited for power supply decoupling, which is the process of reducing noise or spikes on power supply lines. The capacitors are also used in audio circuits, as they can reduce “pop” noises that occur when devices are turned on or off.

Conclusion

T491X477K004ZT capacitors are high-quality, reliable, and versatile devices. They are widely used in a variety of applications, from consumer electronics to industrial control and automotive systems. They are well suited for use in low voltage applications, due to their low equivalent series resistance, and ability to store and release energy on demand.

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