TARQ225K015

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Tantalum Capacitors

A tantalum capacitor is a type of electrolytic capacitor, a component of electronic circuits. It typically consists of a pellet of tantalum metal as an anode, covered by an insulating oxide layer that forms the dielectric, surrounded by conductive material as a cathode. It is a polarized capacitor generally requiring an electrical potential between the anode and cathode in order to function. The tantalum capacitor is widely used in electronic systems due to their small size, high capacitance, and low price relative to desired performance.

TARQ225K015 application field and working principle

The TARQ225K015 is a polymer aluminum electrolyte tantalum capacitor designed for use in mobile device, computing, and telecommunications applications. With an operating temperature range up to 125°C, the capacitor is well-suited for high-temperature applications. The capacitor also offers high-frequency stability, excellent ESR performance, and very low equivalent series resistance (ESR).

The design of the TARQ225K015 eliminates the need for a hard anode as the positive tab and uses a conductive polymer for the negative tab, allowing for a more efficient power management system. The electrolyte forms an electrical double layer on both electrodes which stores electrical charges. The stored charges create an electric field within the capacitor’s dielectric layer, influencing current through the capacitor’s terminals.

The TARQ225K015 has an effective capacitance range of 2.2µF to 15µF with 5V to 10V rated capacitance voltage, respectively. Peak ripple current rating of the capacitor is 1A. It is a RoHS-compliant device, and offered in an automotive grade for additional temperature robustness. The device also offers a very low ESR value of ≤0.055Ω

The TARQ225K015 is a low-profile, low-impedance chip capacitor designed to provide instantaneous current to a load. The capacitor offers high capacitance value with excellent reliability and performance in rugged environment. It can be used to suppress the power supply noise, low the inductance impedance and filter the RF interference from high frequency digital circuit.

The capacitor also enables designers to use smaller components and reduce system cost. The device is used in a broad range of digital products, such as mobile phones, personal computers, portable media players, and many other mobile devices. Additionally, the capacitor is used in non-mobile applications such as DC-DC converters, graphic cards, smart phones, and notebook PCs.

In conclusion, the TARQ225K015 is a polymer aluminum electrolyte tantalum capacitor designed for use in high temperature and high frequency stability applications. The capacitor provides low ESR, high capacitance values, and is an ideal solution for applications where power supply noise suppression, reducing inductance, and filter out RF interference are required. It is widely applied to mobile device, computing, and telecommunications applications, as well as other non-mobile devices such as DC-DC converters, graphics cards, smart phones, and notebook PCs.

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