T491X107K025AT7280

T491X107K025AT7280 is a high-performance polymer tantalum capacitor (also known as solid tantalum or Ta-polymer capacitor) with polarized electrodes and a solid dielectric. It provides excellent performance, reliability and stability over a wide range of operating conditions. It is designed for use in applications where high reliability, long life and minimal maintenance are critical. These applications include telecommunications, telemetry, wireless equipment, radar systems, military communications, aerospace and automotive.

T491X107K025AT7280’s structure consists of a solid electrolyte of moisture-resistant tantalum oxide sandwiched between two tantalum anodes (positive and negative). The dielectric is an oxide-based material which acts as an insulator between the two anodes. This provides a low-impedance, non-polarized connection, which maintains its capacitance over a wide range of temperatures and humidity. This capacitor also has a wide frequency range, making it suitable for use in broadband applications. The overall design of the capacitor ensures low ESR, even when operated at high voltages, and low leakage current.

In order to evaluate a T491X107K025AT7280, the following methods can be used: capacitance measurements, ESR measurements, and voltage endurance tests. The capacitance measurements provide information on how long the capacitor can maintain a stable capacitance over a given unit of time under a specified temperature and/or voltage. In addition, these measurements also accurately predict the capacitor’s life. The ESR measurements provide insights into the capacitor’s ability to resist short-term and long-term voltage surges, as well as temperature extremes.

The voltage endurance tests help determine the capacitor’s endurance to severe voltage or current swings. This is usually done depending on the application’s purpose. During this test, the capacitor is exposed to strong surges or spikes of AC or DC currents. The capacitor’s life at different voltages is then monitored using ESR measurements and capacitance measurements. The data obtained from these tests allows engineers to optimize the capacitors for their specific application.

T491X107K025AT7280 tantalum capacitors are commonly used in high-end and/or military applications that require long service life, low ESR, high temperature performance, and low leakage currents. The use of these capacitors in these applications helps ensure optimal power supply performance and reliability over extended periods of time. In addition, the tantalum oxide dielectric makes these capacitors quite reliable in handling large current spikes associated with these demanding applications.