T540D157M006BH8505

Tantalum - Polymer Capacitors

The T540D157M006BH8505 is a tantalum polymer capacitor, a type of metalized capacitor specifically designed and engineered for use in a broad range of exciting and demanding applications. The tantalum-polymer capacitor is among the highest performing, most reliable, and highest quality capacitors available in the market today.

Capacitor Construction

The basic construction of the tantalum polymer capacitor is composed of tantalum metal powder, a high-grade ceramic powder, and a solid polymer material, all of which are encased in a non-reactive non-conductive resin case or housing. The tantalum metal powder is sintered or cut into a pellet from a solid block of tantalum metal, henceforth known as the anode. The ceramic powder, known as the dielectric, is processed and treated to increase the dielectric properties and protect the capacitor from high temperatures as well as various levels of electromagnetic interference. The second element of the capacitor is referred to as the cathode, and is made from a solid polymer substance.

Electrical Characteristics

The majority of tantalum-polymer capacitors exhibit relatively low electrical loss due to their small physical size, high ESR values, and low self-induction. The high ESR values of the tantalum polymer capacitors make them suitable for circuits where a low impedance power supply is required, and they achieve this by exhibiting low impedance over a wide frequency range. The low self-induction also makes them suitable for high frequency applications.

Application Field and Working Principle

Tantalum-polymer capacitors are most often used in demanding applications where a high temperature and low impedance power supply is required. A primary application for the T540D157M006BH8505 tantalum-polymer capacitor is in smart automotive electronic systems, such as electronic control units for fuel injection, power steering, and airbag systems. Additionally, it is commonly used in computer peripherals, automotive engine control systems, and various other electronic devices that require a reliable power source.

The T540D157M006BH8505 is essentially a two-terminal device capable of storing an electrical charge in an insulated case. When a voltage is applied to the capacitors terminals, an electric field is created across the oxide dielectric material. This electric field produces a charge that is stored on both sides of the capacitors dielectric material. The charged atoms of the dielectric material creates a space charge at the electrodes, which is inversely proportional to the applied voltage. In this way, a capacitor is able to store energy in the form of electric charge.

Safety and Reliability

Tantalum-polymer capacitors are considered extremely safe, due to the use of the non-reactive non-conductive resin case for housing. The housing protects the internal components of the capacitor, allowing it to withstand a variety of temperatures, voltages, and environmental conditions. Furthermore, the high-grade ceramic dielectric has excellent longevity, allowing the capacitor to retain its electrical characteristics over an extended period of time. This combination of safety, longevity, and reliability make the T540D157M006BH8505 tantalum-polymer capacitor an excellent choice for use in a wide range of demanding applications.

Conclusion

Tantalum-polymer capacitors, such as the T540D157M006BH8505, offer increased safety and reliability for a variety of demanding applications. The use of the non-reactive, non-conductive resin housing, high quality ceramic dielectric, and low electrical loss components provide robust protection and performance for electronic systems. In this way, the tantalum-polymer capacitor has become one of the most trusted and reliable power sources for demanding applications.