2SZE100M

Aluminum - Polymer Capacitors: 2SZE100M Applications and Working Principles

Aluminum-based polymer capacitors utilize a combination of a semi-liquid and solid-state electrolyte system, which allow them to deliver high performance and reliability. They are well suited for high-temperature, high-current, and moderately-reliable applications, as well as for low-voltage power supplies, motor drives, and switching power supply applications.

Applications

Aluminum - Polymer capacitors are typically used in applications that require a high capacitance with a very limited footprint. They are used in applications such as ceramic capacitors and tantalum capacitors, as well as applications that require high current, such as DC motors, automotive audio, and high-voltage applications in power supplies. They are also commonly used in applications that require high temperature and high voltage operation, such as in electric vehicle battery packs, as well as LED lighting and electric power tools.

Working Principles

Aluminum - Polymer capacitors are based on a semi-liquid and solid-state electrolyte system. The liquid electrolyte serves to provide the electric charge, while the solid-state electrolyte immobilizes the ions to provide an effective barrier against short-circuits and excessive charge leakage. The combination of these two elements enable aluminum-based polymer capacitors to provide high capacitance, high current handling, and high voltage operation.

The basic components of an aluminum-based polymer capacitor include an aluminum foil, a plastic insulation layer, a semi-liquid and solid-state electrolyte system, and a dry-film dielectric layer. The aluminum foil serves as the negative electrode and provides charge to the capacitor, while the plastic insulation layer helps maintain the integrity of the aluminum foil. The semi-liquid and solid-state electrolyte system helps to form an effective electrical insulator between the positive and negative electrodes and the outer casing of the capacitor. The dielectric layer provides electrical insulation between the aluminum foil and the outer casing, allowing the capacitor to maintain its charge over an extended period of time and allowing it to handle higher voltages.

When an external voltage is applied to the aluminum-based polymer capacitor, an electric field is established between the positive and negative electrodes. This field creates an electric current that passes from the negative electrode to the positive electrode and is absorbed by the electrolyte. The absorbed electrons are then stored in the solid-state electrolyte, which immobilizes the ions and helps maintain the charge in the capacitor.

Aluminum-based polymer capacitors are available in a variety of sizes and capacities, depending on their intended application. They are commonly used in a wide range of electronic devices, including computers, smartphones, tablets, digital cameras, and industrial control systems. They are highly reliable, and can withstand considerable temperature and voltage changes without degrading performance.

Summary

Aluminum-based polymer capacitors are well-suited for high-temperature, high-current, and moderately-reliable applications. They utilize a combination of a semi-liquid and solid-state electrolyte system, which allow them to deliver high performance, and reliable operation. They are commonly used in applications such as ceramic capacitors and tantalum capacitors, as well as applications that require high current, such as DC motors, automotive audio, and high-voltage applications in power supplies.