TCX111T100L1G

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors (AECs) are types of capacitors which use an electrolyte to achieve higher capacitance than other types of capacitors. AECs are polarized and are used extensively in power electronic applications, such as motor drives, power supplies, voltage regulators, switch-mode power supplies, and automated circuit protection devices.

The TCX111T100L1G is a type of AEC most commonly involved in industrial applications where its large capacitance and extended temperature ratings offer superior performance in a variety of demanding environments. This AEC is enclosed in a hermetically sealed case, which provides protection against mechanical and environmental hazards, including extreme temperatures, shock, vibration, humidity, chemical exposure, and impact.

Application Field

The TCX111T100L1G AEC is designed for industrial applications. This AEC has an extremely high voltage rating of 1100V with a temperature range from -40°C to +125°C for extended periods of time without deteriorating. It provides superior electrical performance, very high reliability, and long service life and is ideal for applications such as:

• Motor control
• AC and DC drives
• Automotive
• Switch-mode power supplies
• Power supply voltage regulation
• Control circuits
• High voltage applications

Working Principle

AECs are constructed from two electrodes separated by an ionically conductive solvent, referred to as an electrolyte. The positive electrode, called the anode, is typically composed of aluminum, while the negative electrode is a chemically modified version of aluminum. The combination of these two electrodes creates a three-dimensional molecular structure in which the positive charge from the anode is attracted to the negative charge from the cathode.

When a voltage is applied to the AEC, the electrostatic polarization of the device creates an electric field between the two electrodes. This electric field then increases the current flow between the electrodes and as the current passes through the device, ions in the electrolyte are forced to move and flow into the device.

The movement of ions into the device creates an capacitance across the electrolyte and gives the AEC its unique maximum capacitance and relatively low equivalent series resistance (ESR). This allows the AEC to store and then discharge electrical current, making it useful for a wide range of practical applications.

Conclusion

The TCX111T100L1G is an example of an Aluminum Electrolytic Capacitor designed for industrial applications where its high voltage and extended temperature ratings are key performance factors. Its working principle and application field make it highly suitable for motor control, AC and DC drives, automotive, switch-mode power supplies, power supply voltage regulation, control circuits, and high voltage applications.