AluminIum

Aluminium Electrolytic Capacitors

Aluminium electrolytic capacitors offer very high capacitance values per unit volume over a wide range of rated voltages. They are based on aluminium films whose surface has been enlarged by an etching process. This produces an active surface area that is a multiple of the original film area, allowing capacitances of several 100,000 µF to be reached. Thanks to their low equivalent series resistance (ESR) and series inductance (ESL), these capacitors are distinguished by high ripple current capabilities even at high clock frequencies.

In addition to the very large matrix of voltage and capacitance values, aluminium electrolytic capacitors offer several terminal configurations. These include screw terminals, snap-in and solder-star versions as well as axial and radial designs.

With their high capacitances, these capacitors are used mainly to smooth ripple voltages and to stabilize the voltage in all electrical engineering and electronics application area.

Applications:

• Frequency converters
• Converters in wind power plants
• Solar Inverters
• Uninterruptible power supplies
• Power supplies
• Medical engineering equipment
• Lamp ballasts
• Automotive electronics systems
• Consumer electronics and telecommunications equipment and systems