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Aluminum Capacitors

Aluminum capacitors are polarized electrolytic capacitors featuring two aluminum anode electrodes that form an insulative dielectric layer. They are designed for applications that require high voltage or large capacitance and are used in computers and other electronic devices. Computer grade capacitors are used for various industry applications including automotive, telecommunications, energy, industrial, and more.

What Is the Difference Between Aluminum Capacitors vs. Film Capacitors?

Aluminum capacitors and film capacitors are both used to provide electrical energy and smooth ripple voltage in DC applications, but each provides different characteristics and advantages. Deciding between the two types of computer grade capacitors will depend heavily on your preferences and your operating application.
Aluminum Capacitors:
  • Electrodes are made from an aluminum anode, cathode foil and paper
  • Constructed from liquid or gel materials
  • Have ten times the energy density of film capacitors
  • Max voltage of 550VCD
  • Polarized
  • Snap-in style capacitors
  • Conductive polymer aluminum solid capacitors
  • Aluminum low ESR capacitors
Film Capacitors:
  • Has electrodes made from metal-coated plastic
  • Constructed from dry materials
  • Tolerates higher voltages than aluminum capacitors
  • Max Voltage of 1500VDC (Might be higher)
  • Nonpolarized 

Computer Grade Capacitors Provide High Voltage for Electronics Applications

PUI provides electrolytic capacitors in a range of configurations and voltage ranges to meet the requirements of your high voltage application. Our aluminum capacitors include:
  • Low Impedance
  • Hi Temp
  • Long Life
  • Surface mount aluminum electrolytic capacitors
  • Multilayer ceramic chip capacitors

Conductive Polymer Aluminum Solid Capacitors

Conductive polymer aluminum solid capacitors provide super low ESR, high temperature resistance and high ripple current capacity. These electrolytic capacitors are designed for use in DC-DC converters, voltage regulators and decoupling applications for computer motherboards. Additional features include:
  • Endurance: 15,000 hours at 105°C
  • Voltage range: 2.5 to 25Vdc
  • Capacitance tolerance: ± 20% (M)
  • RoHS compliant
  • Halogen free

Surface Mount Aluminum Electrolytic Capacitors

Surface mount aluminum electrolytic capacitors are non-solvent resistant computer grade capacitors that provide a high voltage range. We offer aluminum capacitors that provide the following features:
  • Endurance: 2,000 hours at 105°C
  • Voltage range: 35&50Vdc, 160 to 450Vdc
  • Capacitance tolerance: ± 20% (M)
  • RoHS compliant

Miniature Aluminum Electrolytic Capacitors 

Miniature aluminum electrolytic capacitors that are non-solvent resistant and help minimize ESR. Additional features low impedance aluminum capacitors include:
  • Endurance: 1,000 to 5,0000 or 4,000 to 10,000 hours at 105°C
  • Voltage range: 6.3 to 100Vdc
  • Capacitance tolerance: ± 20% (M)
  • RoHS compliant

Contact PUI to Request a Quote for Computer Grade Capacitors

Contact PUI today to learn more about our aluminum capacitors or to request a quote for electronics and audio devices including capacitors, transducers, connectors and more.
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