Aluminum electrolytic capacitors

Electrolytic capacitors in SMD, radial, screwed connection and snap-in designs

Electrolytic capacitors may establish contact in different ways, depending on their physical size and possible production processes. They come with THT, SMD, snap-in and screwable contacts. Each type offers both electric and mechanical advantages and disadvantages with the best solution always depending on the customer's requirements.

Select your connection type

SMD aluminum electrolytic capacitor
  • 4 V to 450 V
  • 1 µF to 10 mF
Radial electrolytic capacitor
  • 6.3 V to 500 V
  • 1 µF to 22 mF
Snap-in aluminum electrolytic capacitor
  • 6.3 V to 600 V
  • 47 µF to 120 mF
Aluminum electrolytic capacitor with screwed connection
  • 10 V to 700 V
  • 100 µF to 1000 mF

The right fitting option for each electrolytic capacitor

As a general rule, we can say that mechanical connections become more robust as capacitors increase in weight. Options start with small, light capacitors with SMD technology and run through to capacitors with a screwed connection.

The special case: bipolar aluminum electrolytic capacitors

Bipolar electrolytic capacitors offer a special case among capacitors. If reverse polarity or a negative voltage at the anode causes permanent damage, a bipolar electrolytic capacitor can also be permanently used in alternating current applications or with negative currents. In principle, two electrolytic capacitors are connected in series to provide bipolar characteristics in an electrolytic capacitor. This is achieved through oxidation of the second aluminum film. As two same capacitors connected in series halves the overall capacity, a bipolar electrolytic capacitor always features half the capacity of a unipolar electrolytic capacitor featuring the same design.