Aluminum Capacitors

Wurth Electronics' aluminum capacitors come in both polymer and electrolytic versions

Image of Wurth's Aluminum CapacitorsWurth Electronics' wide range of aluminum capacitors are available in both polymer and electrolytic versions for use in a variety of applications.

Wurth's snap-in aluminum electrolytic capacitors are available with high capacitances and voltages, and are also available as non-polar versions. These are provided for the standard application with +85°C and 1000 hours, as are components with up to +125°C and an extended service life of up to 10,000 hours. In an aluminum electrolytic capacitor, the cathode consists of wet electrolytic whereas the anode is made of an aluminum foil. An Al2O3 oxidization layer on the anode foil operates as the dielectric. In comparison to aluminum polymer capacitors, the aluminum electrolytic capacitors are offered up to higher capacitance values (up to 3300 µF) and higher voltage ranges (up to 450 VDC).

Aluminum polymer capacitors are widely recognized as an innovation in the field of charge storage devices. It is here that Wurth Electronics offers parts in V-chip SMD and radial THD with extremely low ESR values, high capacitance, long service life, and voltages currently up to 63 VDC. Aluminum polymer capacitors contain solid conductive polymer instead of wet electrolytic.

Aluminum Polymer Capacitors

Features
Aluminum Polymer Capacitors Aluminum Electrolytic Capacitors
  • Lower ESR
  • Higher acceptable ripple current due to lower ESR
  • Higher long term stability; expected life up to 5000 h
  • No dry out phenomenon due to solid conductive polymer
  • Operating temperatures up to +125°C
  • Recommended soldering: wave
  • Wide capacitance value range
  • Load life: 2000 h @ +85°C
  • Operating temperature:
    • +40°C to +85°C for UR < 400 V
    • +25°C to +85°C for UR ≥ 400 V

Examples of Expected Life Calculation:

Aluminum Polymer Capacitor Aluminum Electrolytic Capacitor
Application Temperature (C°) Expected Life (hours) Expected Life (hours)
125 2,000 - - - - -
115 6,325 - - - - -
105 20,000 2,000 5,000 2,000 - -
95 63,246 6,325 10,000 4,000 - -
85 200,000 20,000 20,000 8,000 5,000 2,000
75 630,455 63,246 40,000 16,000 10,000 4,000
65 2,000,000 200,000 80,000 32,000 20,000 8,000
55 6,324,555 632,455 160,000 64,000 40,000 16,000
45 20,000,000 2,000,000 320,000 128,000 80,000 32,000
The first line represents typical datasheet lifetime values as an example for load life with max. temperature for different capacitors

Aluminum Electrolytic Capacitors

ImageManufacturer Part NumberDescriptionCapacitanceAvailable QuantityView Details
861111483001 datasheet linkCAP ALUM 33UF 20% 450V SNAP861111483001CAP ALUM 33UF 20% 450V SNAP33µF78 - Immediate
861111483001 product page link
861011483001 datasheet linkCAP ALUM 47UF 20% 450V SNAP861011483001CAP ALUM 47UF 20% 450V SNAP47µF91 - Immediate
861011483001 product page link
861021483001 datasheet linkCAP ALUM 33UF 20% 450V SNAP861021483001CAP ALUM 33UF 20% 450V SNAP33µF87 - Immediate
861021483001 product page link
861021483002 datasheet linkCAP ALUM 47UF 20% 450V SNAP861021483002CAP ALUM 47UF 20% 450V SNAP47µF74 - Immediate
861021483002 product page link
861111483002 datasheet linkCAP ALUM 47UF 20% 450V SNAP861111483002CAP ALUM 47UF 20% 450V SNAP47µF85 - Immediate
861111483002 product page link
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Aluminum Polymer Capacitors

ImageManufacturer Part NumberDescriptionTypeAvailable QuantityView Details
870025174001 datasheet linkCAP ALUM POLY 180UF 20% 6.3V T/H870025174001CAP ALUM POLY 180UF 20% 6.3V T/HPolymer713 - Immediate
870025174001 product page link
870025174002 datasheet linkCAP ALUM POLY 220UF 20% 6.3V T/H870025174002CAP ALUM POLY 220UF 20% 6.3V T/HPolymer628 - Immediate
870025174002 product page link
870025174005 datasheet linkCAP ALUM POLY 390UF 20% 6.3V T/H870025174005CAP ALUM POLY 390UF 20% 6.3V T/HPolymer787 - Immediate
870025174005 product page link
870025174006 datasheet linkCAP ALUM POLY 470UF 20% 6.3V T/H870025174006CAP ALUM POLY 470UF 20% 6.3V T/HPolymer752 - Immediate
870025174006 product page link
870025174004 datasheet linkCAP ALUM POLY 330UF 20% 6.3V T/H870025174004CAP ALUM POLY 330UF 20% 6.3V T/HPolymer721 - Immediate
870025174004 product page link
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ABC of Capacitors Handbook

ImageManufacturer Part NumberDescriptionTypeTitleAuthor(s)Available QuantityView Details
744013 datasheet linkABC OF CAPACITORS BOOK744013ABC OF CAPACITORS BOOKBookABC of CapacitorsStephan Menzel12 - Immediate
744013 product page link
Published: 2017-12-20