Aluminium Capacitors

Aluminium capacitors are a type of electrolytic capacitor. A capacitor is a two-terminal electrical component that can store energy, somewhat like a battery. Aluminium capacitors are polarised, meaning that the energy can only flow in a single direction. High purity grade Aluminium is used to create the anode foil and the cathode foil upon which electrolysis is applied to form an extremely thin insulating layer of aluminium oxide, which acts as the dielectric of the capacitor. Aluminium capacitors are found in many applications such as power supplies, computer motherboards and domestic appliances.

Dependent on the nature of the Electrolyte, capacitors may also be referred to as “wet” meaning they have a liquid electrolyte or solid. Solid Electrolytes may be hybridized with Aluminium but normally refers to Polymer or Tantalum based capacitors


Types of Aluminium Capacitors


Aluminium Electrolytic Capacitors


Electrolytic capacitors consist of an electrolyte which is a liquid or gel that consists of a large concentration of ions, and when voltage is applied across its terminals, it leads to charges being stored on the anode and cathode foils. The electric charge that can be stored by the capacitor is measured in Farads but usually in the range from nanofarads to millifarads. .Aluminium capacitors are used where high capacitance values to provide smoothing and filtering functions in the circuit. Commonly used in DC Power supplies due to their large capacitance and their compact size which helps to reduce the ripple voltage. Aluminium Electrolytic capacitors have reasonable Equivalent Series Resistance (ESR) but have the lowest leakage current from all capacitor types.


Polymer Electrolytic Capacitors


Polymer capacitors (also are known as polymer electrolytic capacitors or polymer e caps) have conductive polymer as their electrolyte material within a layered aluminium design. These capacitors combine unique properties from the polymer material in terms of high conductivity, extended temperature range and no risk of drying out – to make a capacitor that offers large capacitance and very low ESR (equivalent series resistance) with high ripple current capability and offer a longer operating life. Polymer capacitors offer a lot of package options between 2.2 to 470 microfarad


Hybrid Capacitors


Hybrid capacitors (polymer hybrid aluminium capacitors) are a mix of wet electrolyte and solid polymer. In this sense, they combine the best of both electrolytes. These capacitors offer high endurance, low ESR, and a high tolerance for ripple current. Hybrid capacitors also feature stable electric characteristics at high frequencies whilst maintaining reliability. The liquid electrolyte keeps the Leakage current very low and also allows self-repairing of the aluminium foils which prevent a drop in capacitance.


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RS Stock No. 706-3468
BrandRS PRO
kr 81,21
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6800µF Electrolytic 63V dc Through Hole 30 (Dia.) x 50mm 50mm 50mm - 30mm -40°C +105°C 10mm - 2000h
RS Stock No. 170-1042
BrandRS PRO
kr 49,535
Each (In a Box of 70)
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6800µF Electrolytic 63V dc Through Hole 30 (Dia.) x 50mm 50mm 50mm - 30mm -40°C +105°C 10mm - 2000h
RS Stock No. 170-1268
BrandRS PRO
kr 0,256
Each (In a Bag of 1000)
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10µF Electrolytic 63V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 707-6625
BrandRS PRO
kr 5,262
Each (In a Pack of 10)
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470µF Electrolytic 16V dc Through Hole 10 (Dia.) x 17mm 17mm 17mm - 10mm -40°C +105°C - - 1000h
RS Stock No. 170-1128
BrandRS PRO
kr 3,705
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470µF Electrolytic 16V dc Through Hole 10 (Dia.) x 17mm 17mm 17mm - 10mm -40°C +105°C - - 1000h
RS Stock No. 711-1573
BrandRS PRO
kr 0,419
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10µF Electrolytic 63V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 711-1671
BrandRS PRO
kr 0,464
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1µF Electrolytic 100V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 170-1235
BrandRS PRO
kr 4,168
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2200µF Electrolytic 35V dc Through Hole 13 (Dia.) x 26mm 26mm 26mm - 13mm -40°C +105°C 5mm - 2000h
RS Stock No. 711-1346
BrandRS PRO
kr 6,61
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2200µF Electrolytic 35V dc Through Hole 13 (Dia.) x 26mm 26mm 26mm - 13mm -40°C +105°C 5mm - 2000h
RS Stock No. 173-0254
BrandRS PRO
kr 0,192
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22µF Electrolytic 10V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 170-1012
BrandRS PRO
kr 0,463
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1µF Electrolytic 50V dc Through Hole 4 (Dia.) x 5mm 5mm 5mm - 4mm -40°C +105°C 1.5mm - 1000h
RS Stock No. 170-1282
BrandRS PRO
kr 0,464
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1µF Electrolytic 100V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 706-0440
BrandRS PRO
kr 0,653
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1µF Electrolytic 50V dc Through Hole 4 (Dia.) x 5mm 5mm 5mm - 4mm -40°C +105°C 1.5mm - 1000h
RS Stock No. 711-0933
BrandRS PRO
kr 0,497
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100µF Electrolytic 16V dc Through Hole 6.3 (Dia.) x 11mm 11mm 11mm - 6.3mm -40°C +105°C 2.5mm - 1000h
RS Stock No. 170-1075
BrandRS PRO
kr 2,308
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4.7µF Electrolytic 63V dc Through Hole 6 (Dia.) x 13mm 13mm 13mm - 6mm -40°C +105°C - - 1000h
RS Stock No. 711-0848
BrandRS PRO
kr 1,304
Each (In a Pack of 25)
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1000µF Electrolytic 10V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -40°C +105°C 3.5mm - 2000h
RS Stock No. 173-0282
BrandRS PRO
kr 12,967
Each (In a Bag of 100)
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100µF Electrolytic 400V dc Through Hole 18 (Dia.) x 31mm 31mm 31mm - 18mm -25°C +105°C 7.5mm - 2000h
RS Stock No. 170-1265
BrandRS PRO
kr 0,221
Each (In a Bag of 1000)
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2.2µF Electrolytic 63V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C 2mm - 1000h
RS Stock No. 170-1167
BrandRS PRO
kr 0,464
Each (In a Bag of 1000)
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100µF Electrolytic 16V dc Through Hole 6.3 (Dia.) x 11mm 11mm 11mm - 6.3mm -40°C +105°C 2.5mm - 1000h
RS Stock No. 711-2096
BrandRS PRO
kr 8,37
Each (In a Pack of 2)
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100µF Electrolytic 400V dc Through Hole 18 (Dia.) x 31mm 31mm 31mm - 18mm -25°C +105°C 7.5mm - 2000h
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