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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Part Details Brand Stock Capacitance Voltage Mounting Type Technology Dimensions Height Length Depth Minimum Operating Temperature Diameter Maximum Operating Temperature Lifetime Lead Pitch Series Ripple Current Leakage Current Equivalent Series Resistance Dissipation Factor Tolerance Polarised Automotive Standard
RS PRO 2.2μF 160V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 8600 2.2µF 160V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 44mA 3 μA - - ±20% - -
RS PRO 220μF 10V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 7800 220µF 10V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 350mA 3 μA - 19% ±20% - -
RS PRO 10μF 25V dc Aluminium Capacitors, Through Hole 5 Dia. x 11mm +105°C 5mm 2mm RS Pro 7600 10µF 25V dc Through Hole Electrolytic 5 Dia. x 11mm 11mm - - -40°C 5mm +105°C 1000h 2mm - 56mA 3 μA - 14% ±20% - -
RS PRO 100μF 35V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 4600 100µF 35V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 390mA 3 μA - 12% ±20% - -
RS PRO 100μF 25V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 3100 100µF 25V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 370mA 3 μA - 14% ±20% - -
RS PRO 100μF 25V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 2000 100µF 25V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 300mA 2 μA - 14% ±20% - -
RS PRO 100μF 35V dc Aluminium Capacitors, Through Hole 8 Dia. x 11mm +105°C 8mm 3.5mm RS Pro 2000 100µF 35V dc Through Hole Electrolytic 8 Dia. x 11mm 11mm - - -40°C 8mm +105°C 1000h 3.5mm - 450mA 2 μA - 12% ±20% - -
RS PRO 10μF 63V dc Aluminium Capacitors, Through Hole 5 Dia. x 11mm +105°C 5mm 2mm RS Pro 2000 10µF 63V dc Through Hole Electrolytic 5 Dia. x 11mm 11mm - - -40°C 5mm +105°C 1000h 2mm - 110mA 2 μA - 9% ±20% - -
RS PRO 22μF 50V dc Aluminium Capacitors, Through Hole 5 Dia. x 11mm +105°C 5mm 2mm RS Pro 2000 22µF 50V dc Through Hole Electrolytic 5 Dia. x 11mm 11mm - - -40°C 5mm +105°C 1000h 2mm - 160mA 3 μA - 10% ±20% - -
RS PRO 330μF 16V dc Aluminium Capacitors, Through Hole 8 Dia. x 11mm +105°C 8mm 3.5mm RS Pro 2000 330µF 16V dc Through Hole Electrolytic 8 Dia. x 11mm 11mm - - -40°C 8mm +105°C 1000h 3.5mm - 560mA 3 μA - 16% ±20% - -
RS PRO 4.7μF 63V dc Aluminium Capacitors, Through Hole 5 Dia. x 11mm +105°C 5mm 2mm RS Pro 2000 4.7µF 63V dc Through Hole Electrolytic 5 Dia. x 11mm 11mm - - -40°C 5mm +105°C 1000h 2mm - 80mA 3 μA - 9% ±20% - -
RS PRO 47μF 35V dc Aluminium Capacitors, Through Hole 6 Dia. x 11mm +105°C 6mm 2.5mm RS Pro 2000 47µF 35V dc Through Hole Electrolytic 6 Dia. x 11mm 11mm - - -40°C 6mm +105°C 1000h 2.5mm - 250mA 3 μA - 12% ±20% - -
RS PRO 6.8μF 50V dc Aluminium Capacitors, Through Hole 5 Dia. x 11mm +105°C 5mm 2mm RS Pro 2000 6.8µF 50V dc Through Hole Electrolytic 5 Dia. x 11mm 11mm - - -40°C 5mm +105°C 1000h 2mm - 78mA 3 μA - 10% ±20% - -
RS PRO 820μF 6.3V dc Aluminium Capacitors, Through Hole 8 Dia. x 11mm +105°C 8mm 3.5mm RS Pro 2000 820µF 6.3V dc Through Hole Electrolytic 8 Dia. x 11mm 11mm - - -40°C 8mm +105°C 1000h 3.5mm - 420mA 3 μA - 22% ±20% - -
RS PRO 100μF 50V dc Aluminium Capacitors, Through Hole 8 Dia. x 11mm +105°C 8mm 3.5mm RS Pro 1950 100µF 50V dc Through Hole Electrolytic 8 Dia. x 11mm 11mm - - -40°C 8mm +105°C 1000h 3.5mm - 465mA 2 μA - 10% ±20% - -
RS PRO 10μF 160V dc Aluminium Capacitors, Through Hole 10 Dia. x 12mm +105°C 10mm 5mm RS Pro 1950 10µF 160V dc Through Hole Electrolytic 10 Dia. x 12mm 12mm - - -40°C 10mm +105°C 1000h 5mm - 175mA 3 μA - - ±20% - -
RS PRO 1μF 450V dc Aluminium Capacitors, Through Hole 10 Dia. x 12mm +105°C 10mm 5mm RS Pro 1950 1µF 450V dc Through Hole Electrolytic 10 Dia. x 12mm 12mm - - -25°C 10mm +105°C 1000h 5mm - 36mA 3 μA - 17% ±20% - -
RS PRO 220μF 35V dc Aluminium Capacitors, Through Hole 10 Dia. x 12mm +105°C 10mm 5mm RS Pro 1950 220µF 35V dc Through Hole Electrolytic 10 Dia. x 12mm 12mm - - -40°C 10mm +105°C 1000h 5mm - 660mA 3 μA - 12% ±20% - -
RS PRO 470μF 25V dc Aluminium Capacitors, Through Hole 10 Dia. x 12mm +105°C 10mm 5mm RS Pro 1950 470µF 25V dc Through Hole Electrolytic 10 Dia. x 12mm 12mm - - -40°C 10mm +105°C 1000h 5mm - 790mA 3 μA - 14% ±20% - -
RS PRO 6.8μF 400V dc Aluminium Capacitors, Through Hole 10 Dia. x 12mm +105°C 10mm 5mm RS Pro 1950 6.8µF 400V dc Through Hole Electrolytic 10 Dia. x 12mm 12mm - - -40°C 10mm +105°C 1000h 5mm - 140mA 3 μA - - ±20% - -
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