Aluminium Capacitor | Electrolytic Capacitor | RS
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    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

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    Aluminium Electrolytic Capacitors

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    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.

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    Polymer Electrolytic Capacitors

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    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

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    Hybrid Capacitors

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    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.

    16253 Products showing for Aluminium Capacitors

    RS PRO
    2200µF
    Aluminium Electrolytic
    16V dc
    Axial, Through Hole
    13 (Dia.) x 22mm
    22mm
    22mm
    -
    13mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    1A
    RS
    ±20%
    RS PRO
    2200µF
    Aluminium Electrolytic
    25V dc
    Radial, Through Hole
    10 (Dia.) x 25mm
    25mm
    25mm
    -
    10mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    1.18A
    RS
    ±20%
    RS PRO
    1000µF
    Aluminium Electrolytic
    50V dc
    Axial, Through Hole
    16 (Dia.) x 33mm
    33mm
    33mm
    -
    16mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    955mA
    RS
    ±20%
    RS PRO
    330nF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    4 (Dia.) x 7mm
    7mm
    7mm
    -
    4mm
    -40°C
    105°C
    -
    -
    1.5mm
    1000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    5mA
    RS
    ±20%
    RS PRO
    22µF
    Aluminium Electrolytic
    63V dc
    Radial, Through Hole
    5 (Dia.) x 11mm
    11mm
    11mm
    -
    5mm
    -40°C
    105°C
    -
    -
    2mm
    1000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    75mA
    RS
    ±20%
    RS PRO
    47µF
    Aluminium Electrolytic
    50V dc
    Axial, Through Hole
    6 (Dia.) x 16mm
    16mm
    16mm
    -
    6mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    115mA
    RS
    ±20%
    RS PRO
    470µF
    Aluminium Electrolytic
    63V dc
    Radial, Through Hole
    13 (Dia.) x 26mm
    26mm
    26mm
    -
    13mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    700mA
    RS
    ±20%
    RS PRO
    3300µF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    18 (Dia.) x 36mm
    36mm
    36mm
    -
    18mm
    -40°C
    105°C
    -
    -
    7.5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    1.78A
    RS
    ±20%
    RS PRO
    100µF
    Aluminium Electrolytic
    35V dc
    Axial, Through Hole
    8 (Dia.) x 16mm
    16mm
    16mm
    -
    8mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    205mA
    RS
    ±20%
    RS PRO
    220µF
    Aluminium Electrolytic
    16V dc
    Axial, Through Hole
    8 (Dia.) x 16mm
    16mm
    16mm
    -
    8mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    220mA
    RS
    ±20%
    RS PRO
    150µF
    Aluminium Electrolytic
    400V dc
    Snap-In
    25 (Dia.) x 35mm
    35mm
    35mm
    -
    25mm
    -25°C
    105°C
    -
    -
    10mm
    2000h
    -
    -
    <=0.02 CV @ 5 min
    Polar
    900mA
    RS
    ±20%
    RS PRO
    470µF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    10 (Dia.) x 20mm
    20mm
    20mm
    -
    10mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    590mA
    RS
    ±20%
    RS PRO
    470µF
    Aluminium Electrolytic
    35V dc
    Radial, Through Hole
    10 (Dia.) x 20mm
    20mm
    20mm
    -
    10mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    520mA
    RS
    ±20%
    RS PRO
    2200µF
    Aluminium Electrolytic
    16V dc
    Radial, Through Hole
    10 (Dia.) x 20mm
    20mm
    20mm
    -
    10mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    980mA
    RS
    ±20%
    RS PRO
    1000µF
    Aluminium Electrolytic
    25V dc
    Axial, Through Hole
    13 (Dia.) x 22mm
    22mm
    22mm
    -
    13mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    760mA
    RS
    ±20%
    RS PRO
    3300µF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    18 (Dia.) x 36mm
    36mm
    36mm
    -
    18mm
    -40°C
    105°C
    -
    -
    7.5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    1.78A
    RS
    ±20%
    RS PRO
    10µF
    Aluminium Electrolytic
    63V dc
    Axial, Through Hole
    6 (Dia.) x 13mm
    13mm
    13mm
    -
    6mm
    -40°C
    105°C
    -
    -
    -
    1000h
    -
    -
    <=0.02 CV or 3 μA @ 5 min
    Polar
    48mA
    RS
    ±20%
    RS PRO
    2.2µF
    Aluminium Electrolytic
    250V dc
    Radial, Through Hole
    6 (Dia.) x 11mm
    11mm
    11mm
    -
    6mm
    -25°C
    105°C
    -
    -
    2.5mm
    1000h
    -
    -
    <=0.03 CV or 3 μA @ 1 min
    Polar
    35mA
    RS
    ±20%
    RS PRO
    680µF
    Aluminium Electrolytic
    35V dc
    Radial, Through Hole
    13 (Dia.) x 21mm
    21mm
    21mm
    -
    13mm
    -40°C
    105°C
    -
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    750mA
    RS
    ±20%
    RS PRO
    1000µF
    Aluminium Electrolytic
    16V dc
    Radial, Through Hole
    8 (Dia.) x 16mm
    16mm
    16mm
    -
    8mm
    -40°C
    105°C
    -
    -
    3.5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    570mA
    RS
    ±20%
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