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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

    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 PRO
    470µF
    Aluminium Electrolytic
    25V dc
    Radial, Through Hole
    8 (Dia.) x 14mm
    14mm
    14mm
    -
    8mm
    -40°C
    +105°C
    -
    3.5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    415mA
    RS
    ±20%
    RS PRO
    470µF
    Aluminium Electrolytic
    25V dc
    Radial, Through Hole
    8 (Dia.) x 14mm
    14mm
    14mm
    -
    8mm
    -40°C
    +105°C
    -
    3.5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    415mA
    RS
    ±20%
    RS PRO
    100nF
    Aluminium Electrolytic
    50V 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
    1.3mA
    RS
    ±20%
    RS PRO
    100nF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    5 (Dia.) x 11mm
    11mm
    11mm
    -
    5mm
    -40°C
    +105°C
    -
    2mm
    1000h
    -
    -
    <lt/>=0.01 CV or 3 μA @ 1 min
    Polar
    1.3mA
    RS
    ±20%
    RS PRO
    4700µF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    22 (Dia.) x 42mm
    42mm
    42mm
    -
    22mm
    -40°C
    +105°C
    -
    10mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    2.05A
    RS
    ±20%
    RS PRO
    4700µF
    Aluminium Electrolytic
    50V dc
    Radial, Through Hole
    22 (Dia.) x 42mm
    42mm
    42mm
    -
    22mm
    -40°C
    +105°C
    -
    10mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    2.05A
    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
    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
    10µF
    Aluminium Electrolytic
    50V 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
    50mA
    RS
    ±20%
    RS PRO
    1µF
    Aluminium Electrolytic
    50V 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
    14mA
    RS
    ±20%
    RS PRO
    10µF
    Aluminium Electrolytic
    50V 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
    50mA
    RS
    ±20%
    RS PRO
    1µF
    Aluminium Electrolytic
    50V 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
    14mA
    RS
    ±20%
    RS PRO
    100µF
    Aluminium Electrolytic
    400V dc
    Radial, Through Hole
    18 (Dia.) x 31mm
    31mm
    31mm
    -
    18mm
    -25°C
    +105°C
    -
    7.5mm
    2000h
    -
    -
    <lt/>=0.03 CV or 3 μA @ 1 min
    Polar
    435mA
    RS
    ±20%
    RS PRO
    100µF
    Aluminium Electrolytic
    400V dc
    Radial, Through Hole
    18 (Dia.) x 31mm
    31mm
    31mm
    -
    18mm
    -25°C
    +105°C
    -
    7.5mm
    2000h
    -
    -
    <=0.03 CV or 3 μA @ 1 min
    Polar
    435mA
    RS
    ±20%
    RS PRO
    6800µF
    Aluminium Electrolytic
    63V dc
    Snap-In
    30 (Dia.) x 50mm
    50mm
    50mm
    -
    30mm
    -40°C
    +105°C
    -
    10mm
    2000h
    -
    -
    <=0.02 CV @ 5 min
    Polar
    3.6A
    RS
    ±20%
    RS PRO
    6800µF
    Aluminium Electrolytic
    63V dc
    Snap-In
    30 (Dia.) x 50mm
    50mm
    50mm
    -
    30mm
    -40°C
    +105°C
    -
    10mm
    2000h
    -
    -
    <=0.02 CV @ 5 min
    Polar
    3.6A
    RS
    ±20%
    RS PRO
    1000µF
    Aluminium Electrolytic
    25V dc
    Radial, Through Hole
    10 (Dia.) x 15mm
    15mm
    15mm
    -
    10mm
    -40°C
    +105°C
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    740mA
    RS
    ±20%
    RS PRO
    1000µF
    Aluminium Electrolytic
    25V dc
    Radial, Through Hole
    10 (Dia.) x 15mm
    15mm
    15mm
    -
    10mm
    -40°C
    +105°C
    -
    5mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    740mA
    RS
    ±20%
    RS PRO
    4700µF
    Aluminium Electrolytic
    63V dc
    Radial, Through Hole
    25 (Dia.) x 44mm
    44mm
    44mm
    -
    25mm
    -40°C
    +105°C
    -
    12mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    Polar
    2.2A
    RS
    ±20%
    RS PRO
    4700µF
    Aluminium Electrolytic
    63V dc
    Radial, Through Hole
    25 (Dia.) x 44mm
    44mm
    44mm
    -
    25mm
    -40°C
    +105°C
    -
    12mm
    2000h
    -
    -
    <=0.01 CV or 3 μA @ 1 min
    -
    2.2A
    RS
    ±20%
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