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
Al-THT -40°C to 105°C 400V 10uF 10x16mm Nichicon 0 10µF 400V dc Through Hole Electrolytic 10 Dia. x 16mm 16mm - - -40°C 10mm +105°C 10000h 5mm CY 150mA 0.26 (Short Term) μA - 0.24% ±20% Polar -
Al-THT -40°C to 105°C 400V 10uF 10x16mm Nichicon 0 10µF 400V dc Through Hole Electrolytic 10 Dia. x 16mm 16mm - - -40°C 10mm +105°C 10000h 5mm CY 150mA 0.26 (Short Term) μA - 0.24% ±20% Polar -
Capacitor Alu Radial -40°C to 105°C 400V Nichicon 0 47µF 400V dc Through Hole Electrolytic 16 Dia. x 20mm 20mm - - -40°C 16mm +105°C 10000h 7.5mm CY 520mA 0.852 (Short Term) μA - 0.24% ±20% Polar -
Capacitor Alu Radial -40°C to 105°C 400V Nichicon 0 47µF 400V dc Through Hole Electrolytic 16 Dia. x 20mm 20mm - - -40°C 16mm +105°C 10000h 7.5mm CY 520mA 0.852 (Short Term) μA - 0.24% ±20% Polar -
Capacitor Alu Radial -40°C to 105°C 50V Nichicon 0 100µF 50V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -40°C 8mm +105°C 7000h 3.5mm HE 555mA 3 μA - 0.1% ±20% Polar -
Capacitor Alu Radial -40°C to 105°C 50V Nichicon 0 100µF 50V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -40°C 8mm +105°C 7000h 3.5mm HE 555mA 3 μA - 0.1% ±20% Polar -
Capacitor Alu Radial -55°C to 105°C 100V Nichicon 0 22µF 100V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -55°C 8mm +105°C 3000h 3.5mm PJ 230mA 4 μA - 0.08% ±20% Polar -
Capacitor Alu Radial -55°C to 105°C 100V Nichicon 0 22µF 100V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -55°C 8mm +105°C 3000h 3.5mm PJ 230mA 4 μA - 0.08% ±20% Polar -
Capacitor Alu Radial -55°C to 105°C 16V Nichicon 0 220µF 16V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -55°C 8mm +105°C 3000h 3.5mm PM 460mA 4 μA - 0.16% ±20% Polar -
Capacitor Alu Radial -55°C to 105°C 16V Nichicon 0 220µF 16V dc Through Hole Electrolytic 8 Dia. x 11.5mm 11.5mm - - -55°C 8mm +105°C 3000h 3.5mm PM 460mA 4 μA - 0.16% ±20% Polar -
Capacitor Alu SMD -40°C to 105°C 400V 4. Nichicon 0 4.7µF 400V dc Surface Mount Electrolytic 10.3 x 10.3 x 10mm 10mm 10.3mm 10.3mm -40°C 10mm +105°C 3000h 4.5mm UX 40mA 175.2 (Short Term) μA - 0.25% ±20% Polar -
Capacitor Alu SMD -40°C to 105°C 400V 4. Nichicon 0 4.7µF 400V dc Surface Mount Electrolytic 10.3 x 10.3 x 10mm 10mm 10.3mm 10.3mm -40°C 10mm +105°C 3000h 4.5mm UX 40mA 175.2 (Short Term) μA - 0.25% ±20% Polar -
Capacitor Alu SMD -40°C to 85°C 25V 10uF Nichicon 0 10µF 25V dc Surface Mount Electrolytic 3.3 x 3.3 x 5.4mm 5.4mm 3.3mm 3.3mm -40°C 3mm +85°C 2000h 0.8mm WX 18mA 3 μA - 0.14% ±20% Polar -
Capacitor Alu SMD -40°C to 85°C 25V 10uF Nichicon 0 10µF 25V dc Surface Mount Electrolytic 3.3 x 3.3 x 5.4mm 5.4mm 3.3mm 3.3mm -40°C 3mm +85°C 2000h 0.8mm WX 18mA 3 μA - 0.14% ±20% Polar -
Capacitor Alu SMD -40°C to 85°C 50V 22uF Nichicon 0 22µF 50V dc Surface Mount Electrolytic 6.6 x 6.6 x 5.8mm 5.8mm 6.6mm 6.6mm -40°C 6.3mm +85°C 2000h 2.2mm UR 45mA 33 μA - 0.12% ±20% Polar -
Capacitor Alu SMD -40°C to 85°C 50V 22uF Nichicon 0 22µF 50V dc Surface Mount Electrolytic 6.6 x 6.6 x 5.8mm 5.8mm 6.6mm 6.6mm -40°C 6.3mm +85°C 2000h 2.2mm UR 45mA 33 μA - 0.12% ±20% Polar -
Capacitor Alu SMD -55°C to 105°C 100V 22 Nichicon 0 22µF 100V dc Surface Mount Electrolytic 10.3 x 10.3 x 10mm 10mm 10.3mm 10.3mm -55°C 10mm +105°C 2000h 4.5mm UX 150mA 66 (Short Term) μA - 0.08% ±20% Polar -
Capacitor Alu SMD -55°C to 105°C 100V 22 Nichicon 0 22µF 100V dc Surface Mount Electrolytic 10.3 x 10.3 x 10mm 10mm 10.3mm 10.3mm -55°C 10mm +105°C 2000h 4.5mm UX 150mA 66 (Short Term) μA - 0.08% ±20% Polar -
Capacitor Alu SMD -55°C to 105°C 16V 100 Nichicon 0 1000µF 16V dc Surface Mount Electrolytic 10.3 x 10.3 x 13.5mm 13.5mm 10.3mm 10.3mm -55°C 10mm +105°C 2000h 4.5mm CL 1.19A 3 μA - 0.16% ±20% Polar -
Capacitor Alu SMD -55°C to 105°C 16V 100 Nichicon 0 1000µF 16V dc Surface Mount Electrolytic 10.3 x 10.3 x 13.5mm 13.5mm 10.3mm 10.3mm -55°C 10mm +105°C 2000h 4.5mm CL 1.19A 3 μA - 0.16% ±20% Polar -
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