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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Description Price Capacitance Technology Voltage Mounting Type Dimensions Height Length Depth Diameter Minimum Operating Temperature Maximum Operating Temperature Construction Lead Pitch Lifetime
RS Stock No. 526-1171
Mfr. Part No.EEUFM1A332
BrandPanasonic
$1.816
Each (In a Pack of 5)
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3300 µF Electrolytic 10 V dc Through Hole 12.5 (Dia.) x 25mm 25mm - - 12.5mm -40°C +105°C - 5mm 7000h
RS Stock No. 920-4989
Mfr. Part No.EEUFM1A332
BrandPanasonic
$1.44
Each (In a Bag of 100)
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3300 µF Electrolytic 10 V dc Through Hole 12.5 (Dia.) x 25mm 25mm - - 12.5mm -40°C +105°C - 5mm 7000h
RS Stock No. 315-0962
Mfr. Part No.EEUFC1J101
BrandPanasonic
$0.874
Each (In a Pack of 5)
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100 µF Electrolytic 63 V dc Through Hole 10 (Dia.) x 12.5mm 12.5mm - - 10mm -55°C +105°C - 5mm 3000h
RS Stock No. 871-2710
Mfr. Part No.SLPX103M063H7P3
$9.15
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10000 µF Electrolytic 63 V dc Through Hole 35 x 40mm - 40mm - 35mm -40°C +85°C - 10mm 1000 (Shelf) h, 3000 (Endurance) h
RS Stock No. 628-3829
Mfr. Part No.EEUFC1J101B
BrandPanasonic
$1.066
Each (In a Pack of 5)
units
100 µF Electrolytic 63 V dc Through Hole 10 (Dia.) x 12.5mm 12.5mm - - 10mm -55°C +105°C - 5mm 3000h
RS Stock No. 381-9346
Mfr. Part No.ALS30A222MF400
BrandKEMET
$68.41
Each
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2200 µF Electrolytic 400 V dc Screw Mount 66 x 105mm 105mm 105mm - 66mm -40°C +85°C - - 19000 h @ +85 °C/400V dc/Ir, 38000 h @ +85 °C/400V dc
RS Stock No. 449-1006
Mfr. Part No.EEAFC1E100
BrandPanasonic
$0.462
Each (In a Pack of 5)
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10 µF Electrolytic 25 V dc Through Hole 4 (Dia.) x 7mm 7mm - - 4mm -55°C +105°C - 1.5mm 1000h
RS Stock No. 711-1668
BrandRS PRO
$6.06
Each (In a Pack of 2)
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4700 µF Electrolytic 63 V dc Through Hole 25 (Dia.) x 44mm 44mm 44mm - 25mm -40°C +105°C - 12mm 2000h
RS Stock No. 862-3197
Mfr. Part No.UVR1H010MDD1TD
BrandNichicon
$0.28
Each
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1 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -40°C +85°C - 2mm 2000h
RS Stock No. 173-3953
Mfr. Part No.UVR1H010MDD1TD
BrandNichicon
$0.076
Each (In a Box of 2000)
units
1 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -40°C +85°C - 2mm 2000h
RS Stock No. 920-4888
Mfr. Part No.EEAFC1E100
BrandPanasonic
$0.23
Each (In a Bag of 200)
units
10 µF Electrolytic 25 V dc Through Hole 4 (Dia.) x 7mm 7mm - - 4mm -55°C +105°C - 1.5mm 1000h
RS Stock No. 490-9901
Mfr. Part No.UHE1E470MDD
BrandNichicon
$0.584
Each (In a Pack of 5)
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47 µF Electrolytic 25 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 170-1281
BrandRS PRO
$3.993
Each (In a Bag of 25)
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4700 µF Electrolytic 63 V dc Through Hole 25 (Dia.) x 44mm 44mm 44mm - 25mm -40°C +105°C - 12mm 2000h
RS Stock No. 173-5164
Mfr. Part No.ALS30A222MF400
BrandKEMET
$63.63
Each (In a Bag of 16)
units
2200 µF Electrolytic 400 V dc Screw Mount 66 x 105mm 105mm 105mm - 66mm -40°C +85°C - - 19000 h @ +85 °C/400V dc/Ir, 38000 h @ +85 °C/400V dc
RS Stock No. 108-4083
Mfr. Part No.ECA1EHG222
BrandPanasonic
$1.59
Each (In a Bag of 100)
units
2200 µF Electrolytic 25 V dc Through Hole 12.5 (Dia.) x 25mm 25mm - - 12.5mm -55°C +105°C - 5mm 2000h
RS Stock No. 365-4161
Mfr. Part No.ECA1EHG222
BrandPanasonic
$1.908
Each (In a Pack of 5)
units
2200 µF Electrolytic 25 V dc Through Hole 12.5 (Dia.) x 25mm 25mm - - 12.5mm -55°C +105°C - 5mm 2000h
RS Stock No. 381-9087
Mfr. Part No.ALS30A472DA063
BrandKEMET
$18.80
Each
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4700 µF Electrolytic 63 V dc Screw Mount 36 x 52mm 52mm 52mm - 36mm -40°C +85°C - - 11000 h @ +85 °C/63V dc/Ir, 22000 h @ +85 °C/63V dc
RS Stock No. 526-1597
Mfr. Part No.EEUFM1H101
BrandPanasonic
$0.72
Each (In a Pack of 5)
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100 µF Electrolytic 50 V dc Through Hole 8 (Dia.) x 11.5mm 11.5mm - - 8mm -40°C +105°C - 3.5mm 3000h
RS Stock No. 711-1526
BrandRS PRO
$5.095
Each (In a Pack of 2)
units
4700 µF Electrolytic 50 V dc Through Hole 22 (Dia.) x 42mm 42mm 42mm - 22mm -40°C +105°C - 10mm 2000h
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Mfr. Part No.UHE1V221MPD6
BrandNichicon
$0.806
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220 µF Electrolytic 35 V dc Through Hole 10 (Dia.) x 12.5mm 12.5mm - - 10mm -40°C +105°C - 5mm 7000h
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