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. 173-3957
Mfr. Part No.UVY1H010MDD
BrandNichicon
MYR0.42
Each (In a Box of 200)
units
1 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -55°C +105°C - 2mm 1000h
RS Stock No. 845-4792
Mfr. Part No.UVZ1H682MRD
BrandNichicon
MYR16.30
Each
units
6800 µF Electrolytic 50 V dc Through Hole 22 (Dia.) x 50mm 50mm - - 22mm -55°C +105°C - 10mm 1000h
RS Stock No. 100-0046
Mfr. Part No.25SEP33M
BrandPanasonic
MYR4.515
Each (In a Bag of 200)
units
33 µF Polymer 25 V dc Through Hole 8 (Dia.) x 12mm 12mm - - 8mm -55°C +105°C - 3.5mm 3000h
RS Stock No. 172-7935
Mfr. Part No.35YXF33M5X11
BrandRubycon
MYR0.256
Each (In a Box of 3000)
units
33 µF Electrolytic 35 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 172-6930
Mfr. Part No.ALS31A222MF400
BrandKEMET
MYR177.646
Each (In a Box 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. 315-0754
Mfr. Part No.EEUFC1V102
BrandPanasonic
MYR4.442
Each (In a Pack of 5)
units
1000 µF Electrolytic 35 V dc Through Hole 12.5 (Dia.) x 25mm 25mm - - 12.5mm -55°C +105°C - 5mm 5000h
RS Stock No. 852-5096
Mfr. Part No.UPM1H010MDD
BrandNichicon
MYR0.98
Each
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1 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -55°C +105°C - 2mm 2000h
RS Stock No. 795-5566
Mfr. Part No.25SEP33M
BrandPanasonic
MYR7.624
Each (In a Pack of 5)
units
33 µF Polymer 25 V dc Through Hole 8 (Dia.) x 12mm 12mm - - 8mm -55°C +105°C - 3.5mm 3000h
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Mfr. Part No.450BXF15M10X20
BrandRubycon
MYR5.99
Each (In a Pack of 2)
units
15 µF Electrolytic 450 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -25°C +105°C - 5mm 10000h
RS Stock No. 226-6971
Mfr. Part No.PEG124MB247VQL1
BrandKEMET
MYR18.44
Each
units
47 µF Electrolytic 63 V dc Through Hole 10 x 29mm - 29mm - 10mm -40°C +125°C - - 8000 h @ +125 °C/Ir
RS Stock No. 766-0088
Mfr. Part No.EEUFR1H470
BrandPanasonic
MYR0.915
Each (In a Pack of 25)
units
47 µF Electrolytic 50 V dc Through Hole 6.3 x 11.2mm 11.2mm - - 6.3mm -40°C +105°C - 2.5mm 5000h
RS Stock No. 173-3980
Mfr. Part No.UVR1E102MPD1TD
BrandNichicon
MYR0.689
Each (In a Box of 500)
units
1000 µF Electrolytic 25 V dc Through Hole 10 x 20mm 20mm - - 10mm -40°C +85°C - 5mm 2000h
RS Stock No. 923-2824
Mfr. Part No.EEUFR1H470
BrandPanasonic
MYR0.567
Each (In a Bag of 200)
units
47 µF Electrolytic 50 V dc Through Hole 6.3 x 11.2mm 11.2mm - - 6.3mm -40°C +105°C - 2.5mm 5000h
RS Stock No. 170-1212
BrandRS PRO
MYR0.139
Each (In a Bag of 1000)
units
10 µF Electrolytic 35 V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C - 2mm 1000h
RS Stock No. 714-8562
Mfr. Part No.LGL2G221MELA25
BrandNichicon
MYR27.49
Each
units
220 µF Electrolytic 400 V dc Through Hole 25 (Dia.) x 25mm 25mm - - 25mm -25°C +105°C - 10mm 2000h
RS Stock No. 708-3497
Mfr. Part No.EEVFK1V102M
BrandPanasonic
MYR8.05
Each
units
1000 µF Electrolytic 35 V dc Surface Mount 16 (Dia.) x 16.5mm 16.5mm - - 16mm -55°C +105°C - - 5000h
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Mfr. Part No.35YXM33MEFC5X11
BrandRubycon
MYR1.10
Each (In a Pack of 25)
units
33 µF Electrolytic 35 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -25°C +105°C - 2mm 10000h
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Mfr. Part No.35YXM33MEFC5X11
BrandRubycon
MYR1.31
Each (In a Box of 3000)
units
33 µF Electrolytic 35 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -25°C +105°C - 2mm 10000h
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Mfr. Part No.LGL2G221MELA25
BrandNichicon
MYR18.344
Each (In a Bag of 250)
units
220 µF Electrolytic 400 V dc Through Hole 25 (Dia.) x 25mm 25mm - - 25mm -25°C +105°C - 10mm 2000h
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Mfr. Part No.PEG124MB247VQL1
BrandKEMET
MYR12.789
Each (In a Bag of 200)
units
47 µF Electrolytic 63 V dc Through Hole 10 x 29mm - 29mm - 10mm -40°C +125°C - - 8000 h @ +125 °C/Ir