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. 255-0311
Mfr. Part No.B41456B9479M000
BrandEPCOS
MYR345.43
Each
units
47000 µF Electrolytic 100 V dc Screw Mount 76.9 (Dia.) x 143.2mm 143.2mm - - 76.9mm -40°C +85°C - - 12000h
RS Stock No. 172-6889
Mfr. Part No.ALP22A102DD200
BrandKEMET
MYR54.167
Each (In a Bag of 36)
units
1000 µF Electrolytic 200 V dc Through Hole 40 x 55mm - 55mm - 40mm -40°C +85°C - - 26000 h @ +85 °C/200V dc/Ir
RS Stock No. 711-1539
BrandRS PRO
MYR8.51
Each (In a Pack of 2)
units
6800 µF Electrolytic 50 V dc Through Hole 25 (Dia.) x 44mm 44mm 44mm - 25mm -40°C +105°C - 12mm 2000h
RS Stock No. 519-4059
Mfr. Part No.UPS1E101MED
BrandNichicon
MYR1.354
Each (In a Pack of 5)
units
100 µF Electrolytic 25 V dc Through Hole 6.3 (Dia.) x 11mm 11mm - - 6.3mm -55°C +105°C - 2.5mm 2000h
RS Stock No. 227-1276
Mfr. Part No.ALP22A102DD200
BrandKEMET
MYR56.68
Each
units
1000 µF Electrolytic 200 V dc Through Hole 40 x 55mm - 55mm - 40mm -40°C +85°C - - 26000 h @ +85 °C/200V dc/Ir
RS Stock No. 846-6916
Mfr. Part No.LGU1E103MELA
BrandNichicon
MYR12.13
Each
units
10000 µF Electrolytic 25 V dc Through Hole 25 (Dia.) x 35mm 35mm - - 25mm -40°C +105°C - 10mm 3000h
RS Stock No. 171-0679
Mfr. Part No.UPS1E101MED
BrandNichicon
MYR0.525
Each (In a Bag of 200)
units
100 µF Electrolytic 25 V dc Through Hole 6.3 (Dia.) x 11mm 11mm - - 6.3mm -55°C +105°C - 2.5mm 2000h
RS Stock No. 173-0285
BrandRS PRO
MYR17.382
Each (In a Bag of 1000)
units
6800 µF Electrolytic 50 V dc Through Hole 25 (Dia.) x 44mm 44mm 44mm - 25mm -40°C +105°C - 12mm 2000h
RS Stock No. 167-1461
Mfr. Part No.LGU1E103MELA
BrandNichicon
MYR8.803
Each (In a Bag of 250)
units
10000 µF Electrolytic 25 V dc Through Hole 25 (Dia.) x 35mm 35mm - - 25mm -40°C +105°C - 10mm 3000h
RS Stock No. 171-1134
Mfr. Part No.B41456B9479M000
BrandEPCOS
MYR323.834
Each (In a Box of 16)
units
47000 µF Electrolytic 100 V dc Screw Mount 76.9 (Dia.) x 143.2mm 143.2mm - - 76.9mm -40°C +85°C - - 12000h
RS Stock No. 715-2678
Mfr. Part No.UPW1E102MHD
BrandNichicon
MYR2.846
Each (In a Pack of 5)
units
1000 µF Electrolytic 25 V dc Through Hole 12.5 (Dia.) x 20mm 20mm - - 12.5mm -55°C +105°C - 5mm 7000h
RS Stock No. 165-3923
Mfr. Part No.UPW1E102MHD
BrandNichicon
MYR1.421
Each (In a Box of 100)
units
1000 µF Electrolytic 25 V dc Through Hole 12.5 (Dia.) x 20mm 20mm - - 12.5mm -55°C +105°C - 5mm 7000h
RS Stock No. 756-7664
Mfr. Part No.EKXJ451ELL150MJ25S
MYR5.892
Each (In a Pack of 5)
units
15 µF Electrolytic 450 V dc Through Hole 10 x 25mm 25mm - - 10mm -25°C +105°C - 5mm 12000h
RS Stock No. 170-0373
Mfr. Part No.EKXJ451ELL150MJ25S
MYR1.838
Each (In a Box of 1000)
units
15 µF Electrolytic 450 V dc Through Hole 10 x 25mm 25mm - - 10mm -25°C +105°C - 5mm 12000h
RS Stock No. 921-3258
Mfr. Part No.EEUEE2G150
BrandPanasonic
MYR2.562
Each (In a Bag of 100)
units
15 µF Electrolytic 400 V dc Through Hole 12.5 (Dia.) x 20mm 20mm - - 12.5mm -25°C +105°C - 5mm 10000h
RS Stock No. 699-7537
Mfr. Part No.EEUEE2G150
BrandPanasonic
MYR4.336
Each (In a Pack of 5)
units
15 µF Electrolytic 400 V dc Through Hole 12.5 (Dia.) x 20mm 20mm - - 12.5mm -25°C +105°C - 5mm 10000h
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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
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Mfr. Part No.35YXF33M5X11
BrandRubycon
MYR0.26
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
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Mfr. Part No.UVZ1H682MRD
BrandNichicon
MYR10.872
Each (In a Box of 250)
units
6800 µF Electrolytic 50 V dc Through Hole 22 (Dia.) x 50mm 50mm - - 22mm -55°C +105°C - 10mm 1000h
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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