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. 173-2005
Mfr. Part No.ALS30A473KE040
BrandKEMET
MYR112.553
Each (In a Bag of 24)
units
47000 µF Electrolytic 40 V dc Screw Mount 51 x 82mm 82mm 82mm - 51mm -40°C +85°C - - 18000 h @ +85 °C/40V dc/Ir, 36000 h @ +85 °C/40V dc
RS Stock No. 870-5716
Mfr. Part No.ESH225M050AC3AA
BrandKEMET
MYR0.162
Each (In a Pack of 1000)
units
2.2 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm 11mm - 5mm -40°C +105°C - 2mm 2000 h @ +105 °C/50V dc/Ir
RS Stock No. 767-2817
Mfr. Part No.400LLE4,7MEFC10X12.5
BrandRubycon
MYR2.77
Each (In a Pack of 10)
units
4.7 µF Electrolytic 400 V dc Through Hole 10 x 12.5mm 12.5mm - - 10mm -40°C +105°C - 5mm 15000h
RS Stock No. 315-0928
Mfr. Part No.EEUFC1H222
BrandPanasonic
MYR9.366
Each (In a Pack of 5)
units
2200 µF Electrolytic 50 V dc Through Hole 18 (Dia.) x 35.5mm 35.5mm - - 18mm -55°C +105°C - 7.5mm 5000h
RS Stock No. 475-9009
Mfr. Part No.USR1H010MDD
BrandNichicon
MYR0.876
Each (In a Pack of 5)
units
1 µF Electrolytic 50 V dc Through Hole 4 (Dia.) x 7mm 7mm - - 4mm -40°C +85°C - 1.5mm 2000h
RS Stock No. 870-4356
Mfr. Part No.ESY108M035AL4AA
BrandKEMET
MYR2.216
Each (In a Pack of 50)
units
1000 µF Electrolytic 35 V dc Through Hole 13 x 25mm 25mm 25mm - 13mm -40°C +105°C - 5mm 5000 h @ +105 °C/35V dc/Ir
RS Stock No. 862-3197
Mfr. Part No.UVR1H010MDD1TD
BrandNichicon
MYR0.93
Each
units
1 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -40°C +85°C - 2mm 2000h
RS Stock No. 108-1353
Mfr. Part No.EEUFC1H222
BrandPanasonic
MYR6.431
Each (In a Bag of 50)
units
2200 µF Electrolytic 50 V dc Through Hole 18 (Dia.) x 35.5mm 35.5mm - - 18mm -55°C +105°C - 7.5mm 5000h
RS Stock No. 923-2745
Mfr. Part No.EEUFR1H100
BrandPanasonic
MYR0.482
Each (In a Bag of 200)
units
10 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 170-1262
BrandRS PRO
MYR13.445
Each (In a Bag of 25)
units
4700 µF Electrolytic 50 V dc Through Hole 22 (Dia.) x 42mm 42mm 42mm - 22mm -40°C +105°C - 10mm 2000h
RS Stock No. 602-2595
Mfr. Part No.UFG1H470MPM
BrandNichicon
MYR2.362
Each (In a Pack of 5)
units
47 µF Electrolytic 50 V dc Through Hole 8 (Dia.) x 11.5mm 11.5mm - - 8mm -40°C +85°C - 3.5mm 1000h
RS Stock No. 711-1526
BrandRS PRO
MYR13.03
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
RS Stock No. 846-6966
Mfr. Part No.LGU1J682MELC
BrandNichicon
MYR29.08
Each
units
6800 µF Electrolytic 63 V dc Through Hole 35 (Dia.) x 40mm 40mm - - 35mm -40°C +105°C - 10mm 3000h
RS Stock No. 172-7993
Mfr. Part No.400LLE4,7MEFC10X12.5
BrandRubycon
MYR1.276
Each (In a Box of 1000)
units
4.7 µF Electrolytic 400 V dc Through Hole 10 x 12.5mm 12.5mm - - 10mm -40°C +105°C - 5mm 15000h
RS Stock No. 381-8589
Mfr. Part No.ALS30A473KE040
BrandKEMET
MYR106.78
Each
units
47000 µF Electrolytic 40 V dc Screw Mount 51 x 82mm 82mm 82mm - 51mm -40°C +85°C - - 18000 h @ +85 °C/40V dc/Ir, 36000 h @ +85 °C/40V dc
RS Stock No. 173-3953
Mfr. Part No.UVR1H010MDD1TD
BrandNichicon
MYR0.21
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. 862-3402
Mfr. Part No.UVR2A102MHD
BrandNichicon
MYR11.82
Each
units
1000 µF Electrolytic 100 V dc Through Hole 18 x 40mm 40mm - - 18mm -40°C +85°C - 7.5mm 2000h
RS Stock No. 167-1515
Mfr. Part No.LGU1J682MELC
BrandNichicon
MYR16.769
Each (In a Bag of 200)
units
6800 µF Electrolytic 63 V dc Through Hole 35 (Dia.) x 40mm 40mm - - 35mm -40°C +105°C - 10mm 3000h
RS Stock No. 107-1091
Mfr. Part No.EEUFC1V470
BrandPanasonic
MYR0.595
Each (In a Bag of 200)
units
47 µF Electrolytic 35 V dc Through Hole 6.3 (Dia.) x 11.2mm 11.2mm - - 6.3mm -55°C +105°C - 2.5mm 1000h
RS Stock No. 766-0084
Mfr. Part No.EEUFR1H100
BrandPanasonic
MYR0.944
Each (In a Pack of 25)
units
10 µF Electrolytic 50 V dc Through Hole 5 x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h