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. 381-9661
Mfr. Part No.ALS31A223MF100
BrandKEMET
$78.91
Each
units
22000 µF Electrolytic 100 V dc Screw Mount 66 x 105mm 105mm 105mm - 66mm -40°C +85°C - - 19000 h @ +85 °C/100V dc/Ir, 38000 h @ +85 °C/100V dc
RS Stock No. 173-5167
Mfr. Part No.ALS31A223MF100
BrandKEMET
$74.53
Each (In a Box of 16)
units
22000 µF Electrolytic 100 V dc Screw Mount 66 x 105mm 105mm 105mm - 66mm -40°C +85°C - - 19000 h @ +85 °C/100V dc/Ir, 38000 h @ +85 °C/100V dc
RS Stock No. 572-215
Mfr. Part No.EEUFC1J102U
BrandPanasonic
$2.89
Each (In a Pack of 5)
units
1000 µF Electrolytic 63 V dc Through Hole 16 (Dia.) x 31.5mm 31.5mm - - 16mm -55°C +105°C - 7.5mm 5000h
RS Stock No. 107-3075
Mfr. Part No.EEUFC1J102U
BrandPanasonic
$2.89
Each (In a Bag of 50)
units
1000 µF Electrolytic 63 V dc Through Hole 16 (Dia.) x 31.5mm 31.5mm - - 16mm -55°C +105°C - 7.5mm 5000h
RS Stock No. 170-1196
BrandRS PRO
$0.157
Each (In a Bag of 1000)
units
470 µF Electrolytic 25 V dc Through Hole 8 (Dia.) x 14mm 14mm 14mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 711-1110
BrandRS PRO
$0.218
Each (In a Pack of 25)
units
470 µF Electrolytic 25 V dc Through Hole 8 (Dia.) x 14mm 14mm 14mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 170-0672
Mfr. Part No.ELXS161VSN222MR50S
$7.84
Each (In a Box of 200)
units
2200 µF Electrolytic 160 V dc Through Hole 30 (Dia.) x 50mm - 50mm - 30mm -25°C +105°C - 10mm 5000h
RS Stock No. 914-3689
Mfr. Part No.ELXS161VSN222MR50S
$10.64
Each
units
2200 µF Electrolytic 160 V dc Through Hole 30 (Dia.) x 50mm - 50mm - 30mm -25°C +105°C - 10mm 5000h
RS Stock No. 381-9188
Mfr. Part No.ALS30A103KE100
BrandKEMET
$47.89
Each
units
10000 µF Electrolytic 100 V dc Screw Mount 51 x 82mm 82mm 82mm - 51mm -40°C +85°C - - 18000 h @ +85 °C/100V dc/Ir, 36000 h @ +85 °C/100V dc
RS Stock No. 173-1991
Mfr. Part No.ALS30A103KE100
BrandKEMET
$42.40
Each (In a Bag of 24)
units
10000 µF Electrolytic 100 V dc Screw Mount 51 x 82mm 82mm 82mm - 51mm -40°C +85°C - - 18000 h @ +85 °C/100V dc/Ir, 36000 h @ +85 °C/100V dc
RS Stock No. 315-0754
Mfr. Part No.EEUFC1V102
BrandPanasonic
$1.77
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. 108-1339
Mfr. Part No.EEUFC1V102
BrandPanasonic
$1.54
Each (In a Bag of 100)
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. 846-7139
Mfr. Part No.LLS2A332MELA
BrandNichicon
$11.51
Each
units
3300 µF Electrolytic 100 V dc Through Hole 25 (Dia.) x 50mm 50mm - - 25mm -40°C +85°C - 10mm 3000h
RS Stock No. 167-1505
Mfr. Part No.LLS2A332MELA
BrandNichicon
$8.94
Each (In a Bag of 250)
units
3300 µF Electrolytic 100 V dc Through Hole 25 (Dia.) x 50mm 50mm - - 25mm -40°C +85°C - 10mm 3000h
RS Stock No. 519-4059
Mfr. Part No.UPS1E101MED
BrandNichicon
$0.524
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. 171-0679
Mfr. Part No.UPS1E101MED
BrandNichicon
$0.203
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. 871-1966
Mfr. Part No.16SEPF1000M
BrandPanasonic
$2.84
Each (In a Pack of 2)
units
1000 µF Polymer 16 V dc Through Hole 10 x 13mm 13mm - - 10mm -55°C +105°C - 5mm 5000h
RS Stock No. 100-0066
Mfr. Part No.16SEPF1000M
BrandPanasonic
$1.88
Each (In a Bag of 200)
units
1000 µF Polymer 16 V dc Through Hole 10 x 13mm 13mm - - 10mm -55°C +105°C - 5mm 5000h
RS Stock No. 795-5512
Mfr. Part No.16SEPF1000M
BrandPanasonic
$3.04
Each (In a Pack of 2)
units
1000 µF Polymer 16 V dc Through Hole 10 x 13mm 13mm - - 10mm -55°C +105°C - 5mm 5000h
RS Stock No. 920-5074
Mfr. Part No.EEUFM1E221
BrandPanasonic
$0.399
Each (In a Bag of 200)
units
220 µF Electrolytic 25 V dc Through Hole 8 (Dia.) x 11.5mm 11.5mm - - 8mm -40°C +105°C - 3.5mm 3000h
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