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 Lead Pitch Construction Lifetime
RS Stock No. 711-1110
BrandRS PRO
€0.111
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. 170-1196
BrandRS PRO
€82.60
1 Bag of 1000
Bag(s)
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. 315-0619
Mfr. Part No.EEUFC1E102
BrandPanasonic
€0.668
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 - 5000h
RS Stock No. 107-9630
Mfr. Part No.EEUFC1E102
BrandPanasonic
€0.369
Each (In a Bag of 100)
units
1000 µF Electrolytic 25 V dc Through Hole 12.5 (Dia.) x 20mm 20mm - - 12.5mm -55°C +105°C 5mm - 5000h
RS Stock No. 526-1266
Mfr. Part No.EEUFM1C102
BrandPanasonic
€0.638
Each (In a Pack of 5)
units
1000 µF Electrolytic 16 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 920-5009
Mfr. Part No.EEUFM1C102
BrandPanasonic
€0.291
Each (In a Bag of 200)
units
1000 µF Electrolytic 16 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 171-0679
Mfr. Part No.UPS1E101MED
BrandNichicon
€0.089
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. 519-4059
Mfr. Part No.UPS1E101MED
BrandNichicon
€0.214
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. 920-5093
Mfr. Part No.EEUFM1E681
BrandPanasonic
€0.277
Each (In a Bag of 200)
units
680 µF Electrolytic 25 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 526-1569
Mfr. Part No.EEUFM1E681
BrandPanasonic
€0.62
Each (In a Pack of 5)
units
680 µF Electrolytic 25 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 172-6939
Mfr. Part No.ALS31A332NF400
BrandKEMET
€44.413
Each (In a Box of 12)
units
3300 µF Electrolytic 400 V dc Screw Mount 77 x 105mm 105mm 105mm - 77mm -40°C +85°C - - 20000 h @ +85 °C/400V dc/Ir, 40000 h @ +85 °C/400V dc
RS Stock No. 381-9740
Mfr. Part No.ALS31A332NF400
BrandKEMET
€48.86
Each
units
3300 µF Electrolytic 400 V dc Screw Mount 77 x 105mm 105mm 105mm - 77mm -40°C +85°C - - 20000 h @ +85 °C/400V dc/Ir, 40000 h @ +85 °C/400V dc
RS Stock No. 228-6666
Mfr. Part No.ECA1CM221
BrandPanasonic
€0.214
Each (In a Pack of 5)
units
220 µF Electrolytic 16 V dc Through Hole 6.3 (Dia.) x 11.2mm 11.2mm - - 6.3mm -40°C +85°C 2.5mm - 2000h
RS Stock No. 107-7580
Mfr. Part No.ECA1CM221
BrandPanasonic
€0.068
Each (In a Bag of 200)
units
220 µF Electrolytic 16 V dc Through Hole 6.3 (Dia.) x 11.2mm 11.2mm - - 6.3mm -40°C +85°C 2.5mm - 2000h
RS Stock No. 839-8982
Mfr. Part No.860040578014
€1.395
Each (In a Pack of 2)
units
1000 µF Electrolytic 35 V dc Through Hole 13 (Dia.) x 25mm 25mm - - 13mm -40°C +105°C 5mm - 10000h
RS Stock No. 920-6705
Mfr. Part No.EEUFM1V471
BrandPanasonic
€0.291
Each (In a Bag of 200)
units
470 µF Electrolytic 35 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 766-0088
Mfr. Part No.EEUFR1H470
BrandPanasonic
€0.136
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. 850-6058
Mfr. Part No.TE1307-E3
BrandVishay
€3.12
Each
units
50 µF Electrolytic 50 V dc Through Hole 9 (Dia.) x 24mm - 24mm - 9mm -40°C +105°C - - -
RS Stock No. 526-1884
Mfr. Part No.EEUFM1V471
BrandPanasonic
€0.632
Each (In a Pack of 5)
units
470 µF Electrolytic 35 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -40°C +105°C 5mm - 5000h
RS Stock No. 923-2824
Mfr. Part No.EEUFR1H470
BrandPanasonic
€0.117
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
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