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.


...
Read more Read less

Filters

Viewing 1 - 20 of 1496 products
Results per page
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. 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. 374-910
Mfr. Part No.EKY-500ELL1R0ME11D
$0.434
Each (In a Pack of 5)
units
1 µF Electrolytic 50 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 170-0623
Mfr. Part No.EKMQ401VSN331MQ45S
$5.42
Each (In a Box of 200)
units
330 µF Electrolytic 400 V dc Through Hole 25.4 (Dia.) x 45mm - 45mm - 25.4mm -25°C +105°C - 10mm 2000h
RS Stock No. 841-4725
Mfr. Part No.EKMQ401VSN331MQ45S
$8.11
Each
units
330 µF Electrolytic 400 V dc Through Hole 25.4 (Dia.) x 45mm - 45mm - 25.4mm -25°C +105°C - 10mm 2000h
RS Stock No. 170-0573
Mfr. Part No.EGPA350ELL102MK25S
$0.973
Each (In a Box of 1000)
units
1000 µF Electrolytic 35 V dc Through Hole 12.5 (Dia.) x 25mm - 25mm - 12.5mm -40°C +125°C - 5mm 5000h
RS Stock No. 814-3142
Mfr. Part No.EGPA350ELL102MK25S
$2.508
Each (In a Pack of 5)
units
1000 µF Electrolytic 35 V dc Through Hole 12.5 (Dia.) x 25mm - 25mm - 12.5mm -40°C +125°C - 5mm 5000h
RS Stock No. 841-4747
Mfr. Part No.EKMQ451VSN271MR40S
$7.30
Each
units
270 µF Electrolytic 450 V dc Through Hole 30 (Dia.) x 40mm - 40mm - 30mm -25°C +105°C - 10mm 2000h
RS Stock No. 170-0630
Mfr. Part No.EKMQ451VSN271MR40S
$5.22
Each (In a Box of 200)
units
270 µF Electrolytic 450 V dc Through Hole 30 (Dia.) x 40mm - 40mm - 30mm -25°C +105°C - 10mm 2000h
RS Stock No. 374-326
Mfr. Part No.EKMG6R3ELL332MJ20S
$1.126
Each (In a Pack of 5)
units
3300 µF Electrolytic 6.3 V dc Through Hole 10 (Dia.) x 20mm 20mm - - 10mm -55°C +105°C - 5mm 1000h
RS Stock No. 841-4864
Mfr. Part No.EKMQ451VSN271MQ50S
$8.50
Each
units
270 µF Electrolytic 450 V dc Through Hole 25.4 (Dia.) x 50mm - 50mm - 25.4mm -25°C +105°C - 10mm 2000h
RS Stock No. 170-0687
Mfr. Part No.ELXS451VSN271MQ45S
$5.75
Each (In a Box of 200)
units
270 µF Electrolytic 450 V dc Through Hole 25.4 (Dia.) x 45mm - 45mm - 25.4mm -25°C +105°C - 10mm 5000h
RS Stock No. 812-2814
Mfr. Part No.EKY-500ELL100ME11D
$0.279
Each (In a Pack of 50)
units
10 µF Electrolytic 50 V dc Through Hole 5 x 11mm - 11mm - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 170-0662
Mfr. Part No.EKMQ451VSN271MQ50S
$5.68
Each (In a Box of 200)
units
270 µF Electrolytic 450 V dc Through Hole 25.4 (Dia.) x 50mm - 50mm - 25.4mm -25°C +105°C - 10mm 2000h
RS Stock No. 374-932
Mfr. Part No.EKY-500ELL100ME11D
$0.396
Each (In a Pack of 5)
units
10 µF Electrolytic 50 V dc Through Hole 5 (Dia.) x 11mm 11mm - - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 170-0617
Mfr. Part No.EKMQ401VSN681MA45S
$8.89
Each (In a Box of 200)
units
680 µF Electrolytic 400 V dc Through Hole 35 (Dia.) x 45mm - 45mm - 35mm -25°C +105°C - 10mm 2000h
RS Stock No. 914-3737
Mfr. Part No.ELXS451VSN271MQ45S
$8.58
Each
units
270 µF Electrolytic 450 V dc Through Hole 25.4 (Dia.) x 45mm - 45mm - 25.4mm -25°C +105°C - 10mm 5000h
RS Stock No. 170-0528
Mfr. Part No.EKY-500ELL100ME11D
$0.09
Each (In a Box of 3000)
units
10 µF Electrolytic 50 V dc Through Hole 5 x 11mm - 11mm - 5mm -40°C +105°C - 2mm 5000h
RS Stock No. 841-4700
Mfr. Part No.EKMQ401VSN681MA45S
$12.70
Each
units
680 µF Electrolytic 400 V dc Through Hole 35 (Dia.) x 45mm - 45mm - 35mm -25°C +105°C - 10mm 2000h
RS Stock No. 170-0510
Mfr. Part No.EKY-250ELL471MH20D
$0.182
Each (In a Box of 1000)
units
470 µF Electrolytic 25 V dc Through Hole 8 x 20mm - 20mm - 8mm -40°C +105°C - 3.5mm 7000h