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 20208 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. 170-1294
BrandRS PRO
PHP3.647
Each (In a Bag of 1000)
units
10µF Electrolytic 160V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -25°C +105°C - 3.5mm 2000h
RS Stock No. 173-0277
BrandRS PRO
PHP12.244
Each (In a Bag of 250)
units
22µF Electrolytic 400V dc Through Hole 13 (Dia.) x 21mm 21mm 21mm - 13mm -25°C +105°C - 5mm 2000h
RS Stock No. 711-1110
BrandRS PRO
PHP7.30
Each (In a Pack of 25)
units
470µF Electrolytic 25V dc Through Hole 8 (Dia.) x 14mm 14mm 14mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 711-1790
BrandRS PRO
PHP6.77
Each (In a Pack of 25)
units
10µF Electrolytic 160V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -25°C +105°C - 3.5mm 2000h
RS Stock No. 711-2059
BrandRS PRO
PHP29.38
Each (In a Pack of 5)
units
22µF Electrolytic 400V dc Through Hole 13 (Dia.) x 21mm 21mm 21mm - 13mm -25°C +105°C - 5mm 2000h
RS Stock No. 170-1196
BrandRS PRO
PHP2.605
Each (In a Bag of 1000)
units
470µF Electrolytic 25V dc Through Hole 8 (Dia.) x 14mm 14mm 14mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 711-1407
BrandRS PRO
PHP1.691
Each (In a Pack of 100)
units
1µF Electrolytic 50V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C - 2mm 1000h
RS Stock No. 711-0731
BrandRS PRO
PHP7.033
Each (In a Pack of 25)
units
1000µF Electrolytic 6.3V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 170-1149
BrandRS PRO
PHP2.474
Each (In a Bag of 1000)
units
1000µF Electrolytic 6.3V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 170-1242
BrandRS PRO
PHP0.652
Each (In a Bag of 1000)
units
1µF Electrolytic 50V dc Through Hole 5 (Dia.) x 11mm 11mm 11mm - 5mm -40°C +105°C - 2mm 1000h
RS Stock No. 711-0870
BrandRS PRO
PHP27.45
Each (In a Pack of 10)
units
3300µF Electrolytic 10V dc Through Hole 13 (Dia.) x 21mm 21mm 21mm - 13mm -40°C +105°C - 5mm 2000h
RS Stock No. 711-1769
BrandRS PRO
PHP82.30
Each (In a Pack of 2)
units
1000µF Electrolytic 100V dc Through Hole 18 (Dia.) x 41mm 41mm 41mm - 18mm -40°C +105°C - 7.5mm 2000h
RS Stock No. 170-1161
BrandRS PRO
PHP9.388
Each (In a Bag of 250)
units
3300µF Electrolytic 10V dc Through Hole 13 (Dia.) x 21mm 21mm 21mm - 13mm -40°C +105°C - 5mm 2000h
RS Stock No. 170-1291
BrandRS PRO
PHP62.66
Each (In a Bag of 50)
units
1000µF Electrolytic 100V dc Through Hole 18 (Dia.) x 41mm 41mm 41mm - 18mm -40°C +105°C - 7.5mm 2000h
RS Stock No. 173-0262
BrandRS PRO
PHP2.178
Each (In a Bag of 1000)
units
820µF Electrolytic 6.3V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 173-0281
BrandRS PRO
PHP31.58
Each (In a Bag of 100)
units
47µF Electrolytic 450V dc Through Hole 16 (Dia.) x 36mm 36mm 36mm - 16mm -25°C +105°C - 7.5mm 2000h
RS Stock No. 711-2150
BrandRS PRO
PHP86.43
Each (In a Pack of 2)
units
47µF Electrolytic 450V dc Through Hole 16 (Dia.) x 36mm 36mm 36mm - 16mm -25°C +105°C - 7.5mm 2000h
RS Stock No. 711-0738
BrandRS PRO
PHP6.736
Each (In a Pack of 25)
units
820µF Electrolytic 6.3V dc Through Hole 8 (Dia.) x 11mm 11mm 11mm - 8mm -40°C +105°C - 3.5mm 2000h
RS Stock No. 706-3446
BrandRS PRO
PHP131.02
Each (In a Pack of 2)
units
4700µF Electrolytic 35V dc Through Hole 22 (Dia.) x 35mm 35mm 35mm - 22mm -40°C +105°C - 10mm 2000h
RS Stock No. 170-1038
BrandRS PRO
PHP97.93
Each (In a Box of 200)
units
4700µF Electrolytic 35V dc Through Hole 22 (Dia.) x 35mm 35mm 35mm - 22mm -40°C +105°C - 10mm 2000h
Related Products
Great Frequency & Temperature characteristics due to the ...
Description:
Great Frequency & Temperature characteristics due to the Functional Polymer cathodeLow ESR at a high frequency rangeHigh Ripple Current capabilityLong life and high reliabilityApplications include: Switching Power Supply and DC/DC Converter; Back-Up Power Supplies of CPU (VRM etc.) and Miniature ...
KEMET’s A750 Single-Ended Conductive Polymer Aluminum Solid Electrolytic ...
Description:
KEMET’s A750 Single-Ended Conductive Polymer Aluminum Solid Electrolytic Capacitors offer longer life and greater stability across a wide range of temperatures. The A750 highly conductive solid polymer electrolyte eliminates the risk of explosion from drying out and due to its ...
KEMET’s A758 Single-Ended Conductive Polymer Aluminum Solid Electrolytic ...
Description:
KEMET’s A758 Single-Ended Conductive Polymer Aluminum Solid Electrolytic Capacitors offer longer life and greater stability across a wide range of temperatures. The A758 highly conductive solid polymer electrolyte eliminates the risk of explosion from drying out and due to its ...
KEMET’s A750 Single-Ended Conductive Polymer aluminium Solid Electrolytic ...
Description:
KEMET’s A750 Single-Ended Conductive Polymer aluminium Solid Electrolytic Capacitors offer longer life and greater stability across a wide range of temperatures. The A750 highly conductive solid polymer electrolyte eliminates the risk of explosion from drying out and due to its ...