Capacitors

Capacitors are passive electrical components found in almost all electronics applications. Our range includes over 60,000 different capacitors including aluminium, tantalum, polymer, polyester film and ceramic capacitors. We source from globally renowned manufacturers AVX, Murata, KEMET, Panasonic, TDK and many more, so that you can rely on performance.

What is a capacitor and what does it do?

A capacitor is a device used to store energy as an electric charge, similar to a battery but they are able to release the charge much faster. The amount it's able to store is known as capacitance, this is measured in Farads (F). They comprise 2 metal plates (conductors) separated by an electrical insulator (dielectric).

What capacitor types are available?

There are many different types available with detailed specifications for their required function. The main elements are available in varying materials and these determine many properties of the capacitor. Some factors to consider are:

  • Metal plate material - e.g silver, tantalum, aluminium
  • Dielectric plate material - paper, film, ceramic, glass
  • Max voltage - cannot be exceeded or the device will break
  • Size - capacitance and dimensions
  • Tolerance - variance on the capacitance value
  • Mounting type - how it is fixed to the circuit
  • ESR (Equivalent series resistance) - resistance of the terminals

Applications of capacitors

Capacitors are found all around us, they are used in most electronics from fans to hybrid electric cars - there are over 500 just in a typical smartphone. Here are some of their uses:

  • Decoupling capacitors - can control high-frequency noise, removing voltage ripples from the power supply.
  • Energy storage and supply - deliver stored energy bursts quickly, like a camera flash for example.
  • Signal filtering - they are able to block low-frequency signals and allow higher-frequencies to pass through. Useful in telecommunications.
Aluminium Capacitors
Aluminium Capacitors
Array Capacitors
Array Capacitors
Capacitors Accessories
Capacitors Accessories
Feedthrough Capacitors
Feedthrough Capacitors
Film Capacitors
Film Capacitors
MLCCs - Multilayer Ceramic Capacitors
MLCCs - Multilayer Ceramic Capacitors
Mica Capacitors
Mica Capacitors
Multilayer Organic Capacitors
Multilayer Organic Capacitors
Niobium Oxide Capacitors
Niobium Oxide Capacitors
Polymer Capacitors
Polymer Capacitors
Power Factor Correction Capacitors
Power Factor Correction Capacitors
Single Layer Ceramic Capacitors
Single Layer Ceramic Capacitors
Supercapacitors
Supercapacitors
Tantalum Capacitors
Tantalum Capacitors
Variable Trimmer Capacitors
Variable Trimmer Capacitors

47041 Products showing for Capacitors

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Limited stock
Nichicon 68μF Aluminium Electrolytic Capacitor 450V dc, Snap-In - LGJ2W680MELA20
  • RS Stock No. 752-9549
  • Mfr. Part No. LGJ2W680MELA20
Each
MYR20.07
In Stock
Eaton 10F Supercapacitor -10 → +30% Tolerance 2.5V dc, Through Hole
  • RS Stock No. 763-7797P
  • Mfr. Part No. HB1030-2R5106-R
Each (Supplied in a Bag)
MYR29.00
In Stock
Vishay 220μF Aluminium Electrolytic Capacitor 16V dc, Axial, Through Hole - MAL203135221E3
  • RS Stock No. 108-5232
  • Mfr. Part No. MAL203135221E3
Each (In a Pack of 5)
MYR7.824
In Stock
Yageo 2.2μF MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 199-1990
  • Mfr. Part No. CC1206KKX7R0BB225
1 Tape of 10
MYR15.71
In Stock
Eaton 5F Supercapacitor -10 → +30% Tolerance 5.4V dc, Through Hole
  • RS Stock No. 763-7848
  • Mfr. Part No. PHV-5R4V505-R
Each
MYR94.17
In Stock
Vishay 47 μF Capacitor 100 V, Through Hole - MAL211819471E3 Axial Lead
  • RS Stock No. 280-6699
  • Mfr. Part No. MAL211819471E3
Each
MYR46.96
In Stock
RS PRO Clip for use with 63.5 mm Dia. Capacitor Nylon
  • RS Stock No. 238-7214
Each (In a Pack of 5)
MYR10.052
In Stock
Eaton 1F Supercapacitor -20 → +80% Tolerance 5.5V dc, Through Hole
  • RS Stock No. 180-4303
  • Mfr. Part No. KR-5R5V105-R
Each (In a Pack of 2)
MYR30.18
In Stock
Vishay 470μF Aluminium Electrolytic Capacitor 63V dc, Axial, Through Hole - MAL212518471E3
  • RS Stock No. 238-5620
  • Mfr. Part No. MAL212518471E3
Each
MYR18.38
In Stock
RS PRO 4.7μF Electrolytic Tantalum Electrolytic Capacitor 50V dc
  • RS Stock No. 181-4735
Each (In a Pack of 5)
MYR7.72
In Stock
Yageo 1μF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 198-8104
  • Mfr. Part No. CC0805KKX7R8BB105
Each (On a Tape of 100)
MYR0.242
In Stock
Vishay 2200 μF Capacitor 40 V, Through Hole - MAL211817222E3 Axial
  • RS Stock No. 280-6696
  • Mfr. Part No. MAL211817222E3
Each (In a Box of 100)
MYR31.208
In Stock
Nichicon 100μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - UBT2A101MHD8
  • RS Stock No. 762-1821P
  • Mfr. Part No. UBT2A101MHD8
Each (Supplied in a Bag)
MYR6.48
Last RS stock
Vishay 5F Supercapacitor EDLC -20 → +50% Tolerance, 230 EDLC-HV 3V dc, Through Hole
  • RS Stock No. 260-8666
  • Mfr. Part No. MAL223051011E3
Each
MYR10.09
In Stock
Eaton 0.33F Supercapacitor -20 → +80% Tolerance 5.5V dc, Through Hole
  • RS Stock No. 180-4305
  • Mfr. Part No. KR-5R5V334-R
Each (In a Pack of 2)
MYR13.935
In Stock
KEMET Single Layer Ceramic Capacitor (SLCC) 4.7nF 250V ac ±10% Y5U Dielectric, C900, Through Hole +125°C Max Op. Temp.
  • RS Stock No. 877-3661
  • Mfr. Part No. C971U472MUWDBA7317
Each (In a Pack of 5)
MYR8.332
Last RS stock
Rubycon 470μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - 25ZL470MEFC10X16
  • RS Stock No. 703-7282P
  • Mfr. Part No. 25ZL470MEFC10X16
Each (Supplied in a Bag)
MYR3.064
In Stock
Nichicon 330μF Aluminium Electrolytic Capacitor 200V dc, Snap-In - LGU2D331MELZ
  • RS Stock No. 844-2819
  • Mfr. Part No. LGU2D331MELZ
Each (In a Pack of 2)
MYR14.965
In Stock
Yageo 20pF MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 242-3928
  • Mfr. Part No. CC0805JRNPO9BN200
Each (On a Tape of 100)
MYR0.125
In Stock
Vishay Aluminium Electrolytic Capacitor 220μF 63V dc 10mm Axial 021 ASM Series, Through Hole Electrolytic, ±20%
  • RS Stock No. 324-5278P
  • Mfr. Part No. MAL202118221E3
Each (Supplied in a Box)
MYR14.222
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