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

47437 Products showing for Capacitors

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In Stock
KEMET 10000μF Aluminium Electrolytic Capacitor 63V dc, Screw Terminal - PEH200MD5100MU2
  • RS Stock No. 173-5148
  • Mfr. Part No. PEH200MD5100MU2
Each (In a Bag of 50)
MYR106.03
In Stock
Capacitor/2.2 ÁF/1812
  • RS Stock No. 486-539P
  • Mfr. Part No. 885012210032
Each (Supplied on a Reel)
MYR45.73
In Stock
Wurth Elektronik 220μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 257-0063P
  • Mfr. Part No. 875075661008
Each (Supplied on a Reel)
MYR34.08
In Stock
Wurth Elektronik 1μF Multilayer Ceramic Capacitor MLCC, 630V dc V, SMD
  • RS Stock No. 261-0080
  • Mfr. Part No. 885342214001
Each
MYR14.01
In Stock
Panasonic 330μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 35V dc, Surface Mount - EEEFK1V331AP
  • RS Stock No. 565-796
  • Mfr. Part No. EEEFK1V331AP
Each (In a Pack of 5)
MYR4.608
Temporarily out of stock
TDK YFF-P, Feedthrough Capacitor4V dc, Surface Mount
  • RS Stock No. 144-7112
  • Mfr. Part No. YFF15PC0G105MT000N
Each (On a Reel of 10000)
MYR0.315
In Stock
Wurth Elektronik 100μF Through Hole Polymer Capacitor, 16V dc
  • RS Stock No. 839-2136
  • Mfr. Part No. 870025374001
Each (In a Pack of 5)
MYR3.192
In Stock
KEMET C27 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 3μF, Chassis Mount
  • RS Stock No. 441-9278
  • Mfr. Part No. C274AC34300SA0J
Each
MYR24.87
Currently unavailable
TDK YFF-SC, Feedthrough Capacitor50V dc, Surface Mount
  • RS Stock No. 144-7139
  • Mfr. Part No. YFF18SC1H102MT0H0N
Each (On a Reel of 10000)
MYR0.41
In Stock
Vishay 220μF Aluminium Electrolytic Capacitor 400V dc, Snap-In - MAL215746221E3
  • RS Stock No. 321-0452
  • Mfr. Part No. MAL215746221E3
Each
MYR47.01
Currently unavailable
KEMET 10000μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - ALC70A103CF063
  • RS Stock No. 185-9519
  • Mfr. Part No. ALC70A103CF063
Each
MYR44.34
In Stock
KEMET 22000μF Aluminium Electrolytic Capacitor 63V dc, Screw Terminal - ALS30A223KE063
  • RS Stock No. 381-8595P
  • Mfr. Part No. ALS30A223KE063
Each (Supplied in a Box)
MYR151.22
In Stock
Schneider Electric Power Factor Correction Capacitor (PFC) 41.7kvar 50kvar
  • RS Stock No. 288-7145
  • Mfr. Part No. BLRCH417A500B40
Each
MYR1,209.51
In Stock
AVX 47μF Surface Mount Polymer Capacitor, 25V dc
  • RS Stock No. 249-0416
  • Mfr. Part No. TCJD476M025R0060E
Each (On a Tape of 10)
MYR5.159
In Stock
KEMET 560μF Surface Mount Polymer Capacitor, 25V dc
  • RS Stock No. 209-5440P
  • Mfr. Part No. A768MS567M1ELAV017
Each (Supplied on a Reel)
MYR9.11
Last RS stock
KEMET Single Layer Ceramic Capacitor (SLCC) 1nF 250V ac ±20% Y5U Dielectric, C900, Through Hole +125°C Max Op. Temp.
  • RS Stock No. 877-3428
  • Mfr. Part No. C901U102MYWDBA7317
Each (In a Pack of 25)
MYR0.566
In Stock
KEMET 10μF MnO2 Tantalum Capacitor 6.3V dc, T491 Series
  • RS Stock No. 169-6678
  • Mfr. Part No. T491A106M006AT
Each (On a Reel of 2000)
MYR0.475
In Stock
KEMET 80μF Aluminium Electrolytic Capacitor 220V ac, Snap-In - 080MS22ABMA1STD
  • RS Stock No. 151-1549
  • Mfr. Part No. 080MS22ABMA1STD
Each
MYR31.73
Temporarily out of stock
TDK Single Layer Ceramic Capacitor (SLCC) 2nF 40kV dc ±10% Z5T Dielectric, UHV, Screw Terminal +85°C Max Op. Temp.
  • RS Stock No. 741-6972P
  • Mfr. Part No. UHV-9A
Each (Supplied in a Tray)
MYR363.88
In Stock
Schneider Electric Power Factor Correction Capacitor (PFC) 25kvar 30kvar
  • RS Stock No. 288-7141
  • Mfr. Part No. BLRCH250A300B40
Each
MYR1,253.73
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