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

46574 Products showing for Capacitors

1 / 999+
In Stock
RS PRO 10000μF Aluminium Electrolytic Capacitor 80V dc, Snap-In
  • RS Stock No. 276-6081
Subtotal (1 unit)
MYR40.86
In Stock
KEMET 4μF Polypropylene Capacitor PP 500V ac ±5% Tolerance Chassis Mount C87 Series
  • RS Stock No. 377-8756
  • Mfr. Part No. C878BF34400SA0J
Subtotal (1 unit)
MYR35.64
In Stock
KEMET C27 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 6μF, Chassis Mount
  • RS Stock No. 377-9052
  • Mfr. Part No. C274ACF4600WA0J
Subtotal (1 unit)
MYR48.71
In Stock
Murata 2.2μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±15% , Through Hole
  • RS Stock No. 841-0758
  • Mfr. Part No. RCER71H225K2K1H03B
Subtotal (1 pack of 10 units)
MYR24.23
In Stock
Rubycon 100μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - 63RX30100M10X16
  • RS Stock No. 704-7968
  • Mfr. Part No. 63RX30100M10X16
Subtotal (1 pack of 5 units)
MYR14.63
In Stock
Ducati Energia Power Electronic Capacitors (PEC)
  • RS Stock No. 163-1895
  • Mfr. Part No. 4.16.10.51.64
Subtotal (1 bag of 1 unit)
MYR165.01
In Stock
KEMET 80μF Aluminium Electrolytic Capacitor 220V ac, Snap-In - 080MS22ABMA1STD
  • RS Stock No. 151-1549
  • Mfr. Part No. 080MS22ABMA1STD
Subtotal (1 unit)
MYR31.73
In Stock
KEMET 15μF Polypropylene Capacitor PP 500V ac ±5% Tolerance Chassis Mount C87 Series
  • RS Stock No. 377-8790
  • Mfr. Part No. C878BF35150SA0J
Subtotal (1 unit)
MYR58.84
In Stock
KEMET C27 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 30μF, Chassis Mount
  • RS Stock No. 377-9131
  • Mfr. Part No. C274ACF5300WA0J
Subtotal (1 unit)
MYR71.41
In Stock
RS PRO 470μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole
  • RS Stock No. 711-1475
Subtotal (1 pack of 10 units)
MYR20.44
In Stock
TDK 10nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , Through Hole
  • RS Stock No. 194-0611
  • Mfr. Part No. FG28X7R2A103KNT00
Subtotal (1 pack of 10 units)
MYR4.42
In Stock
Panasonic 1000μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - ECA1EM102
  • RS Stock No. 727-0559
  • Mfr. Part No. ECA1EM102
Subtotal (1 pack of 10 units)
MYR15.30
In Stock
RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 10μF, Screw Mount
  • RS Stock No. 196-4680
Subtotal (1 unit)
MYR79.25
In Stock
Nichicon 6800μF Aluminium Electrolytic Capacitor 100V dc, Snap-In - LLS2A682MELC
  • RS Stock No. 846-7142
  • Mfr. Part No. LLS2A682MELC
Subtotal (1 unit)
MYR33.19
In Stock
KEMET C4AF Film Capacitor, 250V ac, 10%, 75μF, Through Hole
  • RS Stock No. 258-4203
  • Mfr. Part No. C4AF1EW5750F3BK
Subtotal (1 unit)
MYR91.98
In Stock
KEMET C28 Polypropylene Film Capacitor, 470V ac, ±5%, 6μF, Cable Mount
  • RS Stock No. 173-6226
  • Mfr. Part No. C284ACA4600AL2J
Subtotal (1 pack of 2 units)
MYR81.74
In Stock
TDK 100nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , Through Hole
  • RS Stock No. 194-0538
  • Mfr. Part No. FG28X7R1H104KNT00
Subtotal (1 pack of 10 units)
MYR4.83
In Stock
Rubycon 100μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - 63RX30100M10X16
  • RS Stock No. 704-7968P
  • Mfr. Part No. 63RX30100M10X16
Subtotal 5 units (supplied in a bag)
MYR14.63
In Stock
Vishay 820μF Aluminium Electrolytic Capacitor 400V dc, Snap-In - MAL229956821E3
  • RS Stock No. 136-2718
  • Mfr. Part No. MAL229956821E3
Subtotal (1 unit)
MYR149.66
In Stock
Panasonic 100 μF Through Hole Polymer Capacitor, 63 V
  • RS Stock No. 249-1207
  • Mfr. Part No. 63SXE100M
Subtotal (1 pack of 10 units)
MYR116.66
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