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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. Need to switch between capacitance units for your circuit design? Easily and instantly convert capacitance values between farads, microfarads, nanofarads and picofarads with our Capacitance Conversion calculator.

Take a look at our voltage divider calculator to work out the output voltage of a resistor divider circuit for a given set of resistor values and source voltage in seconds.

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).

Looking to calculate the cutoff frequency for low-pass and high-pass filters? Our handy calculator will give you the answer you’re looking for in a matter of seconds.

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

51211 Products showing for Capacitors

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Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 247-7919P
  • Mfr. Part No. GCM32EC71H106KA03L
Subtotal 10 units (supplied on a continuous strip)
£4.41(exc. VAT)
£0.441/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 247-7912P
  • Mfr. Part No. GCM32DC72A475KE02L
Subtotal 2 units (supplied on a continuous strip)
£1.78(exc. VAT)
£0.89/unit
In Stock
Murata Single Layer Ceramic Capacitor 100 pF 1.5 kV dc, 500V ac ±10 % B Dielectric, DE1, Through Hole 125 °C Max Op.
  • RS Stock No. 172-7788
  • Mfr. Part No. DE1B3RA101KA4BQ01F
Subtotal (1 pack of 10 units)
£3.58(exc. VAT)
£0.358/unit
In Stock
Murata Single Layer Ceramic Capacitor 680 pF 1.5 kV dc, 500V ac ±10 % B Dielectric, DE1, Through Hole 125 °C Max Op.
  • RS Stock No. 172-7765
  • Mfr. Part No. DE1B3RA681KA4BQ01F
Subtotal (1 pack of 10 units)
£2.29(exc. VAT)
£0.229/unit
In Stock
Vishay Single Layer Ceramic Capacitor 1 nF 1kV dc ±10 % Y5R Dielectric, F, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 683-2119
  • Mfr. Part No. F102K39Y5RN6UK5R
Subtotal (1 pack of 25 units)
£3.425(exc. VAT)
£0.137/unit
In Stock
TDK Single Layer Ceramic Capacitor 33 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1880
  • Mfr. Part No. CC45SL3AD330JYNNA
Subtotal (1 bag of 10 units)
£2.10(exc. VAT)
£0.21/unit
In Stock
TDK B33331V Polypropylene Capacitor 6 μF 460V ac 460 V dc, Screw 2
  • RS Stock No. 200-9298
  • Mfr. Part No. B33331V7605J080
Subtotal (1 unit)
£6.43(exc. VAT)
£6.43/unit
In Stock
Wurth Elektronik 10 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 181-4094
  • Mfr. Part No. 885012005055
Subtotal (1 reel of 1000 units)
£12.00(exc. VAT)
£0.012/unit
In Stock
Panasonic 39 μF Aluminium Polymer Capacitor 100V, Through Hole - 100SXE39M+3
  • RS Stock No. 433-941
  • Mfr. Part No. 100SXE39M+3
Subtotal (1 pack of 5 units)
£11.97(exc. VAT)
£2.394/unit
In Stock
Yageo 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 199-2220P
  • Mfr. Part No. CC0402KRX5R9BB104
Subtotal 500 units (supplied on a reel)
£4.50(exc. VAT)
£0.009/unit
In Stock
Panasonic 330 μF Capacitor 25V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 708-3706P
  • Mfr. Part No. EEUFR1E331
Subtotal 10 units (supplied in a bag)
£2.44(exc. VAT)
£0.244/unit
In Stock
Wurth Elektronik 47 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-8850
  • Mfr. Part No. 860040673002
Subtotal (1 pack of 25 units)
£4.15(exc. VAT)
£0.166/unit
In Stock
WIMA MKS2 Film Capacitor 10 nF 63V ac 100 V dc, Through Hole
  • RS Stock No. 108-2643
  • Mfr. Part No. MKS2D021001A00KSSD
Subtotal (1 pack of 5 units)
£2.55(exc. VAT)
£0.51/unit
In Stock
Panasonic 10 μF Capacitor 50V dc, Surface Solder - EEEFT1H100AR 1000
  • RS Stock No. 729-6292
  • Mfr. Part No. EEEFT1H100AR
Subtotal (1 pack of 10 units)
£3.25(exc. VAT)
£0.325/unit
Last RS stock
Panasonic ECQUB Polypropylene Capacitor, ±20 %, 3.3 nF 300V ac, Through Hole
  • RS Stock No. 211-0309
  • Mfr. Part No. ECQUBAF332M
Subtotal (1 pack of 10 units)
£1.41(exc. VAT)
£0.141/unit
In Stock
Vishay 1000 μF Capacitor 50V dc, Through Hole Radial
  • RS Stock No. 280-0274
  • Mfr. Part No. MAL215061102E3
Subtotal (1 bag of 5 units)
£15.90(exc. VAT)
£3.18/unit
Currently unavailable
KEMET Single Layer Ceramic Capacitor 10 nF 300V ac ±20 % Y5V Dielectric, C900, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 877-3677P
  • Mfr. Part No. C981U103MZVDBA7317
Subtotal 10 units (supplied as a tape)
£3.11(exc. VAT)
£0.311/unit
In Stock
KEMET 120 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 173-7184
  • Mfr. Part No. T520B127M006ATE035
Subtotal (1 pack of 5 units)
£4.97(exc. VAT)
£0.994/unit
In Stock
Wurth Elektronik 10 μF Surface Aluminium Polymer Capacitor, 100V dc
  • RS Stock No. 275-9255
  • Mfr. Part No. 865060845002
Subtotal (1 tape of 10 units)
£2.72(exc. VAT)
£0.272/unit
In Stock
Wurth Elektronik 56 μF Through Hole Aluminium Polymer Capacitor, 50V dc
  • RS Stock No. 275-9393
  • Mfr. Part No. 870585775004
Subtotal (1 unit)
£1.86(exc. VAT)
£1.86/unit
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