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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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Currently unavailable
Wurth Elektronik 1 pF Multilayer Ceramic Capacitor, 16V, PCB
  • RS Stock No. 181-3521P
  • Mfr. Part No. 885012207053
Subtotal 100 units (supplied on a continuous strip)
£21.30(exc. VAT)
£0.213/unit
In Stock
Vishay 1 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-228P
  • Mfr. Part No. VJ1206A102JXGTW1HV
Subtotal 200 units (supplied on a reel)
£12.20(exc. VAT)
£0.061/unit
In Stock
KEMET PME271 Paper Capacitor X2 275V ac 275 V dc, Through Hole
  • RS Stock No. 210-544P
  • Mfr. Part No. PME271M647KR30
Subtotal 5 units (supplied in a box)
£20.25(exc. VAT)
£4.05/unit
In Stock
Vishay 220 pF Multilayer Ceramic Capacitor, 1kV dc, 10 %, Surface
  • RS Stock No. 298-312P
  • Mfr. Part No. VJ1210Y221KBGTW1HV
Subtotal 10 units (supplied on a continuous strip)
£1.17(exc. VAT)
£0.117/unit
In Stock
Vishay 4.7 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-267P
  • Mfr. Part No. VJ1812A472JXGTW1HV
Subtotal 20 units (supplied on a continuous strip)
£7.98(exc. VAT)
£0.399/unit
Currently unavailable
NISSEI AMZ Polyester Capacitor 680 pF 50V ac 50 V dc, Through Hole 2
  • RS Stock No. 183-3183
  • Mfr. Part No. AMZ0050J68100000000
Subtotal (1 pack of 10 units)
£3.55(exc. VAT)
£0.355/unit
Currently unavailable
Murata 3.3 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 185-1931P
  • Mfr. Part No. GRM033R71C332KA88D
Subtotal 1000 units (supplied on a reel)
£3.00(exc. VAT)
£0.003/unit
In Stock
TDK B32355C Film Capacitor 1.5 μF 400V ac 400 V dc, Lead Wire 2
  • RS Stock No. 185-5427
  • Mfr. Part No. B32355C4155J019
Subtotal (1 pack of 2 units)
£9.40(exc. VAT)
£4.70/unit
In Stock
Wurth Elektronik 150 pF Surface Mount Ceramic Capacitor, 25V
  • RS Stock No. 486-184P
  • Mfr. Part No. 885012007035
Subtotal 20 units (supplied on a continuous strip)
£0.68(exc. VAT)
£0.034/unit
In Stock
Murata 470 nF Multilayer Ceramic Capacitor, 25V dc, ±5 %, Surface
  • RS Stock No. 276-3771P
  • Mfr. Part No. GRM31C5C1E474JE01L
Subtotal 10 units (supplied on a continuous strip)
£4.66(exc. VAT)
£0.466/unit
In Stock
Wurth Elektronik 680 nF Surface Mount Ceramic Capacitor, 10V, ±10 %
  • RS Stock No. 485-187P
  • Mfr. Part No. 885012206025
Subtotal 10 units (supplied on a continuous strip)
£0.60(exc. VAT)
£0.06/unit
Currently unavailable
Nichicon 150 μF Surface Polymer Capacitor, 35V dc
  • RS Stock No. 187-2189
  • Mfr. Part No. GYB1V151MCQ1GS
Subtotal (1 reel of 500 units)
£180.00(exc. VAT)
£0.36/unit
Temporarily out of stock
KEMET C27 Film Capacitor, ±5 %, 2 μF 470V ac, Through Hole
  • RS Stock No. 181-0242
  • Mfr. Part No. C274AC34200AA0J
Subtotal (1 bag of 162 units)
£300.348(exc. VAT)
£1.854/unit
In Stock
KEMET R75 Polypropylene Capacitor, 5 %, 100 nF 400 V dc 220V ac, Through Hole
  • RS Stock No. 212-6607
  • Mfr. Part No. R75MI310050H3J
Subtotal (1 pack of 20 units)
£3.68(exc. VAT)
£0.184/unit
In Stock
Samsung Electro-Mechanics 1 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 257-5895P
  • Mfr. Part No. CL10C102JB81PNC
Subtotal 100 units (supplied on a continuous strip)
£3.10(exc. VAT)
£0.031/unit
In Stock
Vishay 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 651-9998P
  • Mfr. Part No. VJ0603Y103KXAAC
Subtotal 25 units (supplied on a continuous strip)
£1.625(exc. VAT)
£0.065/unit
In Stock
TDK B32521 Film Capacitor 330 nF 250V ac 250 V dc, Through Hole 2
  • RS Stock No. 896-1199P
  • Mfr. Part No. B32521C3334J000
Subtotal 10 units (supplied in a box)
£2.28(exc. VAT)
£0.228/unit
In Stock
TDK YFF-AH, Power Line Filter 100V, 3216 100 nF, Surface
  • RS Stock No. 242-7619P
  • Mfr. Part No. YFF31AH2A104MT0Y0N
Subtotal 5 units (supplied on a continuous strip)
£3.04(exc. VAT)
£0.608/unit
In Stock
TDK B32529 Polyester Capacitor (PET) 220 nF 63V ac 63 V dc, Through Hole 2
  • RS Stock No. 241-6544
  • Mfr. Part No. B32529C0224K289
Subtotal (1 box of 3200 units)
£204.80(exc. VAT)
£0.064/unit
Last RS stock
Vishay MKP1848Se DC-Link Polypropylene Film Capacitor, 10 %, 1 μF 1.2 kV dc 1.2kV ac, Through Hole
  • RS Stock No. 243-1678
  • Mfr. Part No. MKP1848Se51012JK2A
Subtotal (1 unit)
£4.17(exc. VAT)
£4.17/unit
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