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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

50991 Products showing for Capacitors

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In Stock
KYOCERA AVX 2.2 μF Electrolytic Tantalum Capacitor 16V dc, Through Hole, Tap Series
  • RS Stock No. 134-9803
  • Mfr. Part No. TAP225K016SCS
Subtotal (1 bag of 25 units)
£4.875(exc. VAT)
£0.195/unit
In Stock
Panasonic 2000 μF Capacitor 35V dc, Radial, Through Hole - EEUTP1V202 Radial Lead
  • RS Stock No. 732-8327
  • Mfr. Part No. EEUTP1V202
Subtotal (1 unit)
£3.83(exc. VAT)
£3.83/unit
In Stock
Ducati Energia 4.16.17 Film Capacitor, ±5 %, 10 μF 450V ac, Plug-in
  • RS Stock No. 135-3587
  • Mfr. Part No. 4.16.17.13.06
Subtotal (1 unit)
£8.20(exc. VAT)
£8.20/unit
In Stock
TDK B32652 Film Capacitor 150 nF 630V ac 630 V dc, Through Hole 2
  • RS Stock No. 194-3654
  • Mfr. Part No. B32652A6154J000
Subtotal (1 pack of 20 units)
£8.24(exc. VAT)
£0.412/unit
In Stock
KEMET 80 μF Capacitor 260V ac, Snap-in
  • RS Stock No. 151-1565
  • Mfr. Part No. 080MS26AAMK1STD
Subtotal (1 unit)
£9.71(exc. VAT)
£9.71/unit
In Stock
Panasonic 3900 μF Capacitor 35V dc, Through Hole - EEUFC1V392 Radial Lead
  • RS Stock No. 571-420
  • Mfr. Part No. EEUFC1V392
Subtotal (1 pack of 5 units)
£15.10(exc. VAT)
£3.02/unit
In Stock
CHEMI-CON 470 μF Capacitor 200V dc, Snap-in - EKMQ201VSN471MP30S
  • RS Stock No. 841-4873
  • Mfr. Part No. EKMQ201VSN471MP30S
Subtotal (1 unit)
£3.41(exc. VAT)
£3.41/unit
In Stock
KYOCERA AVX 47 μF Electrolytic Tantalum Capacitor 20V dc, Surface, TPS Series
  • RS Stock No. 135-9947
  • Mfr. Part No. TPSD476K020R0100
Subtotal (1 bag of 5 units)
£3.14(exc. VAT)
£0.628/unit
Last RS stock
Genteq GEM III 97F9000 Film Capacitor, 6 %, 60 μF 440V ac
  • RS Stock No. 908-4470
  • Mfr. Part No. 97F9043
Subtotal (1 unit)
£41.01(exc. VAT)
£41.01/unit
In Stock
Ducati Energia 4.16.15 Film Capacitor, ±5 %, 2 μF 500V ac, Stud Mount
  • RS Stock No. 388-7664
  • Mfr. Part No. 4.16.15.01.14
Subtotal (1 unit)
£12.74(exc. VAT)
£12.74/unit
In Stock
KEMET R75 Film Capacitor, ±5 %, 470 nF 400 V dc 220V ac, Through Hole
  • RS Stock No. 875-2077
  • Mfr. Part No. R75MI34704030J
Subtotal (1 pack of 10 units)
£5.84(exc. VAT)
£0.584/unit
In Stock
CHEMI-CON 2.2 mF Through Hole Polymer Capacitor, 16V
  • RS Stock No. 251-4825
  • Mfr. Part No. APSG160ELL222MJ20S
Subtotal (1 pack of 10 units)
£11.31(exc. VAT)
£1.131/unit
In Stock
TDK B3293 Film Capacitor 330 nF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 874-1443
  • Mfr. Part No. B32933A3334K000
Subtotal (1 pack of 5 units)
£5.25(exc. VAT)
£1.05/unit
In Stock
KEMET 220 nF Multilayer Ceramic Capacitor, 6.3V dc, ±10 %, Surface
  • RS Stock No. 801-5114
  • Mfr. Part No. C0402C224K9PACTU
Subtotal (1 pack of 25 units)
£0.325(exc. VAT)
£0.013/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 60 μF 500V ac, Plug-in
  • RS Stock No. 135-3581
  • Mfr. Part No. 4.16.10.61.14
Subtotal (1 unit)
£24.46(exc. VAT)
£24.46/unit
In Stock
Ducati Energia 4.16.15 Film Capacitor, ±5 %, 1 μF 500V ac, Stud Mount
  • RS Stock No. 388-7658
  • Mfr. Part No. 4.16.15.69.14
Subtotal (1 unit)
£11.47(exc. VAT)
£11.47/unit
In Stock
Vishay Single Layer Ceramic Capacitor 940 pF 30kV dc ±20 % N4700 Dielectric, 715C, Screw 85 °C Max Op. Temp.
  • RS Stock No. 210-1580
  • Mfr. Part No. 715C30KTT94
Subtotal (1 unit)
£57.23(exc. VAT)
£57.23/unit
In Stock
TDK 2200 μF Capacitor 80V dc, Snap-in
  • RS Stock No. 771-4737
  • Mfr. Part No. B41252A0228M060
Subtotal (1 pack of 2 units)
£6.98(exc. VAT)
£3.49/unit
In Stock
Ducati Energia 4.16.17 Film Capacitor, ±5 %, 5 μF 450V ac, Plug-in
  • RS Stock No. 135-3585
  • Mfr. Part No. 4.16.17.08.06
Subtotal (1 unit)
£6.61(exc. VAT)
£6.61/unit
In Stock
KEMET 150 μF Capacitor 550V dc, Snap-in
  • RS Stock No. 874-1572
  • Mfr. Part No. ALC10A151CD550
Subtotal (1 unit)
£8.74(exc. VAT)
£8.74/unit
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