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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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Schneider Electric Power Factor Correction Capacitor PFC 550 kvar
  • RS Stock No. 340-942
  • Mfr. Part No. VLVAF6P03521AG
Subtotal (1 unit)
£25,624.29(exc. VAT)
£25,624.29/unit
In Stock
Vishay MKT368 Film Capacitor 220 nF 220V ac 400 V dc, Through Hole
  • RS Stock No. 115-281P
  • Mfr. Part No. BFC236855224
Subtotal (5 units, supplied in a box)
£7.40(exc. VAT)
£1.48/unit
In Stock
KEMET 120 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 147-897
  • Mfr. Part No. C0603C121J5GACTU
Subtotal (50 units, in packs of 50)
£1.30(exc. VAT)
£0.026/unit
Last RS stock
KEMET PME271 Paper Capacitor X2 250V ac, 3.3 nF, Through Hole
  • RS Stock No. 210-588
  • Mfr. Part No. PME271Y433MR30
Subtotal (5 units, in packs of 5)
£6.17(exc. VAT)
£1.234/unit
In Stock
KEMET 220 nF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 147-550P
  • Mfr. Part No. C0603C224K8RACTU
Subtotal (50 units, supplied on a continuous strip)
£1.15(exc. VAT)
£0.023/unit
Temporarily out of stock
KEMET 1 nF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 180-6237
  • Mfr. Part No. C0603C102F5GACTU
Subtotal (4000 units, on reels of 4000)
£1,012.00(exc. VAT)
£0.253/unit
Temporarily out of stock
KEMET 68 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 180-6280
  • Mfr. Part No. C0402C680G5GACTU
Subtotal (10000 units, on reels of 10000)
£1,740.00(exc. VAT)
£0.174/unit
In Stock
Vishay 2.2 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-303P
  • Mfr. Part No. VJ1210A222JBGTW1HV
Subtotal (25 units, supplied on a continuous strip)
£6.70(exc. VAT)
£0.268/unit
In Stock
KEMET 3.3 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 147-314
  • Mfr. Part No. C0603C339C5GACTU
Subtotal (50 units, in packs of 50)
£5.85(exc. VAT)
£0.117/unit
Last RS stock
Vishay 2.2 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-205
  • Mfr. Part No. VJ2225A222JBGTW1HV
Subtotal (1000 units, on reels of 1000)
£620.00(exc. VAT)
£0.62/unit
In Stock
KEMET MMK Film Capacitor, ±10 %, 1 μF 250 V dc 160V ac, Through Hole
  • RS Stock No. 192-219P
  • Mfr. Part No. MMK15105K250B06L4BULK
Subtotal (5 units, supplied in a box)
£3.76(exc. VAT)
£0.752/unit
Last RS stock
Vishay 4.7 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-356
  • Mfr. Part No. VJ1825A472JBGTW1HV
Subtotal (1000 units, on reels of 1000)
£581.00(exc. VAT)
£0.581/unit
In Stock
KEMET 10000 μF Capacitor 63V dc, Screw
  • RS Stock No. 189-787P
  • Mfr. Part No. PEH200MD5100MU2
Subtotal (1 unit, supplied in a box)
£28.02(exc. VAT)
£28.02/unit
In Stock
KEMET 20 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 180-6454
  • Mfr. Part No. C0402C200G5GACTU
Subtotal (1000 units, on reels of 1000)
£200.00(exc. VAT)
£0.20/unit
Last RS stock
Vishay 2.2 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-245
  • Mfr. Part No. VJ1210A222JXGTW1HV
Subtotal (1000 units, on reels of 1000)
£107.00(exc. VAT)
£0.107/unit
In Stock
KEMET 1 nF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 180-6496
  • Mfr. Part No. C0402C102F5GACTU
Subtotal (1000 units, on reels of 1000)
£297.00(exc. VAT)
£0.297/unit
In Stock
KEMET 33 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 147-910
  • Mfr. Part No. C0402C330J5GACTU
Subtotal (1000 units, in packs of 1000)
£8.00(exc. VAT)
£0.008/unit
In Stock
Wurth Elektronik 470 nF Multilayer Ceramic Capacitor, 6.3V dc, ±20 %, Surface
  • RS Stock No. 181-3951
  • Mfr. Part No. 885012105004
Subtotal (10000 units, on reels of 10000)
£1,360.00(exc. VAT)
£0.136/unit
In Stock
Vishay 470 pF Multilayer Ceramic Capacitor, 1kV dc, 10 %, Surface
  • RS Stock No. 298-123P
  • Mfr. Part No. VJ1210Y471KXGTW1HV
Subtotal (100 units, supplied on a continuous strip)
£11.70(exc. VAT)
£0.117/unit
In Stock
Vishay 4.7 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-274
  • Mfr. Part No. VJ1825A472JXGTW1HV
Subtotal (10 units, in bags of 10)
£10.10(exc. VAT)
£1.01/unit
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