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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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Limited stock
Wurth Elektronik 2.2 pF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 263-3982P
  • Mfr. Part No. 885012006089
Subtotal (100 units, supplied on a continuous strip)
£2.60(exc. VAT)
£0.026/unit
Stocked by manufacturer
Schneider Electric Power Factor Correction Capacitor 12.5 kvar
  • RS Stock No. 357-349
  • Mfr. Part No. LVR07125B40T
Subtotal (1 unit)
£556.94(exc. VAT)
£556.94/unit
In Stock
TDK B32922C Film Capacitor 150 nF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 334-855
  • Mfr. Part No. B32922C3154K000
Subtotal (10 units, in packs of 10)
£1.90(exc. VAT)
£0.19/unit
Last RS stock
TDK B32656S Film Capacitor 470 nF 500V ac 1.25 kV dc, Tab 2
  • RS Stock No. 334-647
  • Mfr. Part No. B32656S7474J564
Subtotal (1 unit)
£5.77(exc. VAT)
£5.77/unit
Stocked by manufacturer
Schneider Electric Power Factor Correction Capacitor 25 kvar 30 kvar
  • RS Stock No. 346-827
  • Mfr. Part No. BLRCS250A300B40
Subtotal (1 unit)
£585.46(exc. VAT)
£585.46/unit
In Stock
KEMET R58 Film Capacitor, 10 %, 270 nF 600 V dc 600V ac, PCB
  • RS Stock No. 262-2138
  • Mfr. Part No. R586R327050T0K
Subtotal (336 units, in trays of 336)
£389.76(exc. VAT)
£1.16/unit
Last RS stock
TDK 680 μF Capacitor 100V dc, Radial, Through Hole - B41858C9687M000 Radial Lead
  • RS Stock No. 261-0669
  • Mfr. Part No. B41858C9687M000
Subtotal (125 units, in boxes of 125)
£121.25(exc. VAT)
£0.97/unit
In Stock
TDK Single Layer Ceramic Capacitor 10 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1843
  • Mfr. Part No. CC45SL3AD100JYNNA
Subtotal (10 units, in bags of 10)
£1.84(exc. VAT)
£0.184/unit
Currently unavailable
Wurth Elektronik WCAP-FTXX Film Capacitor, ±10 %, 330 nF 310 V dc 310V ac, Through Hole
  • RS Stock No. 262-0906
  • Mfr. Part No. 890334026007
Subtotal (200 units, in boxes of 200)
£71.80(exc. VAT)
£0.359/unit
In Stock
TDK B32656S Film Capacitor 1.5 μF 850V ac 850 V dc, Tab 2
  • RS Stock No. 334-619
  • Mfr. Part No. B32656S8155J561
Subtotal (1 unit)
£8.98(exc. VAT)
£8.98/unit
In Stock
Vishay F339X2 Film Capacitor, ±20 %, 1 μF 305 V dc 305V ac, Through Hole
  • RS Stock No. 261-9801
  • Mfr. Part No. F339X251030MIM2T0
Subtotal (1 unit)
£1.02(exc. VAT)
£1.02/unit
In Stock
Wurth Elektronik 470 pF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 263-3923
  • Mfr. Part No. 885012006027
Subtotal (100 units, on tapes of 100)
£3.90(exc. VAT)
£0.039/unit
Temporarily out of stock
Panasonic 82 μF Capacitor 35V dc, Surface
  • RS Stock No. 262-4980
  • Mfr. Part No. EEEFN1V820UL
Subtotal (1000 units, on reels of 1000)
£133.00(exc. VAT)
£0.133/unit
Currently unavailable
CHEMI-CON 1000 μF Capacitor 25V dc, Through Hole - EKY-250ELL102MJ30S Radial Lead
  • RS Stock No. 374-887
  • Mfr. Part No. EKY-250ELL102MJ30S
Subtotal (5 units, in packs of 5)
£3.30(exc. VAT)
£0.66/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 50V dc, 10 %, Surface
  • RS Stock No. 260-8831P
  • Mfr. Part No. GRM31CR71H475KA12K
Subtotal (20 units, supplied on a continuous strip)
£3.46(exc. VAT)
£0.173/unit
In Stock
KYOCERA AVX 150 pF Multilayer Ceramic Capacitor, 500V dc, ±10 %, Surface
  • RS Stock No. 391-268
  • Mfr. Part No. 12067A151KAT2A
Subtotal (50 units, in packs of 50)
£20.15(exc. VAT)
£0.403/unit
In Stock
TDK B32521 Film Capacitor 220 nF 160V ac 250 V dc, Through Hole 2
  • RS Stock No. 334-782P
  • Mfr. Part No. B32521C3224J000
Subtotal (10 units, supplied in a bag)
£2.53(exc. VAT)
£0.253/unit
Temporarily out of stock
Panasonic 100 μF Capacitor 6.3V dc, Surface
  • RS Stock No. 262-4900P
  • Mfr. Part No. EEEFN1E101UL
Subtotal (10 units, supplied on a continuous strip)
£2.06(exc. VAT)
£0.206/unit
In Stock
Panasonic 150 μF Capacitor 16V dc, Surface - EEEFK1C151XP
  • RS Stock No. 262-1423
  • Mfr. Part No. EEEFK1C151XP
Subtotal (10 units, on tapes of 10)
£3.41(exc. VAT)
£0.341/unit
In Stock
KEMET 100 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 264-4056P
  • Mfr. Part No. C1206C101J5GACTU
Subtotal (25 units, supplied on a continuous strip)
£1.675(exc. VAT)
£0.067/unit
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