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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

50714 Products showing for Capacitors

1 of 999+
Last RS stock
KEMET C87 Film Capacitor P2, ±5 %, 3.5 μF 450V ac, Stud Mount
  • RS Stock No. 911-9396
  • Mfr. Part No. C878BF34350SA4J
Subtotal (1 unit)
£4.12(exc. VAT)
£4.12/unit
In Stock
Panasonic 4.7 μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFC1H4R7 Radial Lead
  • RS Stock No. 571-808
  • Mfr. Part No. EEUFC1H4R7
Subtotal (1 pack of 5 units)
£1.42(exc. VAT)
£0.284/unit
In Stock
KEMET 125 μF Capacitor 220V ac, Snap-in
  • RS Stock No. 151-1554
  • Mfr. Part No. 125MS22ACMA1STD
Subtotal (1 unit)
£8.82(exc. VAT)
£8.82/unit
In Stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFM1E101 Radial Lead
  • RS Stock No. 526-1430
  • Mfr. Part No. EEUFM1E101
Subtotal (1 pack of 5 units)
£0.74(exc. VAT)
£0.148/unit
In Stock
Wurth Elektronik 1 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 257-1106
  • Mfr. Part No. 885012206126
Subtotal (1 tape of 10 units)
£3.11(exc. VAT)
£0.311/unit
In Stock
Vishay 180 μF Capacitor 500V dc, Snap-in
  • RS Stock No. 206-8759
  • Mfr. Part No. MAL219359181E3
Subtotal (1 unit)
£9.21(exc. VAT)
£9.21/unit
In Stock
KEMET 150 μF Capacitor 220V ac, Snap-in
  • RS Stock No. 151-1548
  • Mfr. Part No. 150MS22ACMA1STD
Subtotal (1 unit)
£17.89(exc. VAT)
£17.89/unit
In Stock
KEMET 4700 μF Capacitor 63V dc, Screw - ALS30A472DA063
  • RS Stock No. 381-9087
  • Mfr. Part No. ALS30A472DA063
Subtotal (1 unit)
£10.16(exc. VAT)
£10.16/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
TDK 12000 μF Capacitor 63V dc, Snap-in
  • RS Stock No. 171-3251
  • Mfr. Part No. B41231A8129M060
Subtotal (1 unit)
£7.46(exc. VAT)
£7.46/unit
In Stock
Murata 33 pF Multilayer Ceramic Capacitor, 50V dc, 5 %, Surface
  • RS Stock No. 247-7802
  • Mfr. Part No. GCM1555C1H330JA16D
Subtotal (1 tape of 100 units)
£1.10(exc. VAT)
£0.011/unit
In Stock
Panasonic 1 μF Capacitor 250V dc, Radial, Through Hole - ECA2EHG010 Radial Lead
  • RS Stock No. 365-4622
  • Mfr. Part No. ECA2EHG010
Subtotal (1 pack of 5 units)
£1.46(exc. VAT)
£0.292/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 40 μF 500V ac, Stud Mount
  • RS Stock No. 388-7793
  • Mfr. Part No. 4.16.10.29.14
Subtotal (1 unit)
£24.89(exc. VAT)
£24.89/unit
In Stock
Panasonic 330 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 240-3825
  • Mfr. Part No. EEUEB1H331
Subtotal (1 pack of 5 units)
£3.90(exc. VAT)
£0.78/unit
Last RS stock
Vishay 680 μF Capacitor 25V dc, Axial, Through Hole - MAL202116681E3 Solder
  • RS Stock No. 108-4936
  • Mfr. Part No. MAL202116681E3
Subtotal (1 pack of 5 units)
£16.15(exc. VAT)
£3.23/unit
In Stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEAFC1E100 Radial Lead
  • RS Stock No. 449-1006
  • Mfr. Part No. EEAFC1E100
Subtotal (1 pack of 5 units)
£1.39(exc. VAT)
£0.278/unit
In Stock
Nichicon 22 μF Capacitor 100V dc, Through Hole Radial Lead
  • RS Stock No. 715-3025
  • Mfr. Part No. UPW2A220MPD
Subtotal (1 pack of 10 units)
£1.26(exc. VAT)
£0.126/unit
In Stock
RS PRO MRP440 Film Capacitor, ±10 %, 6 μF 440V ac, Screw
  • RS Stock No. 196-4781
Subtotal (1 unit)
£11.11(exc. VAT)
£11.11/unit
In Stock
Panasonic 100 μF Capacitor 63V dc, Radial Radial Lead
  • RS Stock No. 756-8326P
  • Mfr. Part No. EEUFR1J101
Subtotal 10 units (supplied in a bag)
£6.50(exc. VAT)
£0.65/unit
In Stock
Murata 10 μF Multilayer Ceramic Capacitor, 100V dc, 10 %, Surface
  • RS Stock No. 260-8835P
  • Mfr. Part No. GRM32EC72A106KE05K
Subtotal 5 units (supplied on a continuous strip)
£4.34(exc. VAT)
£0.868/unit
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