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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
Nichicon 180 μF Capacitor 450V dc, Snap-in - LGX2W181MELA35
  • RS Stock No. 270-745
  • Mfr. Part No. LGX2W181MELA35
Subtotal (1 pack of 2 units)
£9.60(exc. VAT)
£4.80/unit
In Stock
Wurth Elektronik 470 μF Through Hole Aluminium Polymer Capacitor, 16V dc
  • RS Stock No. 275-9375P
  • Mfr. Part No. 870585375004
Subtotal 1 unit (supplied on a continuous strip)
£2.12(exc. VAT)
£2.12/unit
In Stock
Panasonic 1500 μF Solid Capacitor 2.5V dc, Surface - 2R5SVPT1500M
  • RS Stock No. 211-1975
  • Mfr. Part No. 2R5SVPT1500M
Subtotal (1 unit)
£2.24(exc. VAT)
£2.24/unit
Last RS stock
Panasonic ECQUB Polypropylene Capacitor, ±10 %, 3.9 nF 300V ac, Through Hole
  • RS Stock No. 211-0318
  • Mfr. Part No. ECQUBAF392K
Subtotal (1 pack of 10 units)
£1.45(exc. VAT)
£0.145/unit
Currently unavailable
KEMET R75 Polypropylene Capacitor, 5 %, 820 nF 1.6 kV dc 650V ac, Through Hole
  • RS Stock No. 212-6807P
  • Mfr. Part No. R75TW382050H3J
Subtotal 1 unit (supplied in a tray)
£5.78(exc. VAT)
£5.78/unit
In Stock
RS PRO 1000 μF Capacitor 50 V, 40V dc, Axial, Through Hole
  • RS Stock No. 276-6070
Subtotal (1 unit)
£3.21(exc. VAT)
£3.21/unit
In Stock
Wurth Elektronik 680 nF Surface Mount Ceramic Capacitor, 50V
  • RS Stock No. 484-381P
  • Mfr. Part No. 885012209046
Subtotal 1 unit (supplied on a continuous strip)
£0.48(exc. VAT)
£0.48/unit
Last RS stock
KEMET R75 Polypropylene Capacitor, 5 %, 180 nF 630 V dc 250V ac, Through Hole
  • RS Stock No. 212-6667
  • Mfr. Part No. R75PI318050H3J
Subtotal (1 pack of 10 units)
£4.23(exc. VAT)
£0.423/unit
Currently unavailable
Vishay 100 nF Multilayer Ceramic Capacitor, 100V dc, 10 %, Through Hole Radial
  • RS Stock No. 210-7799
  • Mfr. Part No. K104K15X7RH53H5G
Subtotal (1 pack of 10 units)
£3.31(exc. VAT)
£0.331/unit
In Stock
Panasonic 390 μF Solid Capacitor 20V dc, Surface - 20SVPT390M
  • RS Stock No. 211-1961
  • Mfr. Part No. 20SVPT390M
Subtotal (1 tape of 2 units)
£3.92(exc. VAT)
£1.96/unit
Currently unavailable
Panasonic 33 μF Capacitor 25V dc, Surface Solder - EEEFP1E330AP 1000
  • RS Stock No. 568-503
  • Mfr. Part No. EEEFP1E330AP
Subtotal (1 pack of 5 units)
£1.90(exc. VAT)
£0.38/unit
Temporarily out of stock
Wurth Elektronik 10 μF Capacitor 160V dc, Through Hole
  • RS Stock No. 275-9111
  • Mfr. Part No. 860240975001
Subtotal (1 bag of 10 units)
£5.61(exc. VAT)
£0.561/unit
Temporarily out of stock
Vishay 10 μF Tantalum Tantalum Capacitor 20V dc, Surface, 293D Series
  • RS Stock No. 252-5172
  • Mfr. Part No. 293D106X9020C2TE3
Subtotal (1 tape of 10 units)
£2.84(exc. VAT)
£0.284/unit
In Stock
Wurth Elektronik 150 pF Surface Mount Ceramic Capacitor, 10V
  • RS Stock No. 485-991P
  • Mfr. Part No. 885012005014
Subtotal 50 units (supplied on a continuous strip)
£0.35(exc. VAT)
£0.007/unit
Stocked by manufacturer
RS Better World
Schneider Electric Power Factor Correction Capacitor 250 kvar 250 kvar 3
  • RS Stock No. 276-9425
  • Mfr. Part No. VLVAF3P03514AG
Subtotal (1 unit)
£11,358.22(exc. VAT)
£11,358.22/unit
Temporarily out of stock
Wurth Elektronik 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 185-5196
  • Mfr. Part No. 885382208003
Subtotal (1 reel of 3000 units)
£285.00(exc. VAT)
£0.095/unit
In Stock
Wurth Elektronik 470 μF Surface Aluminium Polymer Capacitor, 25V dc
  • RS Stock No. 275-9430P
  • Mfr. Part No. 875575561007
Subtotal 1 unit (supplied on a continuous strip)
£2.00(exc. VAT)
£2.00/unit
Temporarily out of stock
Wurth Elektronik 6.8 μF Surface Aluminium Polymer Capacitor, 450V dc
  • RS Stock No. 275-9268
  • Mfr. Part No. 865061462003
Subtotal (1 reel of 200 units)
£226.60(exc. VAT)
£1.133/unit
In Stock
Murata 3.9 pF Multilayer Ceramic Capacitor, 50V dc, 0.1 pF, Surface
  • RS Stock No. 185-1811
  • Mfr. Part No. GRM0335C1H3R9BA01D
Subtotal (1 reel of 1000 units)
£4.00(exc. VAT)
£0.004/unit
In Stock
Panasonic 560 μF Capacitor 25V dc, Surface Solder - EEEFPE561UAP 500
  • RS Stock No. 568-834
  • Mfr. Part No. EEEFPE561UAP
Subtotal (1 pack of 5 units)
£5.65(exc. VAT)
£1.13/unit
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