Over 800,000 products available

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

48899 Products showing for Capacitors

9 of 999+
In Stock
Yageo 2.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface Mount
  • RS Stock No. 242-3899
  • Mfr. Part No. CC0603CRNPO9BN2R2
Subtotal (1 tape of 100 units)
£1.60(exc. VAT)
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 276-3715
  • Mfr. Part No. GRJ31CZ72A475KE01L
Subtotal (1 tape of 10 units)
£3.62(exc. VAT)
Being discontinued
KEMET C87 Film Capacitor P2, ±5 %, 3 μF 450V ac, Stud Mount
  • RS Stock No. 911-9392
  • Mfr. Part No. C878BF34300SA4J
Subtotal (1 unit)
£3.74(exc. VAT)
Temporarily out of stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 25 μF 450V ac, Stud Mount
  • RS Stock No. 388-8033
  • Mfr. Part No. 4.16.10.26.64
Subtotal (1 unit)
£15.08(exc. VAT)
In Stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 766-0078P
  • Mfr. Part No. EEUFR1V221
Subtotal 10 units (supplied in a bag)
£2.58(exc. VAT)
In Stock
KEMET R82 Film Capacitor, ±5 %, 22 nF 100 V dc 160V ac, Through Hole
  • RS Stock No. 312-1447
  • Mfr. Part No. R82EC2220DQ50J
Subtotal (1 pack of 10 units)
£1.33(exc. VAT)
In Stock
Vishay 15 μF Capacitor 63V dc, Through Hole - MAL202128159E3 Axial
  • RS Stock No. 280-3301
  • Mfr. Part No. MAL202128159E3
Subtotal (1 tape of 10 units)
£10.90(exc. VAT)
In Stock
RS PRO Single Layer Ceramic Capacitor 1 μF 50V dc ±10 % X7R Dielectric, RD21B10, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 180-5107
Subtotal (1 pack of 50 units)
£7.10(exc. VAT)
In Stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 50V dc, Through Hole - EEUFC1H101 Radial Lead
  • RS Stock No. 449-1084
  • Mfr. Part No. EEUFC1H101
Subtotal (1 pack of 5 units)
£2.89(exc. VAT)
In Stock
Panasonic 33 μF Through Hole Polymer Capacitor, 20V dc
  • RS Stock No. 795-5534
  • Mfr. Part No. 20SEP33M
Subtotal (1 pack of 5 units)
£5.75(exc. VAT)
In Stock
Panasonic 820 μF Capacitor 63V dc, Radial, Through Hole - EEUFR1J821 Radial Lead
  • RS Stock No. 756-8370
  • Mfr. Part No. EEUFR1J821
Subtotal (1 pack of 2 units)
£3.92(exc. VAT)
In Stock
Eaton 0.47 F Supercapacitor -10 to 30 % Tolerance, Supercap PHV 5.4V dc, Through Hole
  • RS Stock No. 763-7839P
  • Mfr. Part No. PHV-5R4V474-R
Subtotal 1 unit (supplied in a bag)
£5.41(exc. VAT)
In Stock
EPCOS B32653 Film Capacitor 220 nF 630V ac 630 V dc, Through Hole 2
  • RS Stock No. 194-3666
  • Mfr. Part No. B32653A6224K000
Subtotal (1 pack of 10 units)
£7.39(exc. VAT)
In Stock
Vishay MKT 1813 Film Capacitor 2.2 μF 160V ac 250 V dc, Through Hole
  • RS Stock No. 185-4224
  • Mfr. Part No. MKT1813522255
Subtotal (1 pack of 5 units)
£10.52(exc. VAT)
In Stock
Rubycon 220 μF Capacitor 35V dc, Through Hole PC Pin
  • RS Stock No. 725-9010P
  • Mfr. Part No. 35ZLG220MEFC10X12.5
Subtotal 5 units (supplied in a bag)
£2.51(exc. VAT)
In Stock
Panasonic 4.7 μF Electrolytic Capacitor 63V, Radial - EEUEB1J4R7SH Radial
  • RS Stock No. 759-095P
  • Mfr. Part No. EEUEB1J4R7SH
Subtotal 5 units (supplied as a tape)
£1.07(exc. VAT)
In Stock
RS PRO 1000 μF Capacitor 25V dc, Axial, Through Hole Axial
  • RS Stock No. 707-6650
Subtotal (1 pack of 5 units)
£4.86(exc. VAT)
In Stock
Panasonic 2.2 μF Capacitor 100V dc, Radial, Through Hole - ECA2AM2R2 Radial Lead
  • RS Stock No. 228-7057
  • Mfr. Part No. ECA2AM2R2
Subtotal (1 pack of 5 units)
£0.98(exc. VAT)
In Stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFM1E221 Radial Lead
  • RS Stock No. 526-1480
  • Mfr. Part No. EEUFM1E221
Subtotal (1 pack of 5 units)
£2.18(exc. VAT)
In Stock
Nichicon 3300 μF Capacitor 63V dc, Snap-in - LGU1J332MELA
  • RS Stock No. 846-6969
  • Mfr. Part No. LGU1J332MELA
Subtotal (1 unit)
£3.70(exc. VAT)
1
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