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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

48902 Products showing for Capacitors

7 of 999+
In Stock
Nichicon 10000 μF Capacitor 63V dc, Snap-in - LLS1J103MELC
  • RS Stock No. 846-7123
  • Mfr. Part No. LLS1J103MELC
Subtotal (1 unit)
£5.01(exc. VAT)
In Stock
KEMET C27 Film Capacitor, ±5 %, 2 μF 470V ac, Chassis Mount
  • RS Stock No. 377-8891
  • Mfr. Part No. C274AC34200SA0J
Subtotal (1 unit)
£3.81(exc. VAT)
In Stock
Nichicon 150 μF Capacitor 400V dc, Snap-in - LGU2G151MELA
  • RS Stock No. 519-3703
  • Mfr. Part No. LGU2G151MELA
Subtotal (1 unit)
£3.41(exc. VAT)
In Stock
Panasonic 1000 μF Aluminium Electrolytic Capacitor 16V dc, Through Hole - EEUFM1C102 Radial Lead
  • RS Stock No. 526-1266
  • Mfr. Part No. EEUFM1C102
Subtotal (1 pack of 5 units)
£3.31(exc. VAT)
In Stock
KEMET 100 pF Multilayer Ceramic Capacitor, 200V dc, ±5 %, Through Hole Radial
  • RS Stock No. 538-1152
  • Mfr. Part No. C315C101J2G5TA
Subtotal (1 pack of 5 units)
£1.04(exc. VAT)
Limited stock
Nichicon 22000 μF Capacitor 25V dc, Snap-in PC Pin
  • RS Stock No. 846-6928
  • Mfr. Part No. LGU1E223MELC
Subtotal (1 unit)
£4.38(exc. VAT)
Last RS stock
AVX 0.47 F Supercapacitor 100/-0 % Tolerance, SCM 5V dc, Through Hole
  • RS Stock No. 250-6970
  • Mfr. Part No. SCMR14C474PRBA0
Subtotal (1 unit)
£2.78(exc. VAT)
In Stock
KEMET C87 Film Capacitor, ±5 %, 8 μF 450V ac, Chassis Mount
  • RS Stock No. 377-8762
  • Mfr. Part No. C878BF34800SA0J
Subtotal (1 unit)
£6.69(exc. VAT)
In Stock
Panasonic 47 μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - EEUFR1J470 Radial Lead
  • RS Stock No. 756-8314
  • Mfr. Part No. EEUFR1J470
Subtotal (1 pack of 25 units)
£4.025(exc. VAT)
In Stock
KEMET 330 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Through Hole Radial
  • RS Stock No. 906-0676
  • Mfr. Part No. C330C334KBR5TA
Subtotal (1 unit)
£2.51(exc. VAT)
In Stock
Panasonic 2200 μF Capacitor 16V dc, Radial, Through Hole - EEUFM1C222 Radial Lead
  • RS Stock No. 526-1301
  • Mfr. Part No. EEUFM1C222
Subtotal (1 pack of 5 units)
£6.15(exc. VAT)
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)
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
Panasonic 180 μF Capacitor 63V dc, Through Hole - EEUFR1J181 Radial Lead
  • RS Stock No. 756-8348
  • Mfr. Part No. EEUFR1J181
Subtotal (1 pack of 5 units)
£5.45(exc. VAT)
In Stock
Vishay 47 μF Capacitor 450V dc, Axial, Through Hole - MAL204317479E3 Solder
  • RS Stock No. 324-5442
  • Mfr. Part No. MAL204317479E3
Subtotal (1 pack of 5 units)
£43.30(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)
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)
Temporarily out of stock
Panasonic 100 μF Electrolytic Capacitor 100V, Radial - EEUFR2A101B Radial
  • RS Stock No. 759-036
  • Mfr. Part No. EEUFR2A101B
Subtotal (1 pack of 5 units)
£3.24(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
Panasonic 10 μF Aluminium Electrolytic Capacitor 50V dc, Through Hole Radial Lead
  • RS Stock No. 766-0084P
  • Mfr. Part No. EEUFR1H100
Subtotal 25 units (supplied in a bag)
£2.475(exc. VAT)
1
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