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

50309 Products showing for Capacitors

1 of 999+
In Stock
KEMET C27 Film Capacitor, ±5 %, 35 F 470V ac, Chassis Mount
  • RS Stock No. 377-9147
  • Mfr. Part No. C274ACF5350WA0J
Subtotal (1 unit)
£15.62(exc. VAT)
£15.62/unit
In Stock
KEMET C27 Film Capacitor, ±5 %, 25 μF 470V ac, Chassis Mount
  • RS Stock No. 377-8958
  • Mfr. Part No. C274AC35250SA0J
Subtotal (1 unit)
£10.45(exc. VAT)
£10.45/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 18 μF 450V ac, Stud Mount
  • RS Stock No. 388-8011
  • Mfr. Part No. 4.16.10.24.64
Subtotal (1 unit)
£11.86(exc. VAT)
£11.86/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 5 μF 450V ac, Stud Mount
  • RS Stock No. 388-7951
  • Mfr. Part No. 4.16.10.08.64
Subtotal (1 unit)
£5.72(exc. VAT)
£5.72/unit
In Stock
KEMET C27 Film Capacitor, ±5 %, 40 μF 470V ac, Chassis Mount
  • RS Stock No. 377-9153
  • Mfr. Part No. C274ACF5400WA0J
Subtotal (1 unit)
£15.87(exc. VAT)
£15.87/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 15 μF 500V ac, Stud Mount
  • RS Stock No. 388-7737
  • Mfr. Part No. 4.16.10.22.14
Subtotal (1 unit)
£16.63(exc. VAT)
£16.63/unit
In Stock
TDK B32332 Film Capacitor 60 μF 450V ac 450 V dc, Stud Mount 2
  • RS Stock No. 769-4309
  • Mfr. Part No. B32332I6606J082
Subtotal (1 unit)
£19.30(exc. VAT)
£19.30/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
Vishay Single Layer Ceramic Capacitor 1 nF 15kV dc -20 to 80 % Y5U Dielectric, 615R, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 131-1214
  • Mfr. Part No. 615R150GAD10
Subtotal (1 unit)
£10.24(exc. VAT)
£10.24/unit
In Stock
KEMET 0.47 F Capacitor 25V dc, Screw
  • RS Stock No. 144-3401
  • Mfr. Part No. ALS70A474NF025
Subtotal (1 unit)
£41.70(exc. VAT)
£41.70/unit
In Stock
TDK 15000 μF Capacitor 50V dc, Snap-in
  • RS Stock No. 771-4719
  • Mfr. Part No. B41252A6159M060
Subtotal (1 unit)
£7.23(exc. VAT)
£7.23/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 4 μF 500V ac, Stud Mount
  • RS Stock No. 388-7686
  • Mfr. Part No. 4.16.10.06.14
Subtotal (1 unit)
£7.78(exc. VAT)
£7.78/unit
Temporarily out of stock
Genteq GEM III 27L Film Capacitor, ±6 %, 45 μF 500V ac, Screw
  • RS Stock No. 909-0721
  • Mfr. Part No. 27L945
Subtotal (1 unit)
£28.56(exc. VAT)
£28.56/unit
In Stock
KEMET 80 μF Capacitor 260V ac, Snap-in
  • RS Stock No. 151-1565
  • Mfr. Part No. 080MS26AAMK1STD
Subtotal (1 unit)
£9.76(exc. VAT)
£9.76/unit
Limited stock
KEMET 200 μF Capacitor 220V ac, Snap-in
  • RS Stock No. 151-1546
  • Mfr. Part No. 200MS22ACMA1STD
Subtotal (1 unit)
£14.38(exc. VAT)
£14.38/unit
In Stock
Vishay 1000 μF Capacitor 40V dc, Through Hole - MAL202127102E3 Axial
  • RS Stock No. 280-3283
  • Mfr. Part No. MAL202127102E3
Subtotal (1 unit)
£3.49(exc. VAT)
£3.49/unit
In Stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFM1H101 Radial Lead
  • RS Stock No. 526-1597
  • Mfr. Part No. EEUFM1H101
Subtotal (1 pack of 5 units)
£2.18(exc. VAT)
£0.436/unit
In Stock
KEMET 10000 μF Capacitor 40V dc, Solder Lug
  • RS Stock No. 339-7903
  • Mfr. Part No. ALT22A103CB040
Subtotal (1 unit)
£8.50(exc. VAT)
£8.50/unit
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 18 μF 500V ac, Stud Mount
  • RS Stock No. 388-7743
  • Mfr. Part No. 4.16.10.24.14
Subtotal (1 unit)
£18.33(exc. VAT)
£18.33/unit
In Stock
KEMET C27 Film Capacitor P0, ±5 %, 1.5 μF 470V ac, Chassis Mount
  • RS Stock No. 377-9002
  • Mfr. Part No. C274ACF4150WA0J
Subtotal (1 unit)
£5.76(exc. VAT)
£5.76/unit
1
2
3
2516
Results per page

Guides & Articles

Variable Resistors Guide
From types to applications, discover all you need to know about variable resistors in our handy guide.
Read More
Capacitors Guide
In our comprehensive capacitors guide, we look at MLCCs and the alternatives available.
Read more

Related links

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy