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.

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).

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

48432 Products showing for Capacitors

1 of 999+
In Stock
KEMET 10000 μF Capacitor 200 V dc, Screw
  • RS stock no. 381-9706
  • Mfr. Part No. ALS31A103NF200
Subtotal (1 unit)
R 1 264,62(exc. VAT)
In Stock
Visaton 33 μF Aluminium Electrolytic Capacitor - 5380
  • RS stock no. 527-020
  • Mfr. Part No. 5380
Subtotal (1 unit)
R 40,26(exc. VAT)
In Stock
Visaton 22 μF Aluminium Electrolytic Capacitor - 5381
  • RS stock no. 527-021
  • Mfr. Part No. 5381
Subtotal (1 unit)
R 36,47(exc. VAT)
In Stock
KEMET 4700 μF Capacitor 450 V dc, Screw
  • RS stock no. 869-6292
  • Mfr. Part No. ALS30A472NJ450
Subtotal (1 unit)
R 1 669,29(exc. VAT)
In Stock
KEMET 4700 μF Capacitor 100 V dc, Screw - ALS30A472DE100
  • RS stock no. 381-9166
  • Mfr. Part No. ALS30A472DE100
Subtotal (1 unit)
R 342,74(exc. VAT)
In Stock
Panasonic 47 μF Aluminium Electrolytic Capacitor 50 V dc, Radial, Through Hole - EEUFC1H470 Radial Lead
  • RS stock no. 572-198
  • Mfr. Part No. EEUFC1H470
Subtotal (1 pack of 5 units)
R 37,58(exc. VAT)
In Stock
KEMET 22000 μF Capacitor 63 V dc, Screw - ALS30A223KE063
  • RS stock no. 381-8595
  • Mfr. Part No. ALS30A223KE063
Subtotal (1 unit)
R 525,15(exc. VAT)
In Stock
CHEMI-CON 1500 μF Capacitor 200 V dc, Snap-in
  • RS stock no. 841-4851
  • Mfr. Part No. EKMQ201VSN152MR40S
Subtotal (1 unit)
R 126,93(exc. VAT)
In Stock
Eaton 400 F Supercapacitor -5 to +10 % Tolerance, Supercap XV 2.7 V, Through Hole
  • RS stock no. 763-7858
  • Mfr. Part No. XV3560-2R7407-R
Subtotal (1 unit)
R 381,78(exc. VAT)
In Stock
KEMET 4700 μF Capacitor 385 V dc, Screw - PEH200XV4470MB2
  • RS stock no. 173-5184
  • Mfr. Part No. PEH200XV4470MB2
Subtotal (1 bag of 12 units)
R 22 820,532(exc. VAT)
In Stock
KEMET 470 μF Capacitor 500 V dc, Screw
  • RS stock no. 144-3397
  • Mfr. Part No. ALS70A471DB500
Subtotal (1 unit)
R 297,87(exc. VAT)
In Stock
KEMET 4700 μF Capacitor 385 V dc, Screw
  • RS stock no. 183-5352
  • Mfr. Part No. PEH200XV4470MB2
Subtotal (1 unit)
R 2 200,68(exc. VAT)
In Stock
KEMET 470 μF Capacitor 400 V dc, Screw - ALS30A471DE400
  • RS stock no. 381-8618P
  • Mfr. Part No. ALS30A471DE400
Subtotal 1 unit (supplied in a box)
R 316,74(exc. VAT)
In Stock
KEMET R46 Film Capacitor X2, ±20 %, 220 nF 275 V dc 275 V ac, Through Hole
  • RS stock no. 165-0355
  • Mfr. Part No. R46KN322040H1M
Subtotal (1 pack of 10 units)
R 96,82(exc. VAT)
In Stock
KEMET 200 μF Capacitor 220 V ac, Snap-in
  • RS stock no. 151-1546
  • Mfr. Part No. 200MS22ACMA1STD
Subtotal (1 unit)
R 352,17(exc. VAT)
In Stock
KEMET 100 μF Capacitor 220 V ac, Snap-in
  • RS stock no. 151-1557
  • Mfr. Part No. 100MS22ACMA1STD
Subtotal (1 unit)
R 249,92(exc. VAT)
In Stock
KEMET 10000 μF Capacitor 50 V dc, Screw - ALS36H103D3C050
  • RS stock no. 869-6325
  • Mfr. Part No. ALS36H103D3C050
Subtotal (1 unit)
R 325,06(exc. VAT)
In Stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 35 V dc, Surface Mount Solder - EEEFK1V221P 500
  • RS stock no. 537-0641
  • Mfr. Part No. EEEFK1V221P
Subtotal (1 pack of 5 units)
R 70,27(exc. VAT)
In Stock
TDK Single Layer Ceramic Capacitor 4700 pF 3 kV, CK45, Through Hole 105 °C Max Op. Temp.
  • RS stock no. 253-2859
  • Mfr. Part No. CK45-E3FD472ZYNNA
Subtotal (1 tape of 20 units)
R 131,56(exc. VAT)
In Stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 20 μF 450 V ac, Plug-in
  • RS stock no. 135-3590
  • Mfr. Part No. 4.16.10.25.06
Subtotal (1 unit)
R 243,80(exc. VAT)
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