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.

48954 Products showing for Capacitors

2 of 999+
In Stock
  • RS stock no. 365-4240
  • Mfr. Part No. ECA1HHG100
Subtotal (1 pack of 5 units)
R 28,35(exc. VAT)
In Stock
  • RS stock no. 276-6123
Subtotal (1 pack of 5 units)
R 66,02(exc. VAT)
In Stock
  • RS stock no. 315-0704
  • Mfr. Part No. EEUFC1V151
Subtotal (1 pack of 5 units)
R 47,15(exc. VAT)
In Stock
  • RS stock no. 749-2330
  • Mfr. Part No. MAL215942102E3
Subtotal (1 unit)
R 311,46(exc. VAT)
In Stock
  • RS stock no. 538-1219
  • Mfr. Part No. C315C220J2G5TA
Subtotal (1 pack of 5 units)
R 31,73(exc. VAT)
In Stock
  • RS stock no. 108-2722
  • Mfr. Part No. MKS2D032201C00KSSD
Subtotal (1 pack of 5 units)
R 64,67(exc. VAT)
In Stock
  • RS stock no. 240-3880
  • Mfr. Part No. EEUFR1E101B
Subtotal (1 pack of 10 units)
R 49,33(exc. VAT)
In Stock
  • RS stock no. 495-644
Subtotal (1 pack of 5 units)
R 381,11(exc. VAT)
In Stock
  • RS stock no. 241-6557
  • Mfr. Part No. B32529C0472K000
Subtotal (1 bag of 5 units)
R 13,38(exc. VAT)
In Stock
  • RS stock no. 711-1637
Subtotal (1 pack of 5 units)
R 134,14(exc. VAT)
In Stock
  • RS stock no. 538-1427
  • Mfr. Part No. C322C104K1R5TA
Subtotal (1 pack of 5 units)
R 27,15(exc. VAT)
In Stock
  • RS stock no. 365-4329
  • Mfr. Part No. ECA1HHG102
Subtotal (1 pack of 5 units)
R 139,03(exc. VAT)
In Stock
  • RS stock no. 841-4753
  • Mfr. Part No. EKMQ451VSN471MA45S
Subtotal (1 unit)
R 108,19(exc. VAT)
In Stock
  • RS stock no. 360-061
Subtotal (1 unit)
R 26,56(exc. VAT)
In Stock
  • RS stock no. 495-868
Subtotal (1 pack of 5 units)
R 788,50(exc. VAT)
In Stock
  • RS stock no. 224-4094
  • Mfr. Part No. 6.3YXF470M8X11.5
Subtotal (1 pack of 5 units)
R 25,87(exc. VAT)
In Stock
  • RS stock no. 711-1283
Subtotal (1 pack of 25 units)
R 69,175(exc. VAT)
In Stock
  • RS stock no. 241-6540
  • Mfr. Part No. B32529C0223J289
Subtotal (1 bag of 5 units)
R 26,24(exc. VAT)
In Stock
  • RS stock no. 739-6822
  • Mfr. Part No. EEUFR1V471L
Subtotal (1 pack of 10 units)
R 105,42(exc. VAT)
In Stock
  • RS stock no. 209-8690
  • Mfr. Part No. B43630A9128M060
Subtotal (1 unit)
R 282,60(exc. VAT)
Results per page