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.

51170 Products showing for Capacitors

Sort by
4 of 999+
Limited stock
  • RS stock no. 763-7769
  • Mfr. Part No. HV1030-2R7106-R
Subtotal (1 unit)
R 53,18(exc. VAT)
R 53,18/unit
In Stock
  • RS stock no. 147-976
  • Mfr. Part No. C0805C101J2GACTU
Subtotal (1 pack of 25 units)
R 31,45(exc. VAT)
R 1,258/unit
In Stock
  • RS stock no. 846-6906
  • Mfr. Part No. LGU1C103MELZ
Subtotal (1 pack of 2 units)
R 118,37(exc. VAT)
R 59,185/unit
In Stock
  • RS stock no. 243-7288
  • Mfr. Part No. UHE1H101MPD1TD
Subtotal (1 tape of 10 units)
R 77,69(exc. VAT)
R 7,769/unit
Last RS stock
  • RS stock no. 771-4719
  • Mfr. Part No. B41252A6159M060
Subtotal (1 unit)
R 171,55(exc. VAT)
R 171,55/unit
In Stock
  • RS stock no. 711-2015
Subtotal (1 pack of 50 units)
R 149,70(exc. VAT)
R 2,994/unit
In Stock
  • RS stock no. 841-0755P
  • Mfr. Part No. RCER71H105K2M1H03A
Subtotal 10 units (supplied as a tape)
R 61,80(exc. VAT)
R 6,18/unit
In Stock
  • RS stock no. 242-7498
  • Mfr. Part No. CGA4J2X7R1H334K125AA
Subtotal (1 pack of 50 units)
R 80,55(exc. VAT)
R 1,611/unit
In Stock
  • RS stock no. 275-9337
  • Mfr. Part No. 865230657014
Subtotal (1 tape of 10 units)
R 316,03(exc. VAT)
R 31,603/unit
In Stock
  • RS stock no. 194-3710
  • Mfr. Part No. B32642B6104J000
Subtotal (1 pack of 10 units)
R 178,83(exc. VAT)
R 17,883/unit
In Stock
  • RS stock no. 381-9920
  • Mfr. Part No. ALS40A222DB100
Subtotal (1 unit)
R 324,57(exc. VAT)
R 324,57/unit
In Stock
  • RS stock no. 210-516
  • Mfr. Part No. PME271M615KR30
Subtotal (1 pack of 5 units)
R 129,53(exc. VAT)
R 25,906/unit
In Stock
  • RS stock no. 257-5921P
  • Mfr. Part No. CL10C100JB8NNNC
Subtotal 250 units (supplied on a reel)
R 66,75(exc. VAT)
R 0,267/unit
In Stock
  • RS stock no. 135-8615
  • Mfr. Part No. 0805ZC105KAT2A
Subtotal (1 bag of 100 units)
R 94,10(exc. VAT)
R 0,941/unit
In Stock
  • RS stock no. 240-3895
  • Mfr. Part No. EEUFR1E470B
Subtotal (1 pack of 10 units)
R 39,55(exc. VAT)
R 3,955/unit
In Stock
  • RS stock no. 449-1012
  • Mfr. Part No. EEAFC1E220
Subtotal (1 pack of 5 units)
R 32,94(exc. VAT)
R 6,588/unit
In Stock
  • RS stock no. 276-6091
Subtotal (1 unit)
R 102,75(exc. VAT)
R 102,75/unit
In Stock
  • RS stock no. 181-3517
  • Mfr. Part No. 885012207079
Subtotal (1 pack of 50 units)
R 137,40(exc. VAT)
R 2,748/unit
In Stock
  • RS stock no. 840-0278
  • Mfr. Part No. 860080674013
Subtotal (1 bag of 10 units)
R 79,47(exc. VAT)
R 7,947/unit
In Stock
  • RS stock no. 739-6799
  • Mfr. Part No. EEUFR1C101
Subtotal (1 pack of 25 units)
R 74,80(exc. VAT)
R 2,992/unit
Results per page