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

46478 Products showing for Capacitors

1 of 999+
Temporarily out of stock
KEMET 680 nF Multilayer Ceramic Capacitor, 50 V dc, ±10 %, Surface Mount
  • RS Stock No. 146-6570
  • Mfr. Part No. C0805C684K5RACTU
Subtotal (1 reel of 2500 units)
HK$957.50
In Stock
KEMET 680 nF Multilayer Ceramic Capacitor, 50 V dc, ±10 %, Surface Mount
  • RS Stock No. 169-6725
  • Mfr. Part No. C0805C684K5RACTU
Subtotal (1 reel of 1000 units)
HK$560.00
In Stock
RS PRO 2.2 μF Electrolytic Tantalum Electrolytic Capacitor 50 V dc, Through Hole, CB1H Series
  • RS Stock No. 181-4698
Subtotal (1 pack of 10 units)
HK$80.50
In Stock
KEMET 1 mF Through Hole Polymer Capacitor, 16 V dc
  • RS Stock No. 124-8268
  • Mfr. Part No. A750MS108M1CAAE013
Subtotal (1 pack of 5 units)
HK$41.90
Limited stock
Panasonic 820 μF Capacitor 6.3 V dc, Radial, Through Hole - EEUFM0J821L Radial Lead
  • RS Stock No. 526-1070
  • Mfr. Part No. EEUFM0J821L
Subtotal (1 pack of 5 units)
HK$24.40
In Stock
NIC Components 0.22 F Supercapacitor -20 to 80 % Tolerance, NEXC 5.5 V dc, Surface
  • RS Stock No. 716-6955
  • Mfr. Part No. NEXC224Z5.5V10.5X8.5TRF
Subtotal (1 unit)
HK$41.90
In Stock
TDK 1.5 nF Multilayer Ceramic Capacitor, 630 V dc, ±5 %, Surface
  • RS Stock No. 179-5441
  • Mfr. Part No. CGA5H4C0G2J152J115AA
Subtotal (1 pack of 50 units)
HK$63.80
Last RS stock
Yageo 1 nF Multilayer Ceramic Capacitor, 1 kV dc, ±5 %, Surface
  • RS Stock No. 199-1930
  • Mfr. Part No. CC1206JKNPOCBN102
Subtotal (1 tape of 25 units)
HK$47.00
In Stock
Nichicon 470 μF Capacitor 100 V dc, Radial, Through Hole - UVZ2A471MHD Radial Lead
  • RS Stock No. 845-4903
  • Mfr. Part No. UVZ2A471MHD
Subtotal (1 pack of 5 units)
HK$61.90
In Stock
Panasonic 220 μF Capacitor 16 V dc, Through Hole - EEUFC1C221 Radial Lead
  • RS Stock No. 449-0974
  • Mfr. Part No. EEUFC1C221
Subtotal (1 pack of 5 units)
HK$17.00
Being discontinued
TDK 82 pF Multilayer Ceramic Capacitor, 50V, ±5 % Radial
  • RS Stock No. 194-0468
  • Mfr. Part No. FG28C0G1H820JNT00
Subtotal (1 pack of 10 units)
HK$10.10
In Stock
Vishay 1 μF MnO2 Tantalum Capacitor 35 V dc, Through Hole, 489D Series
  • RS Stock No. 684-4336
  • Mfr. Part No. 489D105X0035B6VE3
Subtotal (1 pack of 5 units)
HK$22.60
In Stock
RS PRO 10 μF Electrolytic Tantalum Electrolytic Capacitor 35 V dc, Through Hole, CB1V Series
  • RS Stock No. 181-4673
Subtotal (1 pack of 10 units)
HK$116.10
In Stock
KEMET C4AF Film Capacitor, 10 %, 3.3 μF 310 V dc 310 V ac, Through Hole
  • RS Stock No. 258-4236
  • Mfr. Part No. C4AF9BU4330F11K
Subtotal (1 box of 72 units)
HK$1,117.296
In Stock
TDK Single Layer Ceramic Capacitor 47 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1893
  • Mfr. Part No. CC45SL3AD470JYVNA
Subtotal (1 tape of 20 units)
HK$21.00
In Stock
RS PRO 1 μF Electrolytic Tantalum Electrolytic Capacitor 50 V dc, Through Hole, CB Series
  • RS Stock No. 181-4666
Subtotal (1 pack of 20 units)
HK$96.50
Temporarily out of stock
RS PRO 33 μF Electrolytic Tantalum Electrolytic Capacitor 35 V dc, Through Hole, CB Series
  • RS Stock No. 181-4713
Subtotal (1 pack of 5 units)
HK$163.10
In Stock
RS PRO 4.7 μF Electrolytic Tantalum Electrolytic Capacitor 35 V dc, Through Hole, CB1V Series
  • RS Stock No. 181-4644
Subtotal (1 pack of 20 units)
HK$84.60
In Stock
Murata 22 μF Multilayer Ceramic Capacitor, 10 V dc, ±20 %, Surface
  • RS Stock No. 276-3747
  • Mfr. Part No. GRM158R61A226ME15D
Subtotal (1 tape of 10 units)
HK$14.70
In Stock
Nichicon 470 μF Capacitor 16 V dc, Through Hole - UVK1C471MPD PC Pin
  • RS Stock No. 475-7766
  • Mfr. Part No. UVK1C471MPD
Subtotal (1 pack of 5 units)
HK$14.80
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