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
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

44912 產品顯示為 Capacitors

1 的 999+
有庫存
Eaton 1.5F Supercapacitor -10 → +30% Tolerance 5.4V dc, Through Hole
  • RS庫存編號 763-7832
  • 製造零件編號 PHV-5R4V155-R
个
HK$66.00
有庫存
Panasonic 4700μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFC1E472
  • RS庫存編號 315-0669
  • 製造零件編號 EEUFC1E472
个（每托盘 5 ）
HK$17.58
暫時無法供應
Nichicon 1μF Electrolytic Capacitor 50V dc, Through Hole - UMA1H010MDD
  • RS庫存編號 475-9481
  • 製造零件編號 UMA1H010MDD
个（每托盘 5 ）
HK$1.864
有庫存
KEMET R52 Polypropylene Capacitor PP, 310V ac, 10%, 2.2μF, Through Hole
  • RS庫存編號 207-7648
  • 製造零件編號 R523R422050P0K
个（每托盘 5 ）
HK$14.20
有庫存
KEMET C4AQ Metallised Polypropylene Film Capacitor, 1.1kV dc, ±5%, 12μF
  • RS庫存編號 174-4294
  • 製造零件編號 C4AQQBW5120A3FJ
个 (以毎袋：58)
HK$28.809
有庫存
KEMET 30μF Polypropylene Capacitor PP 470V ac ±5% Tolerance Chassis Mount C87 Series
  • RS庫存編號 377-8841
  • 製造零件編號 C878BF35300SA0J
个
HK$171.00
有庫存
CHEMI-CON 1200μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - ELXZ350ELL122MK30S
  • RS庫存編號 756-7840
  • 製造零件編號 ELXZ350ELL122MK30S
个（每托盘 5 ）
HK$10.38
有庫存
TDK Ceramic Single Layer Capacitor 330pF 2kV dc ±5%, CC45 series, Through Hole
  • RS庫存編號 262-1933
  • 製造零件編號 CC45SL3DD331JYNNA
个 (以毎袋：10)
HK$2.40
最後的 RS 庫存
Nichicon 47μF Electrolytic Capacitor 160V dc, Through Hole - UCA2C470MHD
  • RS庫存編號 739-4484
  • 製造零件編號 UCA2C470MHD
个（每托盘 5 ）
HK$10.18
最後的 RS 庫存
KEMET PHE850 Metallised Polypropylene Film Capacitor, 1.25 kV dc, 300 V ac, ±20%, 470nF, Through Hole
  • RS庫存編號 616-8001
  • 製造零件編號 PHE850EF6470MF14R06L2
个（每托盘 5 ）
HK$31.56
有庫存
RS PRO 220μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole
  • RS庫存編號 276-6105
个
HK$6.10
庫存資訊目前無法查詢
KEMET R82 Polyester Film Capacitor, 40 V ac, 63 V dc, ±5%, 330nF, Through Hole
  • RS庫存編號 312-1582
  • 製造零件編號 R82DC3330DQ60J
个（每托盘 10 ）
HK$1.48
有庫存
Nichicon 4700μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - UPW1E472MHD
  • RS庫存編號 715-2704
  • 製造零件編號 UPW1E472MHD
个（每托盘 5 ）
HK$20.30
暫時缺貨
Eaton 0.47F Supercapacitor -10 → +30% Tolerance 5.4V dc, Through Hole
  • RS庫存編號 763-7839
  • 製造零件編號 PHV-5R4V474-R
个
HK$47.90
暫時缺貨
Nichicon 100μF Aluminium Electrolytic Capacitor 450V dc, Radial, Through Hole - UCP2W101MHD
  • RS庫存編號 851-4144
  • 製造零件編號 UCP2W101MHD
个
HK$35.80
有庫存
CHEMI-CON 4700μF Aluminium Electrolytic Capacitor 25V dc, Snap-In - EKMQ250ELL472ML25S
  • RS庫存編號 144-7234
  • 製造零件編號 EKMQ250ELL472ML25S
个（每托盘 5 ）
HK$16.58
有庫存
Nichicon 100μF Aluminium Electrolytic Capacitor 16V dc, Surface Mount - UWZ1C101MCL1GB
  • RS庫存編號 844-0784
  • 製造零件編號 UWZ1C101MCL1GB
个（每托盘 25 ）
HK$1.872
有庫存
TDK 330nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , Through Hole
  • RS庫存編號 194-0631
  • 製造零件編號 FG26X7R2A334KNT00
个（每托盘 10 ）
HK$2.04
有庫存
Wurth Elektronik 15F Supercapacitor -10 → +30% Tolerance, WCAP-STSC 2.7V dc, Through Hole
  • RS庫存編號 185-5712
  • 製造零件編號 850617021005
个
HK$65.70
有庫存
KEMET C4AT Polypropylene Film Capacitor, 250 V ac, 400 V dc, ±5%, 10μF, Through Hole
  • RS庫存編號 123-5095
  • 製造零件編號 C4ATFBW5100A3FJ
个
HK$68.40
1
2
3
2246
每頁顯示的結果

相关链接