Paper Capacitors

Paper capacitors are a type of capacitor with a layered construction of aluminium sheets separated by waxed or oiled paper sheets. The paper between the aluminium acts as the dielectric (insulating) material. Some paper capacitors feature a cardboard cover while others are encapsulated in hard plastic. RS Components have a broad range of paper capacitors that covers an expansive set of capacitances and voltages, with products from industry leading brands such as KEMET and Cornell-Dubilier.

What do capacitors do?

Capacitors are a type of passive component that stores an electrical charge. The more charge a capacitor can store, the larger its capacitance is. Capacitance is measured in denominations of farads – such as microfarads or picofarads.

What are the advantages and disadvantages of paper capacitors?

  • Paper capacitors have a high working voltage and a high capacitance range. They are suited to high voltage and high current applications.
  • The paper dielectric provides excellent stability and reliability of the component.
  • Paper capacitors tend to have high leakage rates, making them unsuitable for applications such as AC coupling.
  • Paper capacitors typically have tolerances between ±10% and ±20%, making them unsuitable for precision timing circuits.

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Description Price Capacitance Voltage Series Lead Pitch Tolerance Minus Tolerance Plus Tolerance Suppression Class Package/Case Mounting Type Length Height Depth Dimensions
RS Stock No. 871-6343
Mfr. Part No.SCRN256R-F
TWD10,404.80
Each (In a Pack of 5)
units
10 µF 2 kV Pk SCR 2in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 116mm 146mm 95mm 116 x 95 x 146mm
RS Stock No. 871-6306
Mfr. Part No.SCRN247R-F
TWD1,943.20
Each (In a Pack of 5)
units
500 nF 2 kV Pk SCR 0.81in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 55mm 67mm 33mm 55 x 33 x 67mm
RS Stock No. 871-6309
Mfr. Part No.SCRN234R-F
TWD1,384.00
Each
units
2 µF 1000 V dc SCR 0.81in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 55mm 80mm 33mm 55 x 33 x 80mm
RS Stock No. 871-6302
Mfr. Part No.SCRN246R-F
TWD2,192.00
Each
units
250 nF 2 kV Pk SCR 0.81in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 55mm 54mm 33mm 55 x 33 x 54mm
RS Stock No. 871-6295
Mfr. Part No.OTBH504KNPIR-F
TWD596.20
Each (In a Pack of 100)
units
500 nF 660 V ac, 1500 V dc OTB 0.81in -10% +10% ±10% - Oval metal case Solder Lug 55mm 54mm 33mm 55 x 33 x 54mm
RS Stock No. 871-6277
Mfr. Part No.SCRN248R-F
TWD1,883.00
Each
units
1 µF 2 kV Pk SCR 0.81in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 55mm 80mm 33mm 55 x 33 x 80mm
RS Stock No. 871-6299
Mfr. Part No.SCRN233R-F
TWD1,977.80
Each (In a Pack of 5)
units
1 µF 1000 V dc SCR 0.81in -10% +10% ±10% - Tin Plated Steel or Aluminum Screw Terminal-Stud 55mm 54mm 33mm 55 x 33 x 54mm