Contact cleaner

Contact cleaner, also known as switch cleaner, is a term for a chemical, or a mixture of chemicals, intended to remove or prevent the build-up of oxides or other unwanted substances on the conductive surfaces of connectors, switches and other electronic components with moving surface contacts, and thus reduce the contact resistance encountered.[1][2][3] The use of contact cleaner can help to minimise the wetting current across a pair of contacts.[4]

An example of a simple contact cleaner is isopropyl alcohol.[5][2]

Some contact cleaners are designed to evaporate completely and rapidly, leaving no residue.[6][7] Others may contain lubricants.[8][9] Lubricants themselves should not necessarily be used as contact cleaners, especially if they are designed to leave an unsuitable residue.[10] However, appropriate lubricants may work well as contact cleaners.[11]

Contact cleaner brands include Scotch (3M),[12] Servisol,[13] CRC,[10][14] and Deoxit.[15][16][16][17] The function of contact cleaner can be understood by consideration of electrical contact theory.

References

  1. "Boating". 1 August 1971 via Google Books.
  2. Ronan, Dave (17 August 1994). Practical VCR Repair. Cengage Learning. ISBN 0827365837 via Google Books.
  3. "Health Devices". Emergency Care Research Institute. 29 August 1983 via Google Books.
  4. "Down and Dirty with Contact Cleaners". 17 February 2017.
  5. Docter, Quentin; Dulaney, Emmett; Skandier, Toby (17 September 2012). CompTIA A+ Complete Study Guide: Exams 220-801 and 220-802. John Wiley & Sons. ISBN 9781118421659 via Google Books.
  6. "Corrosion Prevention and Control". Scientific Surveys Limited. 17 August 1967 via Google Books.
  7. "Info" (PDF). nora.nerc.ac.uk.
  8. Schroeder, Don; Lare, Gary (17 August 1979). Audiovisual Equipment and Materials: A Basic Repair and Maintenance Manual. Scarecrow Press. ISBN 9780810812062 via Google Books.
  9. Wood, Steve; Wysmierski, Kristin (1 June 2010). "An ounce of prevention can save a pound of audiometer trouble". The Hearing Journal. 63 (6): 48–49. doi:10.1097/01.HJ.0000382731.86660.4c.
  10. Greene, Nik (31 March 2017). Buying and Maintaining a 126 S-Class Mercedes. The Crowood Press. ISBN 9781785002458 via Google Books.
  11. "Recovery of severely degraded tin-lead plated connector contacts due to fretting corrosion - IEEE Journals & Magazine". ieeexplore.ieee.org.
  12. Giddings, Philip (1 January 1990). Audio systems design and installation. Sams. ISBN 9780672226724 via Google Books.
  13. "Q. What's wrong with my patchbay? -". www.soundonsound.com.
  14. "Electronics World". Ziff-Davis Publishing Company. 17 August 1971 via Google Books.
  15. "Q. What should I use to clean connectors? -". www.soundonsound.com.
  16. "Identifying & Solving Mains Supply Problems -". www.soundonsound.com.
  17. "Q. Can I spray-lube my crackly pots? -". www.soundonsound.com.
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