Will coating be generated on the contact surface even in the NC state?

Question:

Will coating be generated on the contact surface even in the NC state?

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Answer:

If the contact surface is made of gold or gold alloy, the formation of oxide film is assumed to be less likely.

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Explanation:

The contact surface used in the NC state will not be corroded when it is not opened and closed, while it may be corroded around the silver contact. If the contact material is gold alloy, film formation is less likely. However, the operating environment may affect the contact surface differently. Please evaluate it based on the environment, actual equipment and actual load before deciding whether to use the switch.

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Quick tips

We recommend the sealed basic switch (IP67) with a microload (0.1 A rating: gold contact) as a type with less coating formation.


Product category

Switches Basic Switches


Classification

Usage, Applications


Related keywords

Basic Switch
NC State
Formation of Oxide Film
Gold Alloy Contact
Silver Contact
Sealed Basic Switch

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Switches | DigiKey Electronics


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Will coating be generated on the contact surface even in the NC state? | FAQ | OMRON Device & Module Solutions - Americas