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General technical data

Operating temperature of spring contact probes

Lubrication and spring material determine the operating temperature of a probe. Most probes are lubricated to increase mechanical lifetime and have a maximum operating temperature of +120°C. Probes operatig outside of this range should be non-lubricated.

Spring material is the other factor affecting the maximum operating temperature of a probe. Various materials lose their spring properties (anneal) at different temperatures.

The chart below lists the operating temperatures for the various spring materials lubricated and non-lubricated:

Lubricated

  Music Wire BeCu Stainless steel
Min. -55°C -55°C -55°C
Max. +120°C +120°C 120°C

Non-Lubricated (1hr. exposure)

  Music Wire BeCu Stainless steel
Min. -55°C -55°C -55°C
Max +120°C +205°C +260°C

Non-Lubricated (24hr. exposure)

  Music Wire BeCu Stainless steel
Min. -55°C -55°C -55°C
Max +85°C +120°C +180°C

NOTE:
Spring materials used in each probe are listed on the corresponding data sheet.