Temperature cycle

A test to examine the resistance of electrical and electronic components to temperature environments. The test temperature conditions vary depending on the usage environment of the component, but mainly consist of the following three items.

1. Resistance to maximum temperature
2. Resistance to minimum temperature
3. Resistance to changes from maximum temperature to minimum temperature and
   vice versa

For items 1 and 2, depending on the component, the maximum temperature may reach 300℃ and the minimum temperature may reach -50℃.
Item 3 mainly examines resistance to expansion due to heating and contraction due to cooling. In this case, stress caused by differences in the coefficients of thermal expansion of the materials composing the component can lead to defects, so heating and cooling are repeated a specified number of times to evaluate resistance to temperature changes.

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