Output derating

In electrical and electronic equipment, exceeding the upper or lower limit of the rated operating temperature often results in reduced reliability at the rated output current (power), which is then restricted to a smaller value. Therefore, when using equipment near the upper or lower limit of the rated temperature, it is common to use it at a value smaller than the rated one, taking output current (power) limitations into account. This ensures reliability and prevents equipment failure due to high (or low) temperatures.