5) Maximum power dissipation

・ Maximum power dissipation (IEC 60539-1)
The power rating is the maximum power for a continuous load at the rated temperature.
This was referred to as "Power rating" previously.
Measuring conditions for all parts in this catalog are as follows: 25˚C ambient temperature.




・Permissible operating power
Definition : The power to reach the maximum operating temperature through self heating when using a thermistor for temperature compensation or as a temperature sensor.
The permissible operating power, when ta ˚C is the permissible temperature rise, can be calculated using the following formula.


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