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SMPS Temperature rise and life

Dynamic characteristics < > De-Rating
Measure the temperature by attaching a thermocouple as shown in the photo below.
When measuring the temperature of an electrolytic capacitor,
insulate the top surface with tape and then attach the thermocouple.
For coils and transformers, the temperature is measured by attaching a thermocouple to the windings.
Calculate temperature rise and estimated life using a form like the one below.
Calculate the life of an electrolytic capacitor using the formula on the left.
It was provided by an electrolytic capacitor manufacturer.
L = Electrolytic capacitor life
Lo = Basic life of electrolytic capacitor
T1 = Maximum allowable temperature for electrolytic capacitors
T2 = Electrolytic capacitor case temperature

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