Raise the temperature from Tmin to Tmax within 30s or less. Keep the DUT at Tmin or Tmax for a given soak time after the thermal stability is obtained. The soak time can be agreed between customer and supplier, or the exposure time can be chosen among the values 20 min, 40 min, 60 min or 90 min, depending on its size and other properties of the DUT. Use operating mode 1.1.The required number of cycles shall be 200.