A transistor junction has a power loss of 45 W and a junction to case thermal resistance of 1.1°C/W. The case is mounted on the heat sink #6 with 35-μm-thick mica insulation with thermal grease resulting in the case to heat sink thermal resistance of 0.7°C/W. The air temperature inside the converter cabinet can be as high as 65°C. Determine the maximum junction temperature in this device.