in Free Air Rth (j-a) 200 °C/W Electrical Characteristics (Ta = 25°C unless specified otherwise) Description Symbol Test Condition Minimum Maximum Unit Collector Emitter Voltage VCEO IC = 1mA, IB = 0 45 Collector Emitter Voltage VCES IC = 100µA, IE = 0 50 Emitter Base Voltage Colle.