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BC635, BC637, BC639, BC639−16
High Current Transistors
NPN Silicon
Features
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector - Emitter Voltage
VCEO
Vdc
BC635
45
BC637
60
BC639
80
Collector - Base Voltage
VCBO
Vdc
BC635
45
BC637
60
BC639
80
Emitter - Base Voltage
Collector Current − Continuous
Total Device Dissipation @ TA = 25°C Derate above 25°C
VEBO IC PD
5.0 Vdc
1.0 Adc
625 mW 5.0 mW/°C
Total Device Dissipation @ TC = 25°C Derate above 25°C
PD
800 mW 12 mW/°C
Operating and Storage Junction Temperature Range
TJ, Tstg −55 to +150 °C
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction−to−Ambient
Symbol RqJA
Max 200
Unit °C/W
Thermal Resistance, Junction−to−Case
RqJC
83.