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MAXIMUM RATINGS
Rating
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage
—Collector Current Continuous
Total Device Dissipation (a T"a = 25°C Derate above 25°C
@Total Device Dissipation Tc = 25°C
Derate above 25°C
Operating and Storage Junction Temperature Range
Symbol VCEO VCBO VEBO
"C
PD
Pd
Tj, Tstg
Value 40 60 6.0 200 0.36 2.06
1.2 6.9
-65 to + 200
Unit Vdc Vdc Vdc
mAdc
Watt mW/°C Watts mW/°C
°C
THERMAL CHARACTERISTICS
Characteristic Thermal Resistance, Junction to Case
Thermal Resistance, Junction to Ambient
Symbol Rojc R&JA
0.49
Unit
°C/mW °C/mW
2N3946 2N3947
CASE 22-03, STYLE 1
TO-18 (TO-206AA)
GENERAL PURPOSE TRANSISTOR
NPN SILICON
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted.
2N3946 Datasheet
