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2N4427
CASE 79-02, STYLE 1
TO-39 (TO-205AD)
HIGH FREQUENCY TRANSISTOR
NPN SILICON 4U
MAXIMUM RATINGS
Rating
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage
Base Current
—Collector Current Continuous
@Total Device Dissipation Ta = 25°C
Derate above 25°C Total Device Dissipation (& Tq = 25°C
Derate above 25°C
Storage Temperature
Symbol VCEO VCBO v EBO
>B ic
PD
Pd
Tstg
Value 20 40
2.0
400 400
1.0 5.71
3.5 20
-65 to +200
Unit Vdc Vdc Vdc
mAdc mAdc
Watt mW/°C Watts mW/°C
°C
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted.)
Characteristic
OFF CHARACTERISTICS
Collector-Emitter Sustaining Voltage dC = 5.0 mAdc, RgE = 10 ohms)
Collector-Emitter Sustaining Voltage (IC = 5.