2N3947
w w w. c e n t r a l s e m i . c o m
SILICON
NPN TRANSISTOR DESCRIPTION:
The CENTRAL SEMICONDUCTOR 2N3947 is a silicon
NPN transistor designed for general purpose applications.
MARKING: FULL PART NUMBER
TO-18 CASE
MAXIMUM RATINGS: (TA=25°C unless otherwise noted)
SYMBOL UNITS
Collector-Base Voltage VCBO 60 V
Collector-Emitter Voltage VCEO 40 V
Emitter-Base Voltage VEBO 6.0 V
Continuous Collector Current IC 200 mA
Power Dissipation PD 360 mW
Power Dissipation (TC=25°C) PD 1.2 W
Operating and Storage Junction Temperature TJ, Tstg -65 to +200 °C
Thermal Resistance ΘJC 146 °C/W
Thermal Resistance ΘJA 486 °C/W
ELECTRICAL CHARACTERISTICS: (TA=25°C unless otherwise noted)
SYMBOL TEST CONDITIONS MIN MAX UNITS
ICEX VCE=40V, VEB=3.0V 10 nA
ICEX VCE=40V, VEB=3.0V, TA=150°C 15 μA
BVCBO IC=10μA 60 V
BVCEO IC=10mA 40 V
BVEBO IE=10μA 6.0 V
VCE(SAT) IC=10mA, IB=1.0mA 0.2 V
VCE(SAT) IC=50mA, IB=5.0mA 0.3 V
VBE(SAT) IC=10mA, IB=1.0mA 0.6 0.9 V
VBE(SAT) IC=50mA, IB=5.0mA 1.0 V
hFE VCE=1.0V, IC=0.1mA 60
hFE VCE=1.0V, IC=1.0mA 90
hFE VCE=1.0V, IC=10mA 100 300
hFE VCE=1.0V, IC=50mA 40
fT VCE=20V, IC=10mA, f=100MHz 300 MHz
Cob VCB=10V, IE=0, f=1.0MHz 4.0 pF
Cib VEB=1.0V, IC=0, f=1.0MHz 8.0 pF
R0 (24-March 2014)
2N3947
SILICON
NPN TRANSISTOR
ELECTRICAL CHARACTERISTICS - Continued: (TA=25°C unless otherwise noted)
SYMBOL TEST CONDITIONS MIN MAX UNITS
hie VCE=10V, IC=1.0mA, f=1.0kHz 20 12 kΩ
hre VCE=10V, IC=1.0mA, f=1.0kHz 20 x10-4
hfe VCE=10V, IC=1.0mA, f=1.0kHz 100 700
hoe VCE=10V, IC=10mA, f=1.0kHz 5.0 50 μS
rb’Cc VCE=20V, IC=10mA, f=31.8MHz 200 ps
NF VCE=5.0V, IC=100μA, Rg=1.0kΩ, f=1.0kHz 5.0 dB
td VCC=3.0V, VBE=0.5V, IC=10mA, IB1=1.0mA 35 ns
tr VCC=3.0V, VBE=0.5V, IC=10mA, IB1=1.0mA 35 ns
ts VCC=3.0V, IC=10mA, IB1=IB2=1.0mA 375 ns
tf VCC=3.0V, IC=10mA, IB1=IB2=1.0mA 75 ns
TO-18 CASE - MECHANICAL OUTLINE
LEAD CODE:
1) Emitter
2) Base
3) Collector
MARKING:
FULL PART NUMBER
R0 (24-March 2014)
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