2N4401BU Datasheet, PDF (5/7 Pages) Fairchild Semiconductor – This device is designed for use as a medium power amplifier and switch requiring collector currents up to 500 mA

NPN General Purpose Amplifier
(continued)
Typical Common Emitter Characteristics (f = 1.0kHz)
Common Emitter Characteristics
8
V_CE = 10 V
T _A = 25^oC
6
hoe
4
h re
2
h fe
h ie
0
0
10
20
30
40
50
60
I _C - COLLECTOR CURRENT (mA)
Common Emitter Characteristics
2.4
V_CE = 10 V
2 ^{I C = 10 mA}
hre
h_ie
1.6
hfe
1.2
hoe
0.8
0.4
0
0
20
40
60
80
100
T _A - AMBIENT TEMPERATURE (^o C)
Common Emitter Characteristics
1.3
1.25
1.2
I _C= 10 mA
T _A = 25^oC
h _fe
1.15
1.1
h _ie
1.05
1
0.95
h _re
0.9
0.85
0.8
hoe
0.75
0
5
10 15 20 25 30 35
V_CE - COLLECTOR VOLTAGE (V)