2N4401 Datasheet, PDF (4/6 Pages) NXP Semiconductors – NPN switching transistor

RATING AND CHARACTERISTICS CURVES ( 2N4401 )
10
IC=1.0mA, RS = 150 W
8.0
IC=500uA, RS = 200 W
IC=100uA, RS = 2.0 kW
RS = OPTIMUM
SOURCE
IC=50uA, RS = 4.0kW
RS = ^RESISTANCE
6.0
4.0
2.0
0
0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20
f, FREQUENCY (KHz)
Figure 7.Frequency Effects
300
50 100
200
100
70
4401 UNIT 1
4401 UNIT 2
50
30
20
0.1
0.2 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10
IC, COLLECTOR CURRENT (mA)
Figure 9.Cuttent Gain
10
7.0
5.0
4401 UNIT 1
3.0
4401 UNIT 2
2.0
1.0
0.7
0.5
0.3
0.2
0.1
0.2 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10
IC, COLLECTOR CURRENT (mA)
Figure 11.Voltage Feedback Ratio
10
f = 1.0 kHz
8.0
IC=50uA
IC=100uA
6.0
IC=500uA
IC=1.0mA
4.0
2.0
0
50 100 200 500 1.0k 2.0k 5.0k 10k 20k 50k 100k
RS, SOURCE RESISTANCE (OHMS)
Figure 8.Source Resistance Effects
400
300
4401 UNIT 1
4401 UNIT 2
200
100
80
60
40
30
20
0.1
100
50
0.2 0.3 0.5 0.7 1.0 2.0 3.0
IC, COLLECTOR CURRENT (mA)
Figure 10.Input Impedance
5.0 7.0 10
20
10
4401 UNIT 1
5.0
4401 UNIT 2
2.0
1.0
0.1
0.2 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10
IC, COLLECTOR CURRENT (mA)
Figure 12.Temperature Coefficients