Typical Performance Characteristics (Continued)
6
12
10
8
VCE = 5.0V
f = 1.0 kHz
VCE = 5.0V
5
4
3
I
= 1.0 mA
C
6
I
= 100 μA, R = 200Ω
C
S
2
1
0
4
I
I
= 1.0 mA, R = 200Ω
I
= 100 μA
C
C
S
C
2
= 100 μA, R = 2.0 kΩ
S
0
0.1
1
10
100
0.1
1
10
100
f - FREQUENCY (kHz)
R
- SOURCE RESISTANCE (
)
kΩ
S
Figure 8. Noise Figure vs. Source Resistance
Figure 7. Noise Figure vs. Frequency
500
500
100
t
t
off
s
100
I
c
t
I B1
on
=
10
t
f
t
on
VBE(OFF)= 0.5V
I
10
1
10
1
t
r
I
c
c
t
IB1= IB2
=
off
IB1= IB2
=
10
10
t
d
1
10
- COLLECTOR CURRENT (mA)
100
1
10
- COLLECTOR CURRENT (mA)
100
I
I
C
Figure 10. Turn-On and Turn-Off Times vs.
Collector Current
Figure 9. Switching Times vs. Collector Current
100
10
1
1
SOT-223
0.75
TO-92
0.5
SOT-23
0.25
0
0
25
50
75
100
125
150
0.1
1
10
TEMPERATURE (oC)
I C- COLLECTOR CURRENT (mA)
Figure 12. Voltage Feedback Ratio
Figure 11. Power Dissipation vs.
Ambient Temperature
© 1997 Fairchild Semiconductor Corporation
MMBT4126 Rev. 1.1.0
www.fairchildsemi.com
4
ONSEMI [ ONSEMI ]
