Transistor
P
C
鈥?Ta
240
12
Ta=25藲C
200
10
I
B
=100碌A
80碌A
8
60碌A
6
40碌A
10
2SC2778
I
C
鈥?V
CE
12
V
CE
=10V
Ta=25藲C
I
C
鈥?I
B
Collector power dissipation P
C
(mW)
Collector current I
C
(mA)
160
Collector current I
C
(mA)
18
8
120
6
80
4
4
40
2
20碌A
2
0
0
20
40
60
80 100 120 140 160
0
0
6
12
0
0
60
120
180
Ambient temperature Ta (藲C)
Collector to emitter voltage V
CE
(V)
Base current I
B
(
碌A
)
I
C
鈥?V
BE
Collector to emitter saturation voltage V
CE(sat)
(V)
60
V
CE
=10V
50
100
30
10
3
1
0.3
V
CE(sat)
鈥?I
C
I
C
/I
B
=10
300
h
FE
鈥?I
C
V
CE
=10V
Forward current transfer ratio h
FE
250
Ta=75藲C
200
25藲C
150
鈥?5藲C
100
Collector current I
C
(mA)
40
25藲C
30
Ta=75藲C
20
鈥?5藲C
Ta=75藲C
25藲C
0.1
鈥?5藲C
0.03
0.01
0.1
10
50
0
0
0.4
0.8
1.2
1.6
2.0
0.3
1
3
10
30
100
0
0.1
0.3
1
3
10
30
100
Base to emitter voltage V
BE
(V)
Collector current I
C
(mA)
Collector current I
C
(mA)
f
T
鈥?I
E
600
Ta=25藲C
80
Z
rb
鈥?I
E
Common emitter reverse transfer capacitance C
re
(pF)
2.4
C
re
鈥?V
CE
f=2MHz
Ta=25藲C
I
C
=1mA
f=10.7MHz
Ta=25藲C
Reverse transfer impedance Z
rb
(
鈩?/div>
)
Transition frequency f
T
(MHz)
70
60
50
40
30
20
10
0
鈥?0.1
V
CB
=6V
10V
500
2.0
400
V
CB
=10V
6V
200
1.6
300
1.2
0.8
100
0.4
0
鈥?0.1 鈥?0.3
鈥?
鈥?
鈥?0
鈥?0
鈥?00
鈥?0.3
鈥?
鈥?
鈥?0
0
0.1
0.3
1
3
10
30
100
Emitter current I
E
(mA)
Emitter current I
E
(mA)
Collector to emitter voltage V
CE
(V)
2
1
2
3
