2N5550, 2N5551
100
70
50
10.2 V
V
in
10
ms
INPUT PULSE
t
r
, t
f
≤
10 ns
DUTY CYCLE = 1.0%
0.25
mF
C, CAPACITANCE (pF)
V
BB
−8.8 V
100
R
B
5.1 k
V
in
100
1N914
3.0 k
V
CC
30 V
R
C
V
out
30
20
10
7.0
5.0
3.0
2.0
1.0
0.2
0.3
0.5 0.7 1.0
2.0
3.0
5.0 7.0
10
20
C
ibo
C
obo
T
J
= 25°C
Values Shown are for I
C
@ 10 mA
V
R
, REVERSE VOLTAGE (VOLTS)
Figure 6. Switching Time Test Circuit
Figure 7. Capacitances
1000
500
300
t, TIME (ns)
200
100
50
30
20
10
0.2 0.3 0.5
t
d
@ V
EB(off)
= 1.0 V
V
CC
= 120 V
t
r
@ V
CC
= 30 V
I
C
/I
B
= 10
T
J
= 25°C
t
r
@ V
CC
= 120 V
5000
3000
2000
1000
500
300
200
100
1.0
2.0 3.0 5.0 10
20 30 50
I
C
, COLLECTOR CURRENT (mA)
100
200
50
0.2 0.3 0.5
1.0 2.0 3.0 5.0
10
20 30 50
I
C
, COLLECTOR CURRENT (mA)
100
200
t
s
@ V
CC
= 120 V
t
f
@ V
CC
= 120 V
t
f
@ V
CC
= 30 V
I
C
/I
B
= 10
T
J
= 25°C
Figure 8. Turn−On Time
t, TIME (ns)
Figure 9. Turn−Off Time
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