BD743, BD743A, BD743B, BD743C
NPN SILICON POWER TRANSISTORS
AUGUST 1978 - REVISED MARCH 1997
MAXIMUM SAFE OPERATING REGIONS
MAXIMUM FORWARD-BIAS
SAFE OPERATING AREA
100
SAS637AA
I
C
- Collector Current - A
10
t
p
= 1 ms,
d = 0.1 = 10%
t
p
= 10 ms,
d = 0.1 = 10%
t
p
= 50 ms,
d = 0.1 = 10%
DC Operation
1·0
0·1
BD743
BD743A
BD743B
BD743C
0·01
1·0
10
100
1000
V
CE
- Collector-Emitter Voltage - V
Figure 4.
THERMAL INFORMATION
MAXIMUM POWER DISSIPATION
vs
CASE TEMPERATURE
100
P
tot
- Maximum Power Dissipation - W
90
80
70
60
50
40
30
20
10
0
0
25
50
75
100
125
150
T
C
- Case Temperature - °C
TIS637AA
Figure 5.
PRODUCT
INFORMATION
4