SEMICONDUCTORS
BD643/645/647/649/651
SILICON DARLINGTON POWER TRANSISTORS
NPN epitaxial-base transistors in a monolithic Dalrington circuit and housed in a
TO-220 enveloppe. They are intended for output stages in audio equipment,
general amplifiers, and analogue switching application.
PNP complements are BD644, BD646, BD648, BD650 and BD652
ABSOLUTE MAXIMUM RATINGS
Symbol
Ratings
BD643
BD645
BD647
BD649
BD651
BD643
BD645
BD647
BD649
BD651
BD643
BD645
BD647
BD649
BD651
BD643
BD645
BD647
BD649
BD651
BD643
BD645
BD647
BD649
BD651
Value
60
80
100
120
140
45
60
80
100
120
5
Unit
V
CBO
Collector-Base Voltage
V
V
CEO
Collector-Emitter Voltage
V
V
EBO
Emitter-Base Voltage
V
I
C
Collector Current
8
A
I
CM
Collector Peak Current
12
A
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