BD643 Datasheet, PDF (1/2 Pages) Siemens Semiconductor Group – NPN SILICON DARLINGTON TRANSISTORS

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NPN Silicon Darlington Transistors
Eplbase power darlington transistors (62.5W)
BD843
BD645
BD847
BD649
BO 643, BD 645, BD 647, and BD 649 are monolithic NPN Silicon epibase power darlington
transistors with diode and resistors in a TO 220 AB plastic package (TOP-66). The collectors
of the two transistors are electrically connected to the metallic mounting area. These
darlington transistors for AF applications are outstanding for particularly high current
gain. Together with BD 644, BO 646, BD 648, and BD 650, they are particularly suitable
for use as complementary AF push-pull output stages.
Type
BD643
BO 643/BD 644
BD64S
BO 645/8D 646
BD647
BD 647/BD 648
BD649
BD 649/BD 650
Insulating nipple
Mica washer
Spring washer
A 3 DIN 137
Chang* In dimensional drawings in preparation.
Approx. weight 18 g.Dlmanaion) In mm
Maximum ratings
Collector-emitter voltage
VCEO
Collector-base voltage
VCBO
Base-emitter voltage
VEBO
Collector current
h
Collector-peak current [t < 10 ms) _ICM
Base current
IB
Storage temperature range
Junction temperature
Ti
Total power dissipation
Pfot
Thermal resistance
Junction to ambient air
Junction to case11
flthJC
BD643 BD645 BD647 BD649
45
60'
80
100 V
45
60
80
100 V
5
5
5
5
V
8
8
8
8
A
12
12
12
12
A
150
150
160
150 mA
-55 to + 150
°C
150
150
150
150 "C
62,5
62,6
62,5
62,5
W
£80 £80 £80 £80 K/W
&2
32
£2 K/W
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