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BC857S Datasheet, PDF (4/6 Pages) Siemens Semiconductor Group – PNP Silicon AF Transistor Array (For AF input stages and driver applications High current gain Low collector-emitter saturation voltage)
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BC 857S
Total power dissipation Ptot = f (TA*;TS)
* Package mounted on epoxy
300
mW
Ptot
200
150
TS
TA
100
50
0
0 20 40 60 80 100 120 °C 150
TA,TS
Permissible Pulse Load RthJS = f (tp)
10 3
K/W
10 2
RthJS
10 1
10 0
0.5
0.2
0.1
0.05
0.02
0.01
0.005
D=0
Permissible Pulse Load
Ptotmax / PtotDC = f (tp)
10 3
-
Ptotmax
/ PtotDC10 2
10 1
D=0
0.005
0.01
0.02
0.05
0.1
0.2
0.5
10
-1
10
-6
10 -5
10 -4
10 -3
10 -2
Semiconductor Group
s
10 0
tp
4
10
0
10
-6
10 -5
10 -4
10 -3
10 -2
s
10 0
tp
May-12-1998
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