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BC848CDW1T1 Datasheet(Hoja de datos) 5 Page - E-Tech Electronics LTD

No. de Pieza. BC848CDW1T1
Descripción  Dual General Purpose Transistors
Descarga  5 Pages
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Fabricante  ETL [E-Tech Electronics LTD]
Página de inicio  http://e-tech.com.hk
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BC846b–5/5
BC846BDW1T1, BC847BDW1T1, BC847CDW1T1, BC848BDW1T1, BC848CDW1T1
SINGLE PULSE
t 1
Z
θJA (t) = r(t) R θJA
R
θJA = 328°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t
1
T
J(pk) – T C = P (pk) R
θJC (t)
t 2
P (pk)
DUTY CYCLE, D = t 1 /t 2
D=0.5
0.2
0.1
0.05
0.02
0.01
t, TIME (ms)
Figure 11. Thermal Response
0
1.0
10
100
1.0K
10K
100K
1.0M
1.0
0.1
0.01
0.001
-200
-100
-50
-10
-5.0
-2.0
-1.0
-5.0
-10
-30
-45
-65
-100
V
CE , COLLECTOR–EMITTER VOLTAGE (V)
Figure 12. Active Region Safe Operating Area
The safe operating area curves indicate I C –V CE limits of
thetransistor that must be observed for reliable operation.
Collector load lines for specific circuits must fall below the
limits indicated by the applicable curve.
The data of Figure 12 is based upon T J(pk) = 150°C; T C or
T A is variable depending upon conditions. Pulse curves are
valid for duty cycles to 10% provided T J(pk) < 150°C. T J
(pk) may be calculated from the data in Figure 12. At high
case or ambient temperatures, thermal limitations will reduce
the power that can be handled to values less than the limita-
tions imposed by the secondary breakdown.




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