BF844 查看數據表（PDF） - Motorola => Freescale
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BF844 Datasheet PDF : 6 Pages
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BF844
10
5.0
2.0
1.0
0.5
VCC = 150 V
IC/IB = 10
0.2 TA = 25°C
VBE(off) = 4.0 Vdc
0.1
1.0
3.0
10
tr
td
30 50
100
IC, COLLECTOR CURRENT (mA)
Vin
+9.7 V
PW = 50 µs
DUTY CYCLE = 2.0%
0
–4.0 V
RB
Vin
VCC
RL
Vout
CS ≤ 4.0 pF*
Figure 7. Turn–On Switching Times and Test Circuit
10
5.0
2.0
1.0
0.5
0.2
0.1
1.0
Vin
+10.7 V
ts
PW = 50 µs
DUTY CYCLE = 2.0%
VCC = 150 V
tf
IC/IB = 10
TA = 25°C
3.0
10
30 50
100
IC, COLLECTOR CURRENT (mA)
–11.4 V
RB
Vin
VCC
RL
Vout
CS ≤ 4.0 pF*
Figure 8. Turn–Off Switching Times and Test Circuit
* Total Shunt Capacitance or Test Jig and Connectors.
4
Motorola Small–Signal Transistors, FETs and Diodes Device Data
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