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LMBT3908LT1G_15 Datasheet, PDF (4/7 Pages) Leshan Radio Company – General Purpose Transistor | |||
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LESHAN RADIO COMPANY, LTD.
LMBT3908LT1G ;S-LMBT3908LT1G
500
300
I C /I B = 10
200
100
70
50
30
20
10
7
5
1.0
t r @ V CC = 3.0 V
40 V
15 V
t d @ V OB = 0 V
2.0 V
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 5. TurnâOn Time
500
300
200 I C /I B =20
I C /I B =10
t âs = t s â1 /8 tf
I B1 = I B2
100
70
50
I C /I B =20
30
I C /I B =10
20
10
7
5
1.0
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 7. Storage Time
500
300
200
100
70
50
30
20
10
7
5
1.0
500
300
200
100
70
50
30
20
10
7
5
1.0
V CC = 40 V
I C /I B = 10
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 6. Rise Time
I C /I B = 20
V CC = 40 V
I B1 = I B2
I C /I B = 10
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 8. Fall Time
TYPICAL AUDIO SMALLâSIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(V CE = 5.0 Vdc, T A = 25°C, Bandwidth = 1.0 Hz)
12
SOURCE RESISTANCE=200â¦
10
I C = 1.0 mA
8
SOURCE RESISTANCE =200â¦
I C = 0.5 mA
6
SOURCE RESISTANCE =1.0k
I C = 50µA
4
2 SOURCE RESISTANCE=500â¦
I C = 100 µA
0
0.1 0.2 0.4
1.0 2.0 4.0
10 20 40
100
f, FREQUENCY (kHz)
Figure 9.
14
12 f = 1.0 kHz I C = 1.0 mA
10
I C = 0.5 mA
8
6
I C = 50 µA
I C = 100 µA
4
2
0
0.1 0.2 0.4
1.0 2.0 4.0
10 20 40
100
R S , SOURCE RESISTANCE (kâ¦)
Figure 10.
Rev.O 4/7
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