LMBT3904DW1T1G Datasheet, PDF (5/7 Pages) Leshan Radio Company – Dual General Purpose Transistor

LESHAN RADIO COMPANY, LTD.
LMBT3904DW1T1G
TYPICAL AUDIO SMALL–SIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(VCE = 5.0 Vdc, TA = 25°C, Bandwidth = 1.0 Hz)
12
14
SOURCE RESISTANCE = 200 W
10
IC = 1.0 mA
12 ^{f = 1.0 kHz IC = 1.0 mA}
8
SOURCE RESISTANCE = 200 W
IC = 0.5 mA
6
SOURCE RESISTANCE = 1.0 k
IC = 50 mA
4
10
IC = 0.5 mA
8
6
4
IC = 50 mA
IC = 100 mA
2 _{SOURCE RESISTANCE = 500 W}
IC = 100 mA
0
0.1 0.2 0.4
1.0 2.0 4.0
10 20 40 100
f, FREQUENCY (kHz)
2
0
0.1 0.2 0.4 1.0 2.0 4.0 10 20 40 100
RS, SOURCE RESISTANCE (k OHMS)
Figure 9. Noise Figure
Figure 10. Noise Figure
h PARAMETERS
(VCE = 10 Vdc, f = 1.0 kHz, TA = 25°C)
300
100
50
200
20
100
10
70
5
50
2
30
0.1
0.2 0.3 0.5
1.0
2.0 3.0 5.0
10
IC, COLLECTOR CURRENT (mA)
Figure 11. Current Gain
20
10
5.0
2.0
1.0
0.5
0.2
0.1
0.2 0.3 0.5
1.0
2.0 3.0 5.0
10
IC, COLLECTOR CURRENT (mA)
Figure 13. Input Impedance
1
0.1
0.2 0.3 0.5
1.0
2.0 3.0 5.0
10
IC, COLLECTOR CURRENT (mA)
Figure 12. Output Admittance
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.1
0.2 0.3 0.5
1.0
2.0 3.0 5.0
10
IC, COLLECTOR CURRENT (mA)
Figure 14. Voltage Feedback Ratio
5/10