
VISHAY
MHz
103
fr
102
Tamb = 25 °C
-VCE = 10 V
5V
2V
10
0.1
19198
1
10
100 mA
-IC
Figure 9. Gain-Bandwidth Product vs. Collector Current
dB
20
18
-VCE = 5 V
f = 120 Hz
16
14
RG = 1 MΩ
500 Ω
12
F
10
8
6
4
2
19199
010-3
10-2
100 kΩ 10 kΩ 1kΩ
10-1
-IC
Tamb = 25 °C
1
10 mA
Figure 10. Noise Figure vs. Collector Current
dB
20
18
-VCE = 5 V
f = 120 Hz
16 Tamb = 25 °C
14
12
F
10
8
RG = 1 MΩ 100 kΩ
6
4
2
19200
010-3
10-2
10-1
-IC
10 kΩ
1kΩ
500 Ω
1
10 mA
Figure 11. Noise Figure vs. Collector Current
BC856 to BC859
Vishay Semiconductors
dB
20 -IC = 0.2 mA
18 f = 1 kHz
16 RG = 2 kΩ
14 Tamb = 25 °C
12
F 10
8
6
4
2
00.1
1
19201
10
-VCE
100 mA
Figure 12. Noise Figure vs. Collector Emitter Voltage
Document Number 85135
Rev. 1.2, 08-Sep-04
www.vishay.com
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