2SA872, 2SA872A
1,000
300
Gain Bandwidth Product vs. Collector Current
VCE = –12 V
100
30
10
5
–0.01 –0.03 –0.1 –0.3 –1.0 –3 –10 –30
Collector Current IC (mA)
Collector Output Capacitance vs.
Collector to Base Voltage
50
20
IE = 0
f = 1 MHz
10
5
2
1.0
0.5
–1
–3
–10
–30
–100
Collector to Base Voltage VCB (V)
Contours of Constant Noise Figure (1)
100
30
VCE = –6 V
f = 10 Hz
10
3
1.0
NF
2
=
1
dB
0.3
0.1
–0.01
–0.1
–1.0
–10
Collector Current IC (mA)
4