2SC1342
Small Signal y Parameters (VCE = 6V, IC = 1 mA, Emitter Common Ta = 25°C)
Item
Symbol
yie
f = 50 MHz
f = 100 MHz
f = 200 MHz
11.5 + j15.25
–0.105 – j0.96
15.5 – j25
Unit
Input admittance
1.8 + j5.5
4.3 + j9.9
mS
Reverse transfer admittance
Forward transfer admittance
Output admittance
yre
–0.022 – j0.26 –0.04 – j0.52
yfe
34 – j12
28 – j19
yoe
0.1 + j0.5
0.15 + j0.9
0.21 + j1.45
Reverse Transfer Admittance vs. Frequency
Reverse Transfer Conductance gre (mS)
Input Admittance vs. Frequency
28
24
20
16
12
8
–0.3 –0.25 –0.2 –0.15 –0.1 –0.05
0
yie = gie + jbie
VCE = 6 V
f = 50 MHz
yre = gre + jbre
VCE = 6 V
100
70
–0.4
–0.8
–1.2
–1.6
–2.0
200
300
100
70
f = 50 MHz
200
5 mA
3 mA
2 mA
IC = 5 mA
4
IC = 1 mA
300
3 2 1
0
6
12 18 24 30 36 42
Input Conductance gie (mS)
Forward Transfer Admittance vs. Frequency
Forward Transfer Conductance gfe (mS)
Output Admittance vs. Frequency
3.0
2.5
2.0
1.5
1.0
0.5
–20
0
0
20
40
60
80
100
yoe = goe + jboe
VCE = 6 V
IC = 1 mA
yfe = gfe + jbfe
VCE = 6 V
300
–20
–40
2
200
3
300
100
70
200
–60
5
f = 50 MHz
100
IC = 1 mA
0.1
2
3
5
70
f = 50 MHz
–80
0.2
0.3
0.4
0.5
0.6
0
Output Conductance goe (mS)
–100
6
HITACHI [ HITACHI SEMICONDUCTOR ]
