START420 Datasheet, PDF (4/7 Pages) STMicroelectronics – NPN Silicon RF Transistor

START420
COMMON EMITTER S-PARAMETERS ( V_CE = 2V, I_C = 20mA )
FREQ
(MHz)
0.1
0.5
0.9
1
1.5
1.8
2
2.5
3
3.5
4
IS₁₁I S₁₁∠Φ
0.700
0.545
0.480
0.476
0.484
0.494
0.503
0.513
0.533
0.552
0.559
-22
-90
-130
-137
-167
180
172
158
148
140
134
IS₂₁I
S₂₁∠Φ
42.223
164
27.116
120
18.322
98
16.756
94
11.532
77
9.528
68
8.390
63
6.364
54
4.936
46
4.546
37
3.873
28
IS₁₂I
0.010
0.027
0.036
0.038
0.048
0.052
0.055
0.061
0.069
0.077
0.085
S₁₂∠Φ
89
58
48
47
42
39
37
32
27
21
14
IS₂₂I
0.932
0.632
0.421
0.387
0.263
0.210
0.183
0.148
0.143
0.153
0.154
S₂₂∠Φ
-12
-51
-71
-75
-96
-111
-123
-154
-171
178
163
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